AC   MF_00502;
DC   Protein; auto
TR   HAMAP; MF_00502; -; 1; level=0
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Names: Ribosomal_bL31_2
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ID   RL31B
DE   RecName: Full=Large ribosomal subunit protein bL31B;
GN   Name=rpmE2;
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CC   -!- SUBUNIT: Part of the 50S ribosomal subunit.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL31 family.
CC       Type B subfamily.
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DR   Pfam; PF01197; Ribosomal_L31; 1; trigger=no
DR   PRINTS; PR01249; RIBOSOMALL31; 1; trigger=no
DR   NCBIfam; TIGR00105; L31; 1; trigger=no
DR   PROSITE; PS01143; RIBOSOMAL_L31; 1; trigger=no
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KW   Ribonucleoprotein
KW   Ribosomal protein
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GO   GO:0006412; P:translation
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FT   None
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Size: 80-117;
Related: MF_00501;
Template: O34967;
Scope:
 Bacteria
Fusion:
 Nter: None
 Cter: None
Duplicate: in ECO57, STRAW, STRCO
Plasmid: None
Comments: In some bacteria, for example E.coli and B.subtilis, there are
 paralogous RL31 proteins. In most bacteria with both proteins the protein
 that corresponds to the other family (RL31, MF_00501, rpmE) is thought to
 be able to bind zinc, while this member (RL31B, rpmE2) is not able to bind
 zinc. It has been suggested based on this observation and experiments in B.
 subtilis that the non-zinc-binding protein will only be made under
 conditions of zinc-starvation, allowing the cell to economize on the trace
 metal, see:
 PubMed=11574053;
 Makarova K.S., Ponomarev V.A., Koonin E.V.;
 "Two C or not two C: recurrent disruption of Zn-ribbons, gene
 duplication, lineage-specific gene loss, and horizontal gene transfer
 in evolution of bacterial ribosomal proteins.";
 Genome Biol. 2:RESEARCH 0033-RESEARCH 0033(2001).
 and
 PubMed=12904577; DOI=10.1073/pnas.1733691100;
 Panina E.M., Mironov A.A., Gelfand M.S.;
 "Comparative genomics of bacterial zinc regulons: enhanced ion
 transport, pathogenesis, and rearrangement of ribosomal proteins.";
 Proc. Natl. Acad. Sci. U.S.A. 100:9912-9917(2003).
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# Revision 1.29 2023/09/22
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