{PDOC00560}
{PS00651; RIBOSOMAL_L9}
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* Ribosomal protein L9 signature *
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Ribosomal protein L9 is one  of the proteins from the large ribosomal subunit.
In Escherichia coli, L9 is known to bind directly to the 23S rRNA.  It belongs
to a family of ribosomal proteins which, on the basis of sequence similarities
[1,2], groups:

 - Eubacterial L9.
 - Cyanobacterial L9.
 - Plant chloroplast L9 (nuclear-encoded).
 - Red algal chloroplast L9.

As a signature pattern, we have selected a conserved region, located in the N-
terminal section of these proteins.

-Consensus pattern: G-x(2)-[GNF]-x(4)-[VAI]-x(2)-G-[FY]-x(2)-[NH]-[FYWL]-L-
                    x(5)-[GA]-x(3)-[STNG]
-Sequences known to belong to this class detected by the pattern: ALL.
-Other sequence(s) detected in Swiss-Prot: NONE.
-Last update: December 2004 / Pattern and text revised.

[ 1] Hoffman D.W., Davies C., Gerchman S.E., Kycia J.H., Porter S.J.,
     White S.W., Ramakrishnan V.
     "Crystal structure of prokaryotic ribosomal protein L9: a bi-lobed
     RNA-binding protein."
     EMBO J. 13:205-212(1994).
     PubMed=8306963;
[ 2] Otaka E., Hashimoto T., Mizuta K., Suzuki K.
     Protein Seq. Data Anal. 5:301-313(1993).

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