PROSITE documentation PDOC01021
SsrA-binding protein


A protein which orignally was called, in Escherichia coli, small protein B (gene smpB) binds specifically to the ssrA RNA (tmRNA) and is required for stable association of ssrA with ribosomes [1]. It is a hydrophilic protein of about 145 to 160 amino-acid residues.

As a signature pattern, we selected a conserved region in the N-terminal section.

Last update:

December 2001 / Pattern and text revised.


Technical section

PROSITE method (with tools and information) covered by this documentation:

SSRP, PS01317; SsrA-binding protein  (PATTERN)


1AuthorsKarzai A.W. Susskind M.M. Sauer R.T.
TitleSmpB, a unique RNA-binding protein essential for the peptide-tagging activity of SsrA (tmRNA).
SourceEMBO J. 18:3793-3799(1999).
PubMed ID10393194

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