NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|6912488|ref|NP_036454|]
View 

U6 snRNA-associated Sm-like protein LSm5 isoform a [Homo sapiens]

Protein Classification

U6 snRNA-associated Sm-like protein LSm5( domain architecture ID 10109614)

U6 snRNA-associated Sm-like protein LSm5 plays role in pre-mRNA splicing as a component of the U4/U6-U5 tri-snRNP complex that is involved in spliceosome assembly, and as a component of the precatalytic spliceosome (spliceosome B complex)

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
LSm5 cd01732
Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
11-86 1.33e-52

Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


:

Pssm-ID: 212479 [Multi-domain]  Cd Length: 76  Bit Score: 158.56  E-value: 1.33e-52
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  11 QLLPLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRITKLDQILLNGNNITMLVPGG 86
Cdd:cd01732  1 QILPLELIDKCIGSKIWIIMKSDKEFVGTLLGFDDYVNMVLEDVTEYEITPEGRKITKLDQILLNGNNIAMLVPGG 76
 
Name Accession Description Interval E-value
LSm5 cd01732
Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
11-86 1.33e-52

Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212479 [Multi-domain]  Cd Length: 76  Bit Score: 158.56  E-value: 1.33e-52
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  11 QLLPLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRITKLDQILLNGNNITMLVPGG 86
Cdd:cd01732  1 QILPLELIDKCIGSKIWIIMKSDKEFVGTLLGFDDYVNMVLEDVTEYEITPEGRKITKLDQILLNGNNIAMLVPGG 76
LSM pfam01423
LSM domain; The LSM domain contains Sm proteins as well as other related LSM (Like Sm) ...
16-84 2.38e-18

LSM domain; The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.


Pssm-ID: 426258  Cd Length: 66  Bit Score: 71.38  E-value: 2.38e-18
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 6912488    16 ELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRritKLDQILLNGNNITMLVP 84
Cdd:pfam01423  1 KFLKKLLGKRVLVELKNGRELRGTLKGFDQFMNLVLDDVEETIKDGEVR---KLGLVLIRGNNIVLISP 66
Sm smart00651
snRNP Sm proteins; small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA ...
17-84 4.00e-17

snRNP Sm proteins; small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing


Pssm-ID: 197820 [Multi-domain]  Cd Length: 67  Bit Score: 68.68  E-value: 4.00e-17
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 6912488     17 LVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPEGRRITKLDQILLNGNNITMLVP 84
Cdd:smart00651  2 FLKKLIGKRVLVELKNGREYRGTLKGFDQFMNLVLEDVE--ETVKDGEKKRKLGLVFIRGNNIVYIIL 67
LSM1 COG1958
Small nuclear ribonucleoprotein (snRNP) homolog [Transcription];
14-79 5.02e-14

Small nuclear ribonucleoprotein (snRNP) homolog [Transcription];


Pssm-ID: 441561  Cd Length: 71  Bit Score: 60.59  E-value: 5.02e-14
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEitpEGRRITKLDQILLNGNNI 79
Cdd:COG1958  5 PLKVLEKSLGKRVLVKLKDGREYRGKLKGYDQHMNLVLEDAEEID---DGEVVRKLGTVVIRGDNV 67
PTZ00138 PTZ00138
small nuclear ribonucleoprotein; Provisional
26-82 3.19e-08

small nuclear ribonucleoprotein; Provisional


Pssm-ID: 185472  Cd Length: 89  Bit Score: 46.64  E-value: 3.19e-08
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6912488   26 IHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRitKLDQILLNGNNITML 82
Cdd:PTZ00138 31 IWLYDHPNLRIEGKILGFDEYMNMVLDDAEEVYTKKNTRK--DLGRILLKGDNITLI 85
 
Name Accession Description Interval E-value
LSm5 cd01732
Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
11-86 1.33e-52

Like-Sm protein 5; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212479 [Multi-domain]  Cd Length: 76  Bit Score: 158.56  E-value: 1.33e-52
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  11 QLLPLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRITKLDQILLNGNNITMLVPGG 86
Cdd:cd01732  1 QILPLELIDKCIGSKIWIIMKSDKEFVGTLLGFDDYVNMVLEDVTEYEITPEGRKITKLDQILLNGNNIAMLVPGG 76
LSM pfam01423
LSM domain; The LSM domain contains Sm proteins as well as other related LSM (Like Sm) ...
16-84 2.38e-18

LSM domain; The LSM domain contains Sm proteins as well as other related LSM (Like Sm) proteins. The U1, U2, U4/U6, and U5 small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing contain seven Sm proteins (B/B', D1, D2, D3, E, F and G) in common, which assemble around the Sm site present in four of the major spliceosomal small nuclear RNAs. The U6 snRNP binds to the LSM (Like Sm) proteins. Sm proteins are also found in archaebacteria, which do not have any splicing apparatus suggesting a more general role for Sm proteins. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. This family also includes the bacterial Hfq (host factor Q) proteins. Hfq are also RNA-binding proteins, that form hexameric rings.


Pssm-ID: 426258  Cd Length: 66  Bit Score: 71.38  E-value: 2.38e-18
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 6912488    16 ELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRritKLDQILLNGNNITMLVP 84
Cdd:pfam01423  1 KFLKKLLGKRVLVELKNGRELRGTLKGFDQFMNLVLDDVEETIKDGEVR---KLGLVLIRGNNIVLISP 66
Sm smart00651
snRNP Sm proteins; small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA ...
17-84 4.00e-17

snRNP Sm proteins; small nuclear ribonucleoprotein particles (snRNPs) involved in pre-mRNA splicing


Pssm-ID: 197820 [Multi-domain]  Cd Length: 67  Bit Score: 68.68  E-value: 4.00e-17
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 6912488     17 LVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPEGRRITKLDQILLNGNNITMLVP 84
Cdd:smart00651  2 FLKKLIGKRVLVELKNGREYRGTLKGFDQFMNLVLEDVE--ETVKDGEKKRKLGLVFIRGNNIVYIIL 67
Sm_like cd00600
Sm and related proteins; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to ...
18-82 3.59e-14

Sm and related proteins; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to form the core domain of the ribonucleoprotein particles involved in a variety of RNA processing events including pre-mRNA splicing, telomere replication, and mRNA degradation. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm-like proteins exist in archaea as well as prokaryotes that form heptameric and hexameric ring structures similar to those found in eukaryotes.


Pssm-ID: 212462 [Multi-domain]  Cd Length: 63  Bit Score: 61.11  E-value: 3.59e-14
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 6912488  18 VDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEfeiTPEGRRITKLDQILLNGNNITML 82
Cdd:cd00600  1 LKDFIGKTVSVELKDGRVLTGTLVAFDKYMNLVLDDVVE---TGRDGKVRVLGLVLIRGSNIVSI 62
LSM1 COG1958
Small nuclear ribonucleoprotein (snRNP) homolog [Transcription];
14-79 5.02e-14

Small nuclear ribonucleoprotein (snRNP) homolog [Transcription];


Pssm-ID: 441561  Cd Length: 71  Bit Score: 60.59  E-value: 5.02e-14
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEitpEGRRITKLDQILLNGNNI 79
Cdd:COG1958  5 PLKVLEKSLGKRVLVKLKDGREYRGKLKGYDQHMNLVLEDAEEID---DGEVVRKLGTVVIRGDNV 67
Sm_E cd01718
Sm protein E; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
25-84 3.04e-10

Sm protein E; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm subunit E binds subunits F and G to form a trimer which then assembles onto snRNA along with the D1/D2 and D3/B heterodimers forming a seven-membered ring structure.


Pssm-ID: 212465  Cd Length: 79  Bit Score: 51.40  E-value: 3.04e-10
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912488  25 RIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRitKLDQILLNGNNITMLVP 84
Cdd:cd01718 22 QIWLYEQTDMRIEGKIIGFDEYMNLVLDDAEEVHLKTNTRK--PLGRILLKGDNITLIQN 79
archaeal_Sm1 cd01731
archaeal Sm protein 1; The archaeal Sm1 proteins: The Sm proteins are conserved in all three ...
14-84 1.55e-09

archaeal Sm protein 1; The archaeal Sm1 proteins: The Sm proteins are conserved in all three domains of life and are always associated with U-rich RNA sequences. They function to mediate RNA-RNA interactions and RNA biogenesis. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. Eukaryotic Sm proteins form part of specific small nuclear ribonucleoproteins (snRNPs) that are involved in the processing of pre-mRNAs to mature mRNAs, and are a major component of the eukaryotic spliceosome. Most snRNPs consist of seven Sm proteins (B/B', D1, D2, D3, E, F and G) arranged in a ring on a uridine-rich sequence (Sm site), plus a small nuclear RNA (snRNA) (either U1, U2, U5 or U4/6). Since archaebacteria do not have any splicing apparatus, their Sm proteins may play a more general role. Archaeal LSm proteins are likely to represent the ancestral Sm domain.


Pssm-ID: 212478  Cd Length: 69  Bit Score: 49.11  E-value: 1.55e-09
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVtefEITPEGRRITKLDQILLNGNNITMLVP 84
Cdd:cd01731  2 PLDVLNESLNKNVLVKLKGGKEVRGVLKGFDQHLNLVLENA---EEIIEGESVRKLGTVLVRGDNVVFISP 69
PTZ00138 PTZ00138
small nuclear ribonucleoprotein; Provisional
26-82 3.19e-08

small nuclear ribonucleoprotein; Provisional


Pssm-ID: 185472  Cd Length: 89  Bit Score: 46.64  E-value: 3.19e-08
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6912488   26 IHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRitKLDQILLNGNNITML 82
Cdd:PTZ00138 31 IWLYDHPNLRIEGKILGFDEYMNMVLDDAEEVYTKKNTRK--DLGRILLKGDNITLI 85
LSm3 cd01730
Like-Sm protein 3; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
14-82 4.10e-08

Like-Sm protein 3; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212477  Cd Length: 82  Bit Score: 46.06  E-value: 4.10e-08
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPEGRRITKLDQILLNGNNITML 82
Cdd:cd01730  2 PLDLIRLSLDERVYVKLRGDRELRGRLHAYDQHLNMILGDVEETITTVEIDEETYEEIYKTTKRNIPML 70
archaeal_LSm cd11678
archaeal Like-Sm protein; The archaeal Sm-like (LSm): The Sm proteins are conserved in all ...
14-84 6.84e-08

archaeal Like-Sm protein; The archaeal Sm-like (LSm): The Sm proteins are conserved in all three domains of life and are always associated with U-rich RNA sequences. They function to mediate RNA-RNA interactions and RNA biogenesis. All Sm proteins contain a common sequence motif in two segments, Sm1 and Sm2, separated by a short variable linker. Eukaryotic Sm proteins form part of specific small nuclear ribonucleoproteins (snRNPs) that are involved in the processing of pre-mRNAs to mature mRNAs, and are a major component of the eukaryotic spliceosome. Most snRNPs consist of seven Sm proteins (B/B', D1, D2, D3, E, F and G) arranged in a ring on a uridine-rich sequence (Sm site), plus a small nuclear RNA (snRNA) (either U1, U2, U5 or U4/6). Since archaebacteria do not have any splicing apparatus, their Sm proteins may play a more general role. Archaeal LSm proteins are likely to represent the ancestral Sm domain. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm-like proteins exist in archaea as well as prokaryotes that form heptameric and hexameric ring structures similar to those found in eukaryotes.


Pssm-ID: 212489  Cd Length: 69  Bit Score: 45.19  E-value: 6.84e-08
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 6912488  14 PLELVDKCIGSRIHIVMKSD-KEIVGTLLGFDDFVNMVLEDVTEfeiTPEGRRITKLDQILLNGNNITMLVP 84
Cdd:cd11678  1 PNKKVKSLVGSRIRVEMKGDeNQLQGRLVAVDDYMNLHLTDTME---CVGEEKVRSLGTVVLRGNNILLIQP 69
LSm6 cd01726
Like-Sm protein 6; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
14-79 1.33e-07

Like-Sm protein 6; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. LSm657 is believed to be an assembly intermediate for both the LSm1-7 and LSm2-8 rings. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212473  Cd Length: 68  Bit Score: 44.43  E-value: 1.33e-07
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFeitPEGRRITKLDQILLNGNNI 79
Cdd:cd01726  2 PSKFLKKIIGKPVVVKLKNGVEYRGVLACLDGYMNLVLEDTEEY---VDGQLVAKYGDAFIRGNNV 64
PRK00737 PRK00737
small nuclear ribonucleoprotein; Provisional
14-84 1.95e-06

small nuclear ribonucleoprotein; Provisional


Pssm-ID: 179104  Cd Length: 72  Bit Score: 41.52  E-value: 1.95e-06
                        10        20        30        40        50        60        70
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 6912488   14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEitpEGRRITKLDQILLNGNNITMLVP 84
Cdd:PRK00737  5 PLDVLNNALNSPVLVRLKGGREFRGELQGYDIHMNLVLDNAEEIQ---DGEVVRKLGKVVIRGDNVVYVSP 72
Sm_G cd01719
Sm protein G; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
20-84 1.15e-05

Sm protein G; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm subunit G binds subunits E and F to form a trimer which then assembles onto snRNA along with the D1/D2 and D3/B heterodimers forming a seven-membered ring structure.


Pssm-ID: 212466  Cd Length: 70  Bit Score: 39.42  E-value: 1.15e-05
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 6912488  20 KCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPEGRRiTKLDQILLNGNNITMLVP 84
Cdd:cd01719  7 KYMDKRLSLKLNGNRKVSGVLRGFDPFMNLVLDDAV--EEVGDGEK-TPIGMVVIRGNSIIMIEA 68
LSm7 cd01729
Like-Sm protein 7; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
19-90 3.52e-05

Like-Sm protein 7; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. LSm657 is believed to be an assembly intermediate for both the LSm1-7 and LSm2-8 rings. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212476  Cd Length: 89  Bit Score: 38.72  E-value: 3.52e-05
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 6912488  19 DKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPE-----GRRITKLDQILLNGNNITMLVPgGEGPE 90
Cdd:cd01729  8 SKYVDKKIRVKFQGGREVTGILKGYDQLLNLVLDDTVEYLRDPEdpyklTDETRSLGLVVCRGTSVVLISP-VDGTE 83
Sm_B cd01717
Sm protein B; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
22-79 1.06e-04

Sm protein B; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold, containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212464  Cd Length: 80  Bit Score: 37.15  E-value: 1.06e-04
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 6912488  22 IGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITP----------EGRRITKLdqILLNGNNI 79
Cdd:cd01717  9 INYRMRVTLQDGRQFVGTFLAFDKHMNLVLSDCEEFRKIKpkkkkkgeerEEKRVLGL--VLLRGENV 74
Sm_F cd01722
Sm protein F; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
22-79 2.89e-04

Sm protein F; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm subunit F is capable of forming both homo- and hetero-heptamer ring structures. To form the hetero-heptamer, Sm subunit F initially binds subunits E and G to form a trimer which then assembles onto snRNA along with the D3/B and D1/D2 heterodimers.


Pssm-ID: 212469  Cd Length: 69  Bit Score: 35.65  E-value: 2.89e-04
                       10        20        30        40        50
               ....*....|....*....|....*....|....*....|....*....|....*...
gi 6912488  22 IGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEitpEGRRITKLDQILLNGNNI 79
Cdd:cd01722 10 TGKPVIVKLKWGMEYKGTLVSVDSYMNLQLANTEEYI---DGKFTGNLGEVLIRCNNV 64
LSm4 cd01723
Like-Sm protein 4; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
13-79 4.00e-04

Like-Sm protein 4; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212470 [Multi-domain]  Cd Length: 76  Bit Score: 35.63  E-value: 4.00e-04
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 6912488  13 LPLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPEGRRITKLDQILLNGNNI 79
Cdd:cd01723  1 LPLSLLRTAQGHPVLVELKNGETYNGHLVNCDNWMNIHLKNVI--CTSKDGDRFWKMPECYIRGNTI 65
Sm_D3 cd01721
Sm protein D3; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
14-83 5.92e-04

Sm protein D3; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm subunit D3 heterodimerizes with subunit B and three such heterodimers form a hexameric ring structure with alternating B and D3 subunits. The D3 - B heterodimer also assembles into a heptameric ring containing D1, D2, E, F, and G subunits.


Pssm-ID: 212468  Cd Length: 70  Bit Score: 34.80  E-value: 5.92e-04
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 6912488  14 PLELVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefeITPEGRRITKLDQILLNGNNITMLV 83
Cdd:cd01721  1 PIKLLHEAEGHIVTVELKTGEVYRGKLIEAEDNMNCQLKDVT---VTARDGKVSKLEQVYIRGSQIRFII 67
LSm10 cd01733
Like-Sm protein 10; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to form ...
17-79 7.59e-04

Like-Sm protein 10; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to form the core domain of the ribonucleoprotein particles involved in a variety of RNA processing events including pre-mRNA splicing, telomere replication, and mRNA degradation. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. LSm10 is an SmD1-like protein which is thought to bind U7 snRNA along with LSm11 and five other Sm subunits to form a 7-membered ring structure. LSm10 and the U7 snRNP of which it is a part are thought to play an important role in histone mRNA 3' processing.


Pssm-ID: 212480  Cd Length: 78  Bit Score: 34.82  E-value: 7.59e-04
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 6912488  17 LVDKCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPEGRRiTKLDQILLNGNNI 79
Cdd:cd01733 13 LLQALQGRVTTVELRNETSVRGIIDNVDGFMNITLSDAT--FTDRRGKQ-HHFDEFFVQGRNI 72
LSm1 cd01728
Like-Sm protein 1; The eukaryotic LSm proteins (LSm1-7) assemble into a hetero-heptameric ring ...
20-56 1.70e-03

Like-Sm protein 1; The eukaryotic LSm proteins (LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. Accumulation of uridylated RNAs in an lsm1 mutant suggests an involvement of the LSm1-7 complex in recognition of the 3' uridylation tag and recruitment of the decapping machinery. LSm1-7, together with Pat1, are also called the decapping activator. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212475  Cd Length: 74  Bit Score: 34.03  E-value: 1.70e-03
                       10        20        30
               ....*....|....*....|....*....|....*..
gi 6912488  20 KCIGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTE 56
Cdd:cd01728  9 EELDKKILVVLRDGRKLIGILRSFDQFANLVLEDTVE 45
LSMD1 cd06168
LSM domain containing 1; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to ...
22-62 1.82e-03

LSM domain containing 1; The eukaryotic Sm and Sm-like (LSm) proteins associate with RNA to form the core domain of the ribonucleoprotein particles involved in a variety of RNA processing events including pre-mRNA splicing, telomere replication, and mRNA degradation. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. LSMD1 proteins have a single Sm-like domain structure. Sm-like proteins exist in archaea as well as prokaryotes, forming heptameric and hexameric ring structures similar to those found in eukaryotes.


Pssm-ID: 212486  Cd Length: 73  Bit Score: 33.68  E-value: 1.82e-03
                       10        20        30        40
               ....*....|....*....|....*....|....*....|.
gi 6912488  22 IGSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITPE 62
Cdd:cd06168  8 LGRTLRVTLTDGRVLVGTFVCTDKDGNIILSNAEEYRKPSD 48
Sm_D2 cd01720
Sm protein D2; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a ...
14-62 6.19e-03

Sm protein D2; The eukaryotic Sm proteins (B/B', D1, D2, D3, E, F and G) assemble into a hetero-heptameric ring around the Sm site of the 2,2,7-trimethyl guanosine (m3G) capped U1, U2, U4 and U5 snRNAs (Sm snRNAs) forming the core of the snRNP particle. The snRNP particle, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet. Sm subunit D2 heterodimerizes with subunit D1 and three such heterodimers form a hexameric ring structure with alternating D1 and D2 subunits. The D1 - D2 heterodimer also assembles into a heptameric ring containing D2, D3, E, F, and G subunits.


Pssm-ID: 212467  Cd Length: 89  Bit Score: 32.69  E-value: 6.19e-03
                       10        20        30        40        50
               ....*....|....*....|....*....|....*....|....*....|.
gi 6912488  14 PLELVDKCI--GSRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTefEITPE 62
Cdd:cd01720  5 PLSLLTQSVknNTQVLINCRNNKKLLARVKAFDRHCNMVLENVK--EMWTE 53
LSm8 cd01727
Like-Sm protein 8; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a ...
13-79 6.70e-03

Like-Sm protein 8; The eukaryotic LSm proteins (LSm2-8 or LSm1-7) assemble into a hetero-heptameric ring around the 3'-terminus uridylation tag of the gamma-methyl triphosphate (gamma-m-P3) capped U6 snRNA. LSm2-8 form the core of the snRNP particle that, in turn, assembles with other components onto the pre-mRNA to form the spliceosome which is responsible for the excision of introns and the ligation of exons. LSm1-7 is involved in recognition of the 3' uridylation tag and recruitment of the decapping machinery. LSm657 is believed to be an assembly intermediate for both the LSm1-7 and LSm2-8 rings. Members of this family share a highly conserved Sm fold containing an N-terminal helix followed by a strongly bent five-stranded antiparallel beta-sheet.


Pssm-ID: 212474  Cd Length: 91  Bit Score: 32.50  E-value: 6.70e-03
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 6912488  13 LPLELVDKcigsRIHIVMKSDKEIVGTLLGFDDFVNMVLEDVTEFEITP-EGRRITKLDQILLNGNNI 79
Cdd:cd01727  3 LLEDYLNK----RVVVITTDGRVIVGTLKGFDQTTNLILSNCHERVYSSdEGVEEVPLGLYLLRGDNV 66
 
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