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GENE - TERM ANNOTATION REPORT

RGD ID: 1318314
Species: Mus musculus
RGD Object: Gene
Symbol: Srp14
Name: signal recognition particle 14
Acc ID: GO:0005786
Term: signal recognition particle, endoplasmic reticulum targeting
Definition: A ribonucleoprotein particle of 325 kDa composed of a 7S (300 nucleotide) RNA molecule and a complex of six different polypeptides. This binds both to the N-terminal signal peptide for proteins destined for the endoplasmic reticulum as they emerge from the large ribosomal subunit and also to the ribosome. This binding arrests further translation thereby preventing the proteins from being released into the cytosol. The SRP-ribosome complex then diffuses to the endoplasmic reticulum where it is bound to the signal recognition particle receptor, which allows resumption of protein synthesis and facilitates the passage of the growing polypeptide chain through the translocon. Through a process involving GTP hydrolysis, the SRP-SRP receptor complex dissociates and SRP returns to the cytosol. Of the six polypeptides of SRP the 54 kDa subunit (SRP54) is the central player. It contains an N-terminal GTPase domain and a C-terminal domain that binds directly to the signal peptide and the SRP RNA. Examples of this component are found in Mus musculus, Saccharomyces cerevisiae and Arabidopsis thaliana.
Definition Source(s): GOC:mtg_sensu, ISBN:0198506732
Note: Use of the qualifier "multiple interactions" designates that the annotated interaction is comprised of a complex set of reactions and/or regulatory events, possibly involving additional chemicals and/or gene products.
QualifierEvidenceWithReferenceSourceNotesOriginal Reference(s)
 IBAPANTHER:PTN000245647, SGD:S000002250, UniProtKB:P371082290270GO_Central (PMID:21873635)

PMID:21873635
 ISOUniProtKB:P371082290270MGI GO_REF:0000096, MGI:MGI:4834177
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.