PROSITE documentation PDOC00311
Ribosomal protein S9 signature


Ribosomal protein S9 is one of the proteins from the small ribosomal subunit. It belongs to a family of ribosomal proteins which, on the basis of sequence similarities [1,2], groups:

  • Eubacterial S9.
  • Algal chloroplast S9.
  • Cyanelle S9.
  • Archaebacterial S9.
  • Mammalian S16.
  • Plant S16.
  • Yeast mitochondrial ribosomal S9.

As a signature pattern, we selected a conserved region containing many charged residues and located in the central section of these proteins.

Last update:

April 2006 / Pattern revised.


Technical section

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

RIBOSOMAL_S9, PS00360; Ribosomal protein S9 signature  (PATTERN)


1AuthorsChan Y.-L. Paz V. Olvera J. Wool I.G.
TitleThe primary structure of rat ribosomal protein S16.
SourceFEBS Lett. 263:85-88(1990).
PubMed ID2332055

2AuthorsOtaka E. Hashimoto T. Mizuta K.
SourceProtein Seq. Data Anal. 5:285-300(1993).

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