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Conserved domains on  [gi|386781696|ref|NP_001247432|]
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signal recognition particle subunit SRP68 isoform 3 [Homo sapiens]

Protein Classification

signal recognition particle subunit SRP68 family protein( domain architecture ID 232311)

signal recognition particle (SRP) subunit SRP68 family protein similar to SRP subunit SRP68 that is part of the SRP complex that has a crucial role in targeting secretory proteins to the rough endoplasmic reticulum membrane

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
SRP68-RBD super family cl22422
RNA-binding domain of signal recognition particle subunit 68; Signal recognition particles ...
1-259 6.25e-60

RNA-binding domain of signal recognition particle subunit 68; Signal recognition particles (SRPs) are ribonucleoprotein complexes that target particular nascent pre-secretory proteins to the endoplasmic reticulum. SRP68 is one of the two largest proteins found in SRPs (the other being SRP72), and it forms a heterodimer with SRP72. Heterodimer formation is essential for SRP function. This model characterizes the N-terminal RNA-binding domain SRP68-RBD, a tetratricopeptide-like module. Interactions between SRP68-RBD and SRP RNA (7SL RNA) are thought to facilitate a conformation of SRP RNA that is required for interactions with ribosomal RNA.


The actual alignment was detected with superfamily member pfam16969:

Pssm-ID: 473954  Cd Length: 562  Bit Score: 199.44  E-value: 6.25e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696    1 MLSECRDAIQVVREELKPDQKQRdyILEGEPgKVSNLQYLHSYLTYIKLSTAIKRNENMAKGLQRALLQQQP-------- 72
Cdd:pfam16969 284 ILIASQDAVDATKQAIDELLKEG--VDQSDA-RMQSLQILRTAVNYELLSWRIGRNRVLIGEADGALFEESSdkspkkkk 360
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696   73 EDDSKRSPRPQDLIRLYDIILQNLVELLQLPGLEEDKAFQKEIGLKTLVFKAYRCFFIAQSYVLVKKWSEALVLYDRVLK 152
Cdd:pfam16969 361 KPTGRKLARLRELVRLYDALLQSLESIKELPGVAADEELVEELDAKRAYFRALRCLYIARSHALAGKYAEALALLKRALE 440
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696  153 YANE----VNSDAGAFKNSLKDLP-DVQELITQVRSEKCSLQAAAILD-----------ANDAHQTETSSSQVKDNKPLV 216
Cdd:pfam16969 441 LAANalskLSSSPATAPPNLDVLSeDLQELADLLKGELQRYRALVELDnlskeneslskGLSSLSLGGSAANGTSQKPLI 520
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|...
gi 386781696  217 ERFETFCLDPSLVTKQaNLVHFPPGFQPIPCKPLFFDLALNHV 259
Cdd:pfam16969 521 ERLDEYPSSGGVVDLK-NLVPYPPKLEPVPVKPIFLDVAWNYI 562
 
Name Accession Description Interval E-value
SRP68 pfam16969
RNA-binding signal recognition particle 68; SRP68 is a family that is part of the SRP or ...
1-259 6.25e-60

RNA-binding signal recognition particle 68; SRP68 is a family that is part of the SRP or signal recognition particle complex. This complex, consisting of six proteins and a 7SL-RNA is necessary for guiding the emerging proteins designed for the membrane towards the translocation pore. SRP68 forms a stable heterodimer with SRP72, a protein with a TPR repeat. Specific RNA-binding of SRP68 is mediated by the N-terminal domain of approximately 200 residues of this family.


Pssm-ID: 465323  Cd Length: 562  Bit Score: 199.44  E-value: 6.25e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696    1 MLSECRDAIQVVREELKPDQKQRdyILEGEPgKVSNLQYLHSYLTYIKLSTAIKRNENMAKGLQRALLQQQP-------- 72
Cdd:pfam16969 284 ILIASQDAVDATKQAIDELLKEG--VDQSDA-RMQSLQILRTAVNYELLSWRIGRNRVLIGEADGALFEESSdkspkkkk 360
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696   73 EDDSKRSPRPQDLIRLYDIILQNLVELLQLPGLEEDKAFQKEIGLKTLVFKAYRCFFIAQSYVLVKKWSEALVLYDRVLK 152
Cdd:pfam16969 361 KPTGRKLARLRELVRLYDALLQSLESIKELPGVAADEELVEELDAKRAYFRALRCLYIARSHALAGKYAEALALLKRALE 440
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696  153 YANE----VNSDAGAFKNSLKDLP-DVQELITQVRSEKCSLQAAAILD-----------ANDAHQTETSSSQVKDNKPLV 216
Cdd:pfam16969 441 LAANalskLSSSPATAPPNLDVLSeDLQELADLLKGELQRYRALVELDnlskeneslskGLSSLSLGGSAANGTSQKPLI 520
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|...
gi 386781696  217 ERFETFCLDPSLVTKQaNLVHFPPGFQPIPCKPLFFDLALNHV 259
Cdd:pfam16969 521 ERLDEYPSSGGVVDLK-NLVPYPPKLEPVPVKPIFLDVAWNYI 562
 
Name Accession Description Interval E-value
SRP68 pfam16969
RNA-binding signal recognition particle 68; SRP68 is a family that is part of the SRP or ...
1-259 6.25e-60

RNA-binding signal recognition particle 68; SRP68 is a family that is part of the SRP or signal recognition particle complex. This complex, consisting of six proteins and a 7SL-RNA is necessary for guiding the emerging proteins designed for the membrane towards the translocation pore. SRP68 forms a stable heterodimer with SRP72, a protein with a TPR repeat. Specific RNA-binding of SRP68 is mediated by the N-terminal domain of approximately 200 residues of this family.


Pssm-ID: 465323  Cd Length: 562  Bit Score: 199.44  E-value: 6.25e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696    1 MLSECRDAIQVVREELKPDQKQRdyILEGEPgKVSNLQYLHSYLTYIKLSTAIKRNENMAKGLQRALLQQQP-------- 72
Cdd:pfam16969 284 ILIASQDAVDATKQAIDELLKEG--VDQSDA-RMQSLQILRTAVNYELLSWRIGRNRVLIGEADGALFEESSdkspkkkk 360
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696   73 EDDSKRSPRPQDLIRLYDIILQNLVELLQLPGLEEDKAFQKEIGLKTLVFKAYRCFFIAQSYVLVKKWSEALVLYDRVLK 152
Cdd:pfam16969 361 KPTGRKLARLRELVRLYDALLQSLESIKELPGVAADEELVEELDAKRAYFRALRCLYIARSHALAGKYAEALALLKRALE 440
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 386781696  153 YANE----VNSDAGAFKNSLKDLP-DVQELITQVRSEKCSLQAAAILD-----------ANDAHQTETSSSQVKDNKPLV 216
Cdd:pfam16969 441 LAANalskLSSSPATAPPNLDVLSeDLQELADLLKGELQRYRALVELDnlskeneslskGLSSLSLGGSAANGTSQKPLI 520
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|...
gi 386781696  217 ERFETFCLDPSLVTKQaNLVHFPPGFQPIPCKPLFFDLALNHV 259
Cdd:pfam16969 521 ERLDEYPSSGGVVDLK-NLVPYPPKLEPVPVKPIFLDVAWNYI 562
 
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.
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