{PDOC00055}
{PS00056; RIBOSOMAL_S17}
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* Ribosomal protein S17 signature *
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Ribosomal protein S17 is one of the proteins from the small ribosomal subunit.
In Escherichia  coli,  S17  is known to bind specifically to the 5' end of 16S
ribosomal RNA  and is thought to be involved in the recognition of termination
codons. It  belongs  to  a family of ribosomal proteins which, on the basis of
sequence similarities [1,2,3], groups:

 - Eubacterial S17.
 - Plant chloroplast S17 (nuclear encoded).
 - Red algal chloroplast S17.
 - Cyanelle S17.
 - Archaebacterial S17.
 - Mammalian and plant cytoplasmic S11.
 - Yeast S18a and S18b (RP41; YS12).

As a  signature pattern, we selected the best conserved regions located in the
C-terminal section of these proteins.

-Consensus pattern: G-D-x-[LIV]-x-[LIVA]-x-[QEK]-x-[RK]-P-[LIV]-S
-Sequences known to belong to this class detected by the pattern: ALL.
-Other sequence(s) detected in Swiss-Prot: NONE.
-Last update: November 1997 / Pattern and text revised.

[ 1] Gantt J.S., Thompson M.D.
     "Plant cytosolic ribosomal protein S11 and chloroplast ribosomal
     protein CS17. Their primary structures and evolutionary
     relationships."
     J. Biol. Chem. 265:2763-2767(1990).
     PubMed=2406240
[ 2] Herfurth E., Hirano H., Wittmann-Liebold B.
     "The amino-acid sequences of the Bacillus stearothermophilus ribosomal
     proteins S17 and S21 and their comparison to homologous proteins of
     other ribosomes."
     Biol. Chem. Hoppe-Seyler 372:955-961(1991).
     PubMed=1772592
[ 3] Otaka E., Hashimoto T., Mizuta K.
     Protein Seq. Data Anal. 5:285-300(1993).

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