PROSITE documentation PDOC00288
Ribosomal protein S19 signature


Ribosomal protein S19 is one of the proteins from the small ribosomal subunit. In Escherichia coli, S19 is known to form a complex with S13 that binds strongly to 16S ribosomal RNA. S19 belongs to a family of ribosomal proteins which, on the basis of sequence similarities [1,2], groups:

  • Eubacterial S19.
  • Algal and plant chloroplast S19.
  • Cyanelle S19.
  • Archaebacterial S19.
  • Plant mitochondrial S19.
  • Eukaryotic S15 ('rig' protein).

S19 is a protein of 88 to 144 amino-acid residues. Our signature pattern is based on the few conserved positions located in the C-terminal section of these proteins.

Last update:

April 2006 / Pattern revised.


Technical section

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

RIBOSOMAL_S19, PS00323; Ribosomal protein S19 signature  (PATTERN)


1AuthorsKitagawa M. Takasawa S. Kikuchi N. Itoh T. Teraoka H. Yamamoto H. Okamoto H.
Titlerig encodes ribosomal protein S15. The primary structure of mammalian ribosomal protein S15.
SourceFEBS Lett. 283:210-214(1991).
PubMed ID2044758

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

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