Protein Name:
Protein transport protein Sec61 subunit beta
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UniprotKB/SwissProt ID: Q9CQS8 (Q9CQS8)
Gene Name:
Sec61b
Organism: Mus musculus (Mouse)
Function: Component of SEC61 channel-forming translocon complex that mediates transport of signal peptide-containing precursor polypeptides across the endoplasmic reticulum (ER) (By similarity). Forms a ribosome receptor and a gated pore in the ER membrane, both functions required for cotranslational translocation of nascent polypeptides (By similarity). The SEC61 channel is also involved in ER membrane insertion of transmembrane proteins: it mediates membrane insertion of the first few transmembrane segments of proteins, while insertion of subsequent transmembrane regions of multi-pass membrane proteins is mediated by the multi-pass translocon (MPT) complex (By similarity). The SEC61 channel cooperates with the translocating protein TRAM1 to import nascent proteins into the ER (By similarity). Required for PKD1/Polycystin-1 biogenesis (PubMed:28375157)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Endoplasmic reticulum membrane
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Graphical Visualization of S-nitrosylation Sites:
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