UniProt functional annotation for P0A7V3

UniProt codes: P0A7V3, P02352.

Organism: Escherichia coli (strain K12).
Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia.
 
Function: Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation (By similarity). {ECO:0000250}.
 
Function: Plays a role in mRNA unwinding by the ribosome, possibly by forming part of a processivity clamp. {ECO:0000269|PubMed:15652481}.
 
Subunit: Part of the 30S ribosomal subunit (PubMed:387449, PubMed:7556101, PubMed:12809609, PubMed:16272117, PubMed:27934701, PubMed:10094780, PubMed:12244297, PubMed:27906160, PubMed:27906161, PubMed:28077875). Forms a tight complex with proteins S10 and S14 (By similarity). With proteins S4 and S5 encircles the mRNA as it enters the ribosome, which may play a role in mRNA helicase processivity. Some nascent polypeptide chains are able to cross-link to this protein in situ. {ECO:0000255|HAMAP-Rule:MF_01309, ECO:0000269|PubMed:10094780, ECO:0000269|PubMed:12244297, ECO:0000269|PubMed:12809609, ECO:0000269|PubMed:16272117, ECO:0000269|PubMed:27906160, ECO:0000269|PubMed:27906161, ECO:0000269|PubMed:27934701, ECO:0000269|PubMed:28077875, ECO:0000269|PubMed:387449, ECO:0000269|PubMed:7556101}.
Mass spectrometry: Mass=25851.9; Method=MALDI; Evidence={ECO:0000269|PubMed:10094780};
Similarity: Belongs to the universal ribosomal protein uS3 family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.