A0A0N0K5D2 · A0A0N0K5D2_9PROT

Function

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. Interaction with FtsY leads to the transfer of the RNC complex to the Sec translocase for insertion into the membrane, the hydrolysis of GTP by both Ffh and FtsY, and the dissociation of the SRP-FtsY complex into the individual components.

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site107-114GTP (UniProtKB | ChEBI)
Binding site190-194GTP (UniProtKB | ChEBI)
Binding site248-251GTP (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane
Cellular Componentsignal recognition particle
Molecular Function7S RNA binding
Molecular FunctionATP hydrolysis activity
Molecular FunctionGTP binding
Molecular FunctionGTPase activity
Biological ProcessSRP-dependent cotranslational protein targeting to membrane

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Signal recognition particle protein
  • EC number
  • Alternative names
    • Fifty-four homolog

Gene names

    • Name
      ffh
    • ORF names
      IP70_24935

Organism names

Accessions

  • Primary accession
    A0A0N0K5D2

Proteomes

Subcellular Location

Cell inner membrane
; Peripheral membrane protein
Cytoplasm
Note: The SRP-RNC complex is targeted to the cytoplasmic membrane.

Keywords

Interaction

Subunit

Part of the signal recognition particle protein translocation system, which is composed of SRP and FtsY. SRP is a ribonucleoprotein composed of Ffh and a 4.5S RNA molecule.

Protein-protein interaction databases

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain269-282SRP54-type proteins GTP-binding

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.

Sequence similarities

Belongs to the GTP-binding SRP family. SRP54 subfamily.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    452
  • Mass (Da)
    49,117
  • Last updated
    2015-12-09 v1
  • Checksum
    CF47E2EA25966578
MFDGLTGRLGDIFDRLRKRGALSEDDVNAALREVRIALLEADVALPAVKAFVTGVKEKAIGTEVLRGINPGQMVIKIVHDHLVELLGSQVEDLNLEAVPPVPILMLGLQGSGKTTTSAKIAVRLKNRDKKKVLLASLDTRRPAAQEQLRILGEQTGVASLPIIAGQQPVEIARRAMEVGRLEGFDVVILDTAGRLAIDEELMAEVVAIRDVANPVESLLVVDAMTGQDAVTVATNFNDRVGITGIVMTRIDGDARGGAALSMRHVTGKPIKLMGMGEKTDALEPFHPDRIAGRILGMGDVVSLVEKAAESIDKEEAEKLAKKLEKGGFDLEDMLSQMRQIRKLGGMGGMMNLLPGMGKIKEQLKNANIDEKILDRQEAIILSMTKKERKKPDILNASRRRRIATGAGVTVADVNRLIKQYQDMSEMMKKMKKMGQKGLLRQGLGALMPKGLR

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
LJHR01000058
EMBL· GenBank· DDBJ
KPF80925.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.
FeedbackHelp