ID   PQQA_RHIME              Reviewed;          31 AA.
AC   Q9EXV2;
DT   16-JUN-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2001, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Coenzyme PQQ synthesis protein A;
DE   AltName: Full=Putative pyrroloquinoline quinone synthesis protein A;
GN   Name=pqqA; OrderedLocusNames=RB0197; ORFNames=SMb20204;
OS   Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium
OS   meliloti).
OG   Plasmid pSymB (megaplasmid 2).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX   NCBI_TaxID=266834;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=1021;
RA   Finan T.M., Aneja P., Chain P., Napper K., Golding B.;
RT   "Mineral phosphate solubilization in Sinorhizobium meliloti.";
RL   Submitted (OCT-2000) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1021;
RX   PubMed=11481431; DOI=10.1073/pnas.161294698;
RA   Finan T.M., Weidner S., Wong K., Buhrmester J., Chain P., Vorhoelter F.J.,
RA   Hernandez-Lucas I., Becker A., Cowie A., Gouzy J., Golding B., Puehler A.;
RT   "The complete sequence of the 1,683-kb pSymB megaplasmid from the N2-fixing
RT   endosymbiont Sinorhizobium meliloti.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:9889-9894(2001).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1021;
RX   PubMed=11474104; DOI=10.1126/science.1060966;
RA   Galibert F., Finan T.M., Long S.R., Puehler A., Abola P., Ampe F.,
RA   Barloy-Hubler F., Barnett M.J., Becker A., Boistard P., Bothe G.,
RA   Boutry M., Bowser L., Buhrmester J., Cadieu E., Capela D., Chain P.,
RA   Cowie A., Davis R.W., Dreano S., Federspiel N.A., Fisher R.F., Gloux S.,
RA   Godrie T., Goffeau A., Golding B., Gouzy J., Gurjal M., Hernandez-Lucas I.,
RA   Hong A., Huizar L., Hyman R.W., Jones T., Kahn D., Kahn M.L., Kalman S.,
RA   Keating D.H., Kiss E., Komp C., Lelaure V., Masuy D., Palm C., Peck M.C.,
RA   Pohl T.M., Portetelle D., Purnelle B., Ramsperger U., Surzycki R.,
RA   Thebault P., Vandenbol M., Vorhoelter F.J., Weidner S., Wells D.H.,
RA   Wong K., Yeh K.-C., Batut J.;
RT   "The composite genome of the legume symbiont Sinorhizobium meliloti.";
RL   Science 293:668-672(2001).
CC   -!- FUNCTION: Required for coenzyme pyrroloquinoline quinone (PQQ)
CC       biosynthesis. PQQ is probably formed by cross-linking a specific
CC       glutamate to a specific tyrosine residue and excising these residues
CC       from the peptide (By similarity). {ECO:0000250}.
CC   -!- PATHWAY: Cofactor biosynthesis; pyrroloquinoline quinone biosynthesis.
CC   -!- SIMILARITY: Belongs to the PqqA family. {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AY013584; AAG42538.1; -; Genomic_DNA.
DR   EMBL; AL591985; CAC48597.1; -; Genomic_DNA.
DR   PIR; E95866; E95866.
DR   RefSeq; NP_436737.1; NC_003078.1.
DR   RefSeq; WP_003528714.1; NC_003078.1.
DR   AlphaFoldDB; Q9EXV2; -.
DR   STRING; 266834.SM_b20204; -.
DR   EnsemblBacteria; CAC48597; CAC48597; SM_b20204.
DR   GeneID; 61612437; -.
DR   KEGG; sme:SM_b20204; -.
DR   HOGENOM; CLU_219399_1_0_5; -.
DR   UniPathway; UPA00539; -.
DR   PRO; PR:Q9EXV2; -.
DR   Proteomes; UP000001976; Plasmid pSymB.
DR   GO; GO:0018189; P:pyrroloquinoline quinone biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00656; PQQ_syn_PqqA; 1.
DR   InterPro; IPR011725; PQQ_synth_PqqA.
DR   Pfam; PF08042; PqqA; 1.
DR   TIGRFAMs; TIGR02107; PQQ_syn_pqqA; 1.
PE   3: Inferred from homology;
KW   Plasmid; PQQ biosynthesis; Reference proteome.
FT   CHAIN           1..31
FT                   /note="Coenzyme PQQ synthesis protein A"
FT                   /id="PRO_0000220318"
FT   CROSSLNK        16..20
FT                   /note="Pyrroloquinoline quinone (Glu-Tyr)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   31 AA;  3567 MW;  F2C6920C8568BF99 CRC64;
     MAWHKPKFIE VSCAMEITRY APADGDEPIL F