NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|90109482|pdb|2FJG|H]
View 

Chain H, Fab heavy chain

Protein Classification

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

 Name Accession Description Interval E-value
IgV_H cd04981
Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the ...
 3-119 9.26e-70

Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the immunoglobulin (Ig) heavy chain (H), variable (V) domain. This group contains the standard Ig superfamily V-set AGFCC'C"/DEB domain topology. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which can associate with any of the heavy chains. This family includes alpha, gamma, delta, epsilon, and mu heavy chains.


:

Pssm-ID: 409370 [Multi-domain]  Cd Length: 118  Bit Score: 209.09  E-value: 9.26e-70
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        3 QLVESGGGLVQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITPAGGYTYYADSVKGRFTISADTSKNTAYLQ 82
Cdd:cd04981   1 QLQESGPGLVKPGQSLKLSCKASGFTFTSYGMGWVRQAPGKGLEWIGLIYPGGGDTYYADSFKGRFTITRDTSKSTAYLQ 80

                        90       100       110
                ....*....|....*....|....*....|....*...
2FJG_H       83 MNSLRAEDTAVYYCAR-FVFFLPYAMDYWGQGTLVTVS 119
Cdd:cd04981  81 LNSLTSEDTAVYYCARgLGGYGYSYFDYWGQGTTVTVS 118
IgC1_CH1_IgEG cd21817
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and ...
 125-218 1.05e-44

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and gamma chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of epsilon and gamma chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


:

Pssm-ID: 409622  Cd Length: 94  Bit Score: 144.51  E-value: 1.05e-44
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      125 GPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICN 204
Cdd:cd21817   1 APSVFPLAPCCKSTNGSSVTLGCLVTGYFPEPVTVTWNSGSLTSGVKTFPAVLQSSGLYTTSSQVTVPSSSWGSQTFTCN 80

                        90
                ....*....|....
2FJG_H      205 VNHKPSNTKVDKKV 218
Cdd:cd21817  81 VEHKPSSTKVDKKI 94
 
Name Accession Description Interval E-value
IgV_H cd04981
Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the ...
 3-119 9.26e-70

Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the immunoglobulin (Ig) heavy chain (H), variable (V) domain. This group contains the standard Ig superfamily V-set AGFCC'C"/DEB domain topology. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which can associate with any of the heavy chains. This family includes alpha, gamma, delta, epsilon, and mu heavy chains.


Pssm-ID: 409370 [Multi-domain]  Cd Length: 118  Bit Score: 209.09  E-value: 9.26e-70
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        3 QLVESGGGLVQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITPAGGYTYYADSVKGRFTISADTSKNTAYLQ 82
Cdd:cd04981   1 QLQESGPGLVKPGQSLKLSCKASGFTFTSYGMGWVRQAPGKGLEWIGLIYPGGGDTYYADSFKGRFTITRDTSKSTAYLQ 80

                        90       100       110
                ....*....|....*....|....*....|....*...
2FJG_H       83 MNSLRAEDTAVYYCAR-FVFFLPYAMDYWGQGTLVTVS 119
Cdd:cd04981  81 LNSLTSEDTAVYYCARgLGGYGYSYFDYWGQGTTVTVS 118
IgC1_CH1_IgEG cd21817
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and ...
 125-218 1.05e-44

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and gamma chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of epsilon and gamma chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 409622  Cd Length: 94  Bit Score: 144.51  E-value: 1.05e-44
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      125 GPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICN 204
Cdd:cd21817   1 APSVFPLAPCCKSTNGSSVTLGCLVTGYFPEPVTVTWNSGSLTSGVKTFPAVLQSSGLYTTSSQVTVPSSSWGSQTFTCN 80

                        90
                ....*....|....
2FJG_H      205 VNHKPSNTKVDKKV 218
Cdd:cd21817  81 VEHKPSSTKVDKKI 94
IGv smart00406
Immunoglobulin V-Type;
17-98 1.82e-36

Immunoglobulin V-Type;


Pssm-ID: 214650  Cd Length: 81  Bit Score: 123.26  E-value: 1.82e-36
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H          17 SLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGItPAGGYTYYADSVKGRFTISADTSKNTAYLQMNSLRAEDTAVYYC 96
Cdd:smart00406   1 SVTLSCKFSGSTFSSYYVSWVRQPPGKGLEWLGYI-GSNGSSYYQESYKGRFTISKDTSKNDVSLTISNLRVEDTGTYYC 79


                   ..
2FJG_H          97 AR 98
Cdd:smart00406  80 AV 81
C1-set pfam07654
Immunoglobulin C1-set domain;
128-208 3.13e-14

Immunoglobulin C1-set domain;


Pssm-ID: 462221  Cd Length: 85  Bit Score: 65.73  E-value: 3.13e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        128 VFPLAPSSKSTsGGTAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSV-VTVPSSSLGTQTYICN 204
Cdd:pfam07654   1 VYVFPPSPEEL-GKPNTLTCLVTGFYPPDITVTWlkNGQEVTEGVKTTPPSPNSDWTYQLSSYlTVTPSDWESGDEYTCR 79


                  ....
2FJG_H        205 VNHK 208
Cdd:pfam07654  80 VEHE 83
V-set pfam07686
Immunoglobulin V-set domain; This domain is found in antibodies as well as neural protein P0 ...
 11-118 8.89e-13

Immunoglobulin V-set domain; This domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.


Pssm-ID: 462230  Cd Length: 109  Bit Score: 62.48  E-value: 8.89e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H         11 LVQPGGSLRLSCAASGFTISD-YWIHWVRQAPGKGLEWVAgitpaggyTYYADS-----VKGRFTISADTSKNTAYLQMN 84
Cdd:pfam07686   7 TVALGGSVTLPCTYSSSMSEAsTSVYWYRQPPGKGPTFLI--------AYYSNGseegvKKGRFSGRGDPSNGDGSLTIQ 78

                          90       100       110
                  ....*....|....*....|....*....|....
2FJG_H         85 SLRAEDTAVYYCARFvfflPYAMDYWGQGTLVTV 118
Cdd:pfam07686  79 NLTLSDSGTYTCAVI----PSGEGVFGKGTRLTV 108
IGc1 smart00407
Immunoglobulin C-Type;
142-207 9.03e-07

Immunoglobulin C-Type;


Pssm-ID: 214651  Cd Length: 75  Bit Score: 45.38  E-value: 9.03e-07
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
2FJG_H         142 TAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGT-QTYICNVNH 207
Cdd:smart00407   1 KATLVCLVSGFYPPDITVTWlrNGQEVTEGVSTTDPLKNSDGTYFLSSYLTVPASTWESgDVYTCQVTH 69
 
Name Accession Description Interval E-value
IgV_H cd04981
Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the ...
 3-119 9.26e-70

Immunoglobulin (Ig) heavy chain (H), variable (V) domain; The members here are composed of the immunoglobulin (Ig) heavy chain (H), variable (V) domain. This group contains the standard Ig superfamily V-set AGFCC'C"/DEB domain topology. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which can associate with any of the heavy chains. This family includes alpha, gamma, delta, epsilon, and mu heavy chains.


Pssm-ID: 409370 [Multi-domain]  Cd Length: 118  Bit Score: 209.09  E-value: 9.26e-70
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        3 QLVESGGGLVQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITPAGGYTYYADSVKGRFTISADTSKNTAYLQ 82
Cdd:cd04981   1 QLQESGPGLVKPGQSLKLSCKASGFTFTSYGMGWVRQAPGKGLEWIGLIYPGGGDTYYADSFKGRFTITRDTSKSTAYLQ 80

                        90       100       110
                ....*....|....*....|....*....|....*...
2FJG_H       83 MNSLRAEDTAVYYCAR-FVFFLPYAMDYWGQGTLVTVS 119
Cdd:cd04981  81 LNSLTSEDTAVYYCARgLGGYGYSYFDYWGQGTTVTVS 118
IgC1_CH1_IgEG cd21817
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and ...
 125-218 1.05e-44

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy epsilon and gamma chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of epsilon and gamma chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 409622  Cd Length: 94  Bit Score: 144.51  E-value: 1.05e-44
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      125 GPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICN 204
Cdd:cd21817   1 APSVFPLAPCCKSTNGSSVTLGCLVTGYFPEPVTVTWNSGSLTSGVKTFPAVLQSSGLYTTSSQVTVPSSSWGSQTFTCN 80

                        90
                ....*....|....
2FJG_H      205 VNHKPSNTKVDKKV 218
Cdd:cd21817  81 VEHKPSSTKVDKKI 94
IGv smart00406
Immunoglobulin V-Type;
17-98 1.82e-36

Immunoglobulin V-Type;


Pssm-ID: 214650  Cd Length: 81  Bit Score: 123.26  E-value: 1.82e-36
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H          17 SLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGItPAGGYTYYADSVKGRFTISADTSKNTAYLQMNSLRAEDTAVYYC 96
Cdd:smart00406   1 SVTLSCKFSGSTFSSYYVSWVRQPPGKGLEWLGYI-GSNGSSYYQESYKGRFTISKDTSKNDVSLTISNLRVEDTGTYYC 79


                   ..
2FJG_H          97 AR 98
Cdd:smart00406  80 AV 81
IgC1_CH1_IgADEGM cd04985
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy alpha, delta, ...
 125-218 3.76e-31

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy alpha, delta, epsilon, gamma, and mu chains; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 409374  Cd Length: 98  Bit Score: 109.99  E-value: 3.76e-31
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      125 GPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSW---NSGALTSGVHTFPAVLQSSGLYSLSSVVTV-PSSSLGTQT 200
Cdd:cd04985   1 APTVFPLQSATKSQSNGPVALGCLISDYFPESITVSWqknTNSITSGFTRTFPVVLRSGGDYSCSSQLTVpLQEWNSGEV 80

                        90
                ....*....|....*...
2FJG_H      201 YICNVNHKPSNTKVDKKV 218
Cdd:cd04985  81 YKCQVQHSASNSKQEKDV 98
IgV cd00099
Immunoglobulin variable domain (IgV); The members here are composed of the immunoglobulin ...
 11-118 4.58e-22

Immunoglobulin variable domain (IgV); The members here are composed of the immunoglobulin variable domain (IgV). The IgV family contains the standard Ig superfamily V-set AGFCC'C"/DEB domain topology, and are components of immunoglobulin (Ig) and T cell receptors. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. Within the variable domain, there are regions of even more variability called the hypervariable or complementarity-determining regions (CDRs) which are responsible for antigen binding. A predominant feature of most Ig domains is the disulfide bridge connecting 2 beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E and, D strands in one sheet and A', G, F, C, C', and C" strands in the other.


Pssm-ID: 409355 [Multi-domain]  Cd Length: 111  Bit Score: 87.00  E-value: 4.58e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       11 LVQPGGSLRLSCAASGFTISDYwIHWVRQAPGKGLEWVAGItpAGGYTYYADSVKGRFTISADTSKnTAYLQMNSLRAED 90
Cdd:cd00099   9 SVQEGESVTLSCEVSSSFSSTY-IYWYRQKPGQGPEFLIYL--SSSKGKTKGGVPGRFSGSRDGTS-SFSLTISNLQPED 84

                        90       100
                ....*....|....*....|....*...
2FJG_H       91 TAVYYCARFVfFLPYAMDYWGQGTLVTV 118
Cdd:cd00099  85 SGTYYCAVSE-SGGTDKLTFGSGTRLTV 111
IgV_TCR_gamma cd04982
Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) gamma chain; The members here ...
 13-98 7.01e-16

Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) gamma chain; The members here are composed of the immunoglobulin (Ig) variable (V) domain of the gamma chain of gamma/delta T-cell receptors (TCRs). TCRs mediate antigen recognition by T lymphocytes, and are heterodimers consisting of alpha and beta chains or gamma and delta chains. Each chain contains a variable (V) and a constant (C) region. The majority of T cells contain alpha/beta TCRs, but a small subset contain gamma/delta TCRs. Alpha/beta TCRs recognize antigens as peptide fragments presented by major histocompatibility complex (MHC) molecules. Gamma/delta TCRs recognize intact protein antigens directly without antigen processing and recognize MHC independently of the bound peptide. Gamma/delta T cells can also be stimulated by non-peptide antigens such as small phosphate- or amine-containing compounds. The variable domain of gamma/delta TCRs is responsible for antigen recognition and is located at the N-terminus of the receptor. Members of this group contain the standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409371  Cd Length: 117  Bit Score: 70.86  E-value: 7.01e-16
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       13 QPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITPAGGYTYYADSVKGRFTISADTSKNTAYLQMNSLRAEDTA 92
Cdd:cd04982  11 EESKSVTISCKVSGIDFSTTYIHWYRQKPGQALERLLYVSSTSAVRKDSGKTKNKFEARKDVGKSTSTLTITNLEKEDSA 90


                ....*.
2FJG_H       93 VYYCAR 98
Cdd:cd04982  91 TYYCAY 96
C1-set pfam07654
Immunoglobulin C1-set domain;
128-208 3.13e-14

Immunoglobulin C1-set domain;


Pssm-ID: 462221  Cd Length: 85  Bit Score: 65.73  E-value: 3.13e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        128 VFPLAPSSKSTsGGTAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSV-VTVPSSSLGTQTYICN 204
Cdd:pfam07654   1 VYVFPPSPEEL-GKPNTLTCLVTGFYPPDITVTWlkNGQEVTEGVKTTPPSPNSDWTYQLSSYlTVTPSDWESGDEYTCR 79


                  ....
2FJG_H        205 VNHK 208
Cdd:pfam07654  80 VEHE 83
IgC1_CH1_IgA cd21818
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy alpha chain; ...
 126-207 6.70e-14

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy alpha chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of alpha chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 409623  Cd Length: 94  Bit Score: 65.22  E-value: 6.70e-14
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      126 PSVFPLApSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSS-LGTQTYICN 204
Cdd:cd21818   2 PTVFPLS-LCPSLSSDPVVIGCLVQGFFPEPVNVTWNYSGKGGTARNFPAMLASGGRYTQSSQLTLPADQcPEGEAYKCS 80


                ...
2FJG_H      205 VNH 207
Cdd:cd21818  81 VQH 83
IgC1_CH1_IgM cd21819
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy mu chain; ...
 126-220 8.62e-14

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin heavy mu chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of mu chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 409624  Cd Length: 95  Bit Score: 64.66  E-value: 8.62e-14
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      126 PSVFPLAPSSkSTSGGTAALGCLVKDYFPEPVTVSWNSG--ALTSGVHTFPAVLqSSGLYSLSSVVTVPSSSLGTQTYI- 202
Cdd:cd21819   2 PTLFPLVSCG-SSTSDPVTVGCLATDFLPDSITFSWTDDnnSLTTGVKTYPSVL-TGGTYTASSQLQVPESEWKSKENFy 79

                        90
                ....*....|....*...
2FJG_H      203 CNVNHkpSNTKVDKKVEP 220
Cdd:cd21819  80 CKVEH--PGGNKEVPVPK 95
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 7-118 2.66e-13

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 63.29  E-value: 2.66e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H           7 SGGGLVQPGGSLRLSCAASGFtiSDYWIHWVRQapgkGLEWVAGitpaggytyyadsvKGRFTISadTSKNTAYLQMNSL 86
Cdd:smart00410   1 PPSVTVKEGESVTLSCEASGS--PPPEVTWYKQ----GGKLLAE--------------SGRFSVS--RSGSTSTLTISNV 58

                           90       100       110
                   ....*....|....*....|....*....|..
2FJG_H          87 RAEDTAVYYCARFvfflPYAMDYWGqGTLVTV 118
Cdd:smart00410  59 TPEDSGTYTCAAT----NSSGSASS-GTTLTV 85
IgV_L_lambda cd04984
Immunoglobulin (Ig) lambda light chain variable (V) domain; The members here are composed of ...
 12-118 6.96e-13

Immunoglobulin (Ig) lambda light chain variable (V) domain; The members here are composed of the immunoglobulin (Ig) light chain, lambda type, variable (V) domain. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda, each composed of a constant domain (CL) and a variable domain (VL). There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which seem to be functionally identical, and can associate with any of the heavy chains. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409373  Cd Length: 105  Bit Score: 62.86  E-value: 6.96e-13
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       12 VQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITPAGGytyyaDSVKGRFtiSADTSKNTAYLQMNSLRAEDT 91
Cdd:cd04984  10 VSPGETVTITCTGSSGNISGNYVNWYQQKPGSAPRYLIYEDKHRP-----SGIPDRF--SGSKSGNTASLTISGAQTEDE 82

                        90       100
                ....*....|....*....|....*...
2FJG_H       92 AVYYCArfvffLPYAMDY-WGQGTLVTV 118
Cdd:cd04984  83 ADYYCQ-----VWDSNSYvFGGGTKLTV 105
V-set pfam07686
Immunoglobulin V-set domain; This domain is found in antibodies as well as neural protein P0 ...
 11-118 8.89e-13

Immunoglobulin V-set domain; This domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.


Pssm-ID: 462230  Cd Length: 109  Bit Score: 62.48  E-value: 8.89e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H         11 LVQPGGSLRLSCAASGFTISD-YWIHWVRQAPGKGLEWVAgitpaggyTYYADS-----VKGRFTISADTSKNTAYLQMN 84
Cdd:pfam07686   7 TVALGGSVTLPCTYSSSMSEAsTSVYWYRQPPGKGPTFLI--------AYYSNGseegvKKGRFSGRGDPSNGDGSLTIQ 78

                          90       100       110
                  ....*....|....*....|....*....|....
2FJG_H         85 SLRAEDTAVYYCARFvfflPYAMDYWGQGTLVTV 118
Cdd:pfam07686  79 NLTLSDSGTYTCAVI----PSGEGVFGKGTRLTV 108
IgV_H_TCR_mu cd16095
T-cell receptor Mu, Heavy chain, variable (V) domain; The members here are composed of the ...
 1-100 2.32e-12

T-cell receptor Mu, Heavy chain, variable (V) domain; The members here are composed of the immunoglobulin (Ig) heavy chain (H), variable (V) domain of the T-cell receptor Mu. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which can associate with any of the heavy chains. This family includes alpha, gamma, delta, epsilon, and mu heavy chains. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409514  Cd Length: 115  Bit Score: 61.42  E-value: 2.32e-12
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        1 EVQLVESGGGLVQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWVAGITpaggyTYYADSVKGRFTISADTSKNTAY 80
Cdd:cd16095   1 ETQLEESGGGSHPAGKTLSLKCQTSGFQFNTSQLSWYLWVPGHAPLWLTSLD-----HISTKVSEDRITSSREDTNSQIF 75

                        90       100
                ....*....|....*....|
2FJG_H       81 LQMNSLRAEDTAVYYCARFV 100
Cdd:cd16095  76 LQIKGLGLRDSGQYHCARRV 95
IgV_TCR_alpha cd04983
Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) alpha chain and similar ...
 12-118 2.36e-11

Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) alpha chain and similar proteins; The members here are composed of the immunoglobulin (Ig) variable domain of the alpha chain of alpha/beta T-cell antigen receptors (TCRs). TCRs mediate antigen recognition by T lymphocytes, and are composed of alpha and beta, or gamma and delta polypeptide chains with variable (V) and constant (C) regions. This group represents the variable domain of the alpha chain of TCRs and also includes the variable domain of delta chains of TCRs. Alpha/beta TCRs recognize antigen as peptide fragments presented by major histocompatibility complex (MHC) molecules. The variable domain of TCRs is responsible for antigen recognition, and is located at the N-terminus of the receptor. Gamma/delta TCRs recognize intact protein antigens directly without antigen processing and recognize MHC independently of the bound peptide. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409372 [Multi-domain]  Cd Length: 109  Bit Score: 58.82  E-value: 2.36e-11
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       12 VQPGGSLRLSCAASgfTISDYWIHWVRQAPGKGLEWVAGITPAGGytyyaDSVKGRFTISADTSKNTAYLQMNSLRAEDT 91
Cdd:cd04983  10 VQEGENVTLNCNYS--TSTFYYLFWYRQYPGQGPQFLIYISSDSG-----NKKKGRFSATLDKSRKSSSLHISAAQLSDS 82

                        90       100
                ....*....|....*....|....*....
2FJG_H       92 AVYYCArfvFFLPYAMD--YWGQGTLVTV 118
Cdd:cd04983  83 AVYFCA---LSESGGTGklTFGKGTRLTV 108
IgC1 cd00098
Immunoglobulin Constant-1 (C1)-set domain; The members here are composed of C1-set domains, ...
 127-218 1.12e-10

Immunoglobulin Constant-1 (C1)-set domain; The members here are composed of C1-set domains, classical Ig-like domains resembling the antibody constant domain. Members of the IgC1 family are components of immunoglobulin, T-cell receptors, CD1 cell surface glycoproteins, secretory glycoproteins A/C, and major histocompatibility complex (MHC) class I/II molecules. In immunoglobulins, each chain is composed of one variable domain (IgV) and one or more IgC domains. These names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. The IgV domain is responsible for antigen binding, while the IgC domain is involved in oligomerization and molecular interactions. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other strands by G, F, C, and C'.


Pssm-ID: 409354  Cd Length: 95  Bit Score: 56.31  E-value: 1.12e-10
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      127 SVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQ-TYIC 203
Cdd:cd00098   1 TVTLLPPSPEEKGGGKVTLVCLVSGFYPKDITVTWlkNGVPLTSGVSTSSPVEPNDGTYSVTSSLTVPPSDWDEGaTYTC 80

                        90
                ....*....|....*
2FJG_H      204 NVNHKPSNTKVDKKV 218
Cdd:cd00098  81 VVTHESLKSPLSKTW 95
IgV_CD8_beta cd07700
Immunoglobulin (Ig) variable (V) domain of Cluster of Differentiation (CD) 8 beta chain; The ...
 11-97 3.46e-10

Immunoglobulin (Ig) variable (V) domain of Cluster of Differentiation (CD) 8 beta chain; The members here are composed of the immunoglobulin (Ig)-like domain in Cluster of Differentiation (CD) 8 beta. The CD8 glycoprotein plays an essential role in the control of T-cell selection, maturation, and the T-cell receptor (TCR)-mediated response to peptide antigen. CD8 is comprised of alpha and beta subunits and is expressed as either an alpha/alpha or alpha/beta dimer. Both dimeric isoforms can serve as a coreceptor for T cell activation and differentiation, however they have distinct physiological roles, different cellular distributions, unique binding partners, etc. Each CD8 subunit is comprised of an extracellular domain containing a V-type Ig-like domain, a single pass transmembrane portion, and a short intracellular domain. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409497  Cd Length: 116  Bit Score: 55.53  E-value: 3.46e-10
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       11 LVQPGGSLRLSCAASGFTISD--YWIHWvRQAPGKG--LEWVAGITPAGGYTYYADSVKGRFTISADTSKNTAYLQMNSL 86
Cdd:cd07700   9 LVQTNQTVKMSCEAKTSPKNTriYWLRQ-RQAPSKDshFEFLASWDPSKGIVYGEGVDQEKLIILSDSDSSRYILSLMSV 87

                        90
                ....*....|.
2FJG_H       87 RAEDTAVYYCA 97
Cdd:cd07700  88 KPEDSGTYFCM 98
IgV_TCR_beta cd05899
Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) beta chain; The members here ...
 11-118 2.86e-09

Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) beta chain; The members here are composed of the immunoglobulin (Ig) variable domain of the beta chain of alpha/beta T-cell antigen receptors (TCRs). TCRs mediate antigen recognition by T lymphocytes, and are composed of alpha and beta, or gamma and delta, polypeptide chains with variable (V) and constant (C) regions. This group includes the variable domain of the alpha chain of alpha/beta TCRs. Alpha/beta TCRs recognize antigen as peptide fragments presented by major histocompatibility complex (MHC) molecules. The variable domain of TCRs is responsible for antigen recognition, and is located at the N-terminus of the receptor. Gamma/delta TCRs recognize intact protein antigens directly without antigen processing and recognize MHC independently of the bound peptide. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409480  Cd Length: 110  Bit Score: 53.05  E-value: 2.86e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       11 LVQPGGSLRLSCAAsgfTISDYWIHWVRQAPGKGLEWVagITPAGGYTYYADSVKG-RFTIS-ADTSKNTayLQMNSLRA 88
Cdd:cd05899   9 IKRRGQSVTLRCSQ---KSGHDNMYWYRQDPGKGLQLL--FYSYGGGLNEEGDLPGdRFSASrPSLTRSS--LTIKSAEP 81

                        90       100       110
                ....*....|....*....|....*....|
2FJG_H       89 EDTAVYYCARFVFFLPYAMdYWGQGTLVTV 118
Cdd:cd05899  82 EDSAVYLCASSLGGGADEA-YFGPGTRLTV 110
IgV_TCR_delta cd07706
Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) delta chain; The members here ...
 30-118 5.31e-07

Immunoglobulin (Ig) variable (V) domain of T-cell receptor (TCR) delta chain; The members here are composed of the immunoglobulin (Ig) variable (V) domain of the delta chain of gamma/delta T-cell receptors (TCRs). TCRs mediate antigen recognition by T lymphocytes, and are heterodimers consisting of alpha and beta chains or gamma and delta chains. Each chain contains a variable (V) and a constant (C) region. The majority of T cells contain alpha/beta TCRs, but a small subset contain gamma/delta TCRs. Alpha/beta TCRs recognize antigen as peptide fragments presented by major histocompatibility complex (MHC) molecules. Gamma/delta TCRs recognize intact protein antigens; they recognize protein antigens directly and without antigen processing, and MHC independently of the bound peptide. Gamma/delta T cells can also be stimulated by non-peptide antigens such as small phosphate- or amine-containing compounds. The variable domain of gamma/delta TCRs is responsible for antigen recognition and is located at the N-terminus of the receptor. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409503  Cd Length: 112  Bit Score: 46.74  E-value: 5.31e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       30 SDYWIHWVRQAPGKGLEWVAGitpagGYTYYADSVKGRFTISADTSKNTAYLQMNSLRAEDTAVYYCArfvFFLPYAMD- 108
Cdd:cd07706  28 TNYYLFWYKQLPSGEMTFLIR-----QDSSEQNAKSGRYSVNFQKAQKSISLTISALQLEDSAKYFCA---LSLPYDTDk 99

                        90
                ....*....|.
2FJG_H      109 -YWGQGTLVTV 118
Cdd:cd07706 100 lIFGKGTRLTV 110
IgV_L_kappa cd04980
Immunoglobulin (Ig) light chain, kappa type, variable (V) domain; The members here are ...
 2-96 7.52e-07

Immunoglobulin (Ig) light chain, kappa type, variable (V) domain; The members here are composed of the immunoglobulin (Ig) light chain, kappa type, variable (V) domain. This group contains the standard Ig superfamily V-set AGFCC'C"/DEB domain topology. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda, each composed of a constant domain (CL) and a variable domain (VL). There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determines the type of immunoglobulin formed: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which seem to be functionally identical, and can associate with any of the heavy chains.


Pssm-ID: 409369  Cd Length: 106  Bit Score: 46.23  E-value: 7.52e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H        2 VQLVESGGGL-VQPGGSLRLSCAASGfTISDYWIHWVRQAPGKglewvagitPAGGYTYYADS----VKGRFTISADTSK 76
Cdd:cd04980   1 IVMTQSPASLsVSPGERVTISCKASQ-SISSNYLAWYQQKPGQ---------APKLLIYYASTlhsgVPSRFSGSGSGTD 70

                        90       100
                ....*....|....*....|
2FJG_H       77 NTayLQMNSLRAEDTAVYYC 96
Cdd:cd04980  71 FT--LTISSVEPEDAAVYYC 88
IgV_TCR_gammadelta cd20988
Gammadelta T-cell antigen receptor, variable (V) domain; The members here are composed of the ...
 12-118 7.64e-07

Gammadelta T-cell antigen receptor, variable (V) domain; The members here are composed of the immunoglobulin (Ig) variable (V) domain of the gamma/delta T-cell receptors (TCRs). TCRs mediate antigen recognition by T lymphocytes, and are heterodimers consisting of alpha and beta chains or gamma and delta chains. Each chain contains a variable (V) and a constant (C) region. The majority of T cells contain alpha/beta TCRs, but a small subset contain gamma/delta TCRs. Alpha/beta TCRs recognize antigen as peptide fragments presented by major histocompatibility complex (MHC) molecules. Gamma/delta TCRs recognize intact protein antigens; they recognize protein antigens directly and without antigen processing, and MHC independently of the bound peptide. Gamma/delta T cells can also be stimulated by non-peptide antigens such as small phosphate- or amine-containing compounds. The variable domain of gamma/delta TCRs is responsible for antigen recognition and is located at the N-terminus of the receptor. Members of this group contain standard Ig superfamily V-set AGFCC'C"/DEB domain topology.


Pssm-ID: 409580  Cd Length: 114  Bit Score: 46.40  E-value: 7.64e-07
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H       12 VQPGGSLRLSCAASGFTISDYWIHWVRQAPGKGLEWvagITPAGGytYYADSVKGRFTISADTSKNTAYLQMNSLRAEDT 91
Cdd:cd20988  10 VSVGKPVTLKCSMKGEAISNYYINWYRKTQGNTMTF---IYREGG--IYGPGFKDNFRGDIDSSNNLAVLKILEASERDE 84

                        90       100
                ....*....|....*....|....*....
2FJG_H       92 AVYYCARFVFFLPYAMD--YWGQGTLVTV 118
Cdd:cd20988  85 GSYYCASDTPGGGREYDplIFGKGTYLTV 113
IGc1 smart00407
Immunoglobulin C-Type;
142-207 9.03e-07

Immunoglobulin C-Type;


Pssm-ID: 214651  Cd Length: 75  Bit Score: 45.38  E-value: 9.03e-07
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
2FJG_H         142 TAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGT-QTYICNVNH 207
Cdd:smart00407   1 KATLVCLVSGFYPPDITVTWlrNGQEVTEGVSTTDPLKNSDGTYFLSSYLTVPASTWESgDVYTCQVTH 69
IgC1_CH3_IgAGD_CH4_IgAEM cd05768
CH3 domain (third constant Ig domain of the heavy chain) in immunoglobulin heavy alpha, gamma, ...
 126-164 1.67e-06

CH3 domain (third constant Ig domain of the heavy chain) in immunoglobulin heavy alpha, gamma, and delta chains, and CH4 domain (fourth constant Ig domain of the heavy chain) in immunoglobulin heavy alpha, epsilon, and mu chains; member of the C1-set of I; The members here are composed of the third and fourth immunoglobulin constant domain (IgC) of alpha, delta, gamma and alpha, epsilon, and mu heavy chains, respectively. This domain is found on the Fc fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns.


Pssm-ID: 409425  Cd Length: 105  Bit Score: 45.40  E-value: 1.67e-06
                        10        20        30        40
                ....*....|....*....|....*....|....*....|
2FJG_H      126 PSVFPLAPSSKS-TSGGTAALGCLVKDYFPEPVTVSWNSG 164
Cdd:cd05768   1 PSVYLLPPPEEElSLNETVTLTCLVKGFYPEDIFVSWLQN 40
IgC1_L cd07699
Immunoglobulin light chain Constant domain; member of the C1-set of Ig superfamily (IgSF) ...
 126-220 2.37e-06

Immunoglobulin light chain Constant domain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig) light chain constant (C) domain. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. In Ig, each chain is composed of one variable domain (IgV) and one or more constant domains (IgC); these names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. There are five types of heavy chains (alpha, gamma, delta, epsilon, and mu), which determine the type of immunoglobulin: IgA, IgG, IgD, IgE, and IgM, respectively. In higher vertebrates, there are two types of light chain, designated kappa and lambda, which seem to be functionally identical, and can associate with any of the heavy chains.


Pssm-ID: 409496  Cd Length: 99  Bit Score: 44.75  E-value: 2.37e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      126 PSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGT-QTYI 202
Cdd:cd07699   2 PSVTIFPPSSEELSSGKATLVCLINKFYPGFATVTWkvDGSTVSSGVTTSKTEQQSDNTYSMSSYLTLSSSDWNKhKVYT 81

                        90
                ....*....|....*...
2FJG_H      203 CNVNHKPSNTKVDKKVEP 220
Cdd:cd07699  82 CEVTHEGLSSTITKSFNR 99
IgC1_CH1_IgD cd16092
CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin delta chain; member ...
 125-213 4.42e-06

CH1 domain (first constant Ig domain of the heavy chain) in immunoglobulin delta chain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin constant-1 set domain of delta chains. It belongs to a family composed of the first immunoglobulin constant-1 set domain of alpha, delta, epsilon, gamma, and mu heavy chains. This domain is found on the Fab antigen-binding fragment. The basic structure of Ig molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). Ig molecules are modular proteins, in which the variable and constant domains have clear, conserved sequence patterns. This group belongs to the C1-set of IgSF domains, which are classical Ig-like domains resembling the antibody constant domain. C1-set domains are found almost exclusively in molecules involved in the immune system, such as in immunoglobulin light and heavy chains, in the major histocompatibility complex (MHC) class I and II complex molecules, and in various T-cell receptors.


Pssm-ID: 319341  Cd Length: 96  Bit Score: 44.06  E-value: 4.42e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
2FJG_H      125 GPSVFPLAPSSKSTSGGT-AALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYIC 203
Cdd:cd16092   1 APDVFPIISGCRHPKDNSpVVLACLITGYHPTSVTVTWYMGTQSQPQRTFPEIQRRDSYYMTSSQLSTPLQQWRQGEYKC 80

                        90
                ....*....|
2FJG_H      204 NVNHKPSNTK 213
Cdd:cd16092  81 VVQHTASKSK 90
IgC1_TCR_beta cd05769
T cell receptor (TCR) beta chain constant immunoglobulin domain; member of the C1-set of Ig ...
 124-181 9.55e-05

T cell receptor (TCR) beta chain constant immunoglobulin domain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the T cell receptor (TCR) beta chain constant immunoglobulin domain. TCRs mediate antigen recognition by T lymphocytes, and are composed of alpha and beta, or gamma and delta, polypeptide chains with variable (V) and constant (C) regions. This group includes the variable domain of the beta chain. Alpha/beta TCRs recognize antigen as peptide fragments presented by major histocompatibility complex (MHC) molecules. The antigen binding site is formed by the variable domains of the alpha and beta chains, located at the N-terminus of each chain. Alpha/beta TCRs recognize antigens differently from gamma/delta TCRs.


Pssm-ID: 409426 [Multi-domain]  Cd Length: 116  Bit Score: 40.44  E-value: 9.55e-05
                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|.
2FJG_H      124 KGPSVFPLAPSSKSTSG-GTAALGCLVKDYFPEPVTVSW--NSGALTSGVHTFPAVLQSSG 181
Cdd:cd05769   1 TPPTVALFPPSEAEIRNkRKATLVCLATGFYPDHVSLSWkvNGKEVKDGVATDPQALRENT 61
IgC1_CH2_IgE cd05847
CH2 domain (second constant Ig domain of the heavy chain) in immunoglobulin E (IgE); member of ...
 126-161 6.14e-03

CH2 domain (second constant Ig domain of the heavy chain) in immunoglobulin E (IgE); member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the second constant domain of the heavy chain of immunoglobulin E (IgE). The basic structure of immunoglobulin (Ig) molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda; each is composed of a constant domain and a variable domain. There are five types of heavy chains: alpha, delta, epsilon, gamma, and mu, all consisting of a variable domain (VH) with three (alpha, delta, and gamma) or four (epsilon and mu) constant domains (CH1 to CH4). The different classes of antibodies vary in their heavy chains; the IgE class has the epsilon type. This domain (Cepsilon2) of IgE is in place of the flexible hinge region found in IgG.


Pssm-ID: 409434  Cd Length: 97  Bit Score: 35.08  E-value: 6.14e-03
                        10        20        30
                ....*....|....*....|....*....|....*..
2FJG_H      126 PSVFPLAPSSKSTSG-GTAALGCLVKDYFPEPVTVSW 161
Cdd:cd05847   1 PTVQILHSSCASTLTsETIQLLCLISGYTPSTIEVEW 37
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH