UniProt functional annotation for Q57565

UniProt code: Q57565.

Organism:		Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) (Methanococcus jannaschii).
Taxonomy:		Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales; Methanocaldococcaceae; Methanocaldococcus.
Function:		Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Binds to the hydrophobic signal sequence of the ribosome-nascent chain (RNC) as it emerges from the ribosomes. The SRP-RNC complex is then targeted to the cytoplasmic membrane where it interacts with the SRP receptor FtsY. {ECO:0000255|HAMAP-Rule:MF_00306}.
Subunit:		Part of the signal recognition particle protein translocation system, which is composed of SRP and FtsY. Archaeal SRP consists of a 7S RNA molecule of 300 nucleotides and two protein subunits: SRP54 and SRP19. {ECO:0000255|HAMAP-Rule:MF_00306}.
Subcellular location:		Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00306}. Note=The SRP-RNC complex is targeted to the cytoplasmic membrane. {ECO:0000255|HAMAP-Rule:MF_00306}.
Domain:		Composed of three domains: the N-terminal N domain, which is responsible for interactions with the ribosome, the central G domain, which binds GTP, and the C-terminal M domain, which binds the RNA and the signal sequence of the RNC. {ECO:0000255|HAMAP-Rule:MF_00306}.
Similarity:		Belongs to the GTP-binding SRP family. SRP54 subfamily. {ECO:0000255|HAMAP-Rule:MF_00306}.

Annotations taken from UniProtKB at the EBI.