UniProt functional annotation for P0A7M9

UniProt code: P0A7M9.

Organism: Escherichia coli (strain K12).
Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacteriales; Enterobacteriaceae; Escherichia.
Function: Binds the 23S rRNA. {ECO:0000250}.
Cofactor: Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000269|PubMed:22196016}; Note=Binds 1 zinc ion per subunit. Only 1 ligand appears to be Cys, the other are thought to be His and either backbone amides or solvent (PubMed:22196016). {ECO:0000269|PubMed:22196016};
Subunit: Part of the 50S ribosomal subunit.
Ptm: Proteolytically cleaved by protease VII to yield a peptide lacking residues 63-70. It is not clear if this is due to protein degradation or is a bona fide processing event in the strain used in PubMed:339950 and PubMed:10556732. In strains B, D10, MRE-600 and Q13 the only protein seen in PubMed:10556732 was full length; the last 7 amino acids were sequenced only for strain MRE-600.
Mass spectrometry: Mass=6971.1; Method=MALDI; Range=1-62; Evidence={ECO:0000269|PubMed:10094780};
Mass spectrometry: Mass=7871.0; Method=MALDI; Range=1-70; Evidence={ECO:0000269|PubMed:10094780};
Similarity: Belongs to the ribosomal protein L31P family. Type A subfamily. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.