ID   PQQB_AZOSB              Reviewed;         304 AA.
AC   A1K4P9;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Coenzyme PQQ synthesis protein B {ECO:0000255|HAMAP-Rule:MF_00653};
DE   AltName: Full=Pyrroloquinoline quinone biosynthesis protein B {ECO:0000255|HAMAP-Rule:MF_00653};
GN   Name=pqqB {ECO:0000255|HAMAP-Rule:MF_00653}; OrderedLocusNames=azo1187;
OS   Azoarcus sp. (strain BH72).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC   Azoarcus.
OX   NCBI_TaxID=418699;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BH72;
RX   PubMed=17057704; DOI=10.1038/nbt1243;
RA   Krause A., Ramakumar A., Bartels D., Battistoni F., Bekel T., Boch J.,
RA   Boehm M., Friedrich F., Hurek T., Krause L., Linke B., McHardy A.C.,
RA   Sarkar A., Schneiker S., Syed A.A., Thauer R., Vorhoelter F.-J.,
RA   Weidner S., Puehler A., Reinhold-Hurek B., Kaiser O., Goesmann A.;
RT   "Complete genome of the mutualistic, N2-fixing grass endophyte Azoarcus sp.
RT   strain BH72.";
RL   Nat. Biotechnol. 24:1385-1391(2006).
CC   -!- FUNCTION: May be involved in the transport of PQQ or its precursor to
CC       the periplasm. {ECO:0000255|HAMAP-Rule:MF_00653}.
CC   -!- PATHWAY: Cofactor biosynthesis; pyrroloquinoline quinone biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00653}.
CC   -!- SIMILARITY: Belongs to the PqqB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00653}.
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DR   EMBL; AM406670; CAL93804.1; -; Genomic_DNA.
DR   RefSeq; WP_011764920.1; NC_008702.1.
DR   AlphaFoldDB; A1K4P9; -.
DR   SMR; A1K4P9; -.
DR   STRING; 62928.azo1187; -.
DR   EnsemblBacteria; CAL93804; CAL93804; azo1187.
DR   KEGG; azo:azo1187; -.
DR   eggNOG; COG1235; Bacteria.
DR   HOGENOM; CLU_061120_0_0_4; -.
DR   OMA; FYIPGCA; -.
DR   OrthoDB; 1712770at2; -.
DR   UniPathway; UPA00539; -.
DR   Proteomes; UP000002588; Chromosome.
DR   GO; GO:0018189; P:pyrroloquinoline quinone biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd16274; PQQB-like_MBL-fold; 1.
DR   Gene3D; 3.60.15.10; -; 1.
DR   HAMAP; MF_00653; PQQ_syn_PqqB; 1.
DR   InterPro; IPR001279; Metallo-B-lactamas.
DR   InterPro; IPR011842; PQQ_synth_PqqB.
DR   InterPro; IPR036866; RibonucZ/Hydroxyglut_hydro.
DR   Pfam; PF12706; Lactamase_B_2; 1.
DR   SUPFAM; SSF56281; SSF56281; 1.
DR   TIGRFAMs; TIGR02108; PQQ_syn_pqqB; 1.
PE   3: Inferred from homology;
KW   PQQ biosynthesis; Reference proteome; Transport.
FT   CHAIN           1..304
FT                   /note="Coenzyme PQQ synthesis protein B"
FT                   /id="PRO_1000061647"
SQ   SEQUENCE   304 AA;  32842 MW;  6E41BE8872D08E02 CRC64;
     MKVRVLGSAA GGGFPQWNCN CPNCDGLRRG TVRARARTQS SIAVTGDDEN WVLFNASPDV
     LQQLREAPEL QPARALRDTA IRAIVLIDAQ IDHTTGLLML REHRQPHALW CTAPVREDLS
     TGNPLFGVLG HYCGLDLNEI PLQGGFDIAG VPGVGFAALP LTSNAPPYSP RRDKPVPGDN
     IGVTLTDTRS GRRLFYAPGL GEMEPHVWAA MQAADCVLVD GTLWTDDEMI RLGASSKTSR
     AMGHLPQSGP GGMLEWLDRL PASTRKVLIH INNTNPILDE DSPQRAELAA HGVEVAWDGM
     VLSL