ID   PQQB_NITOC              Reviewed;         309 AA.
AC   Q3J7X3;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 82.
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=Noc_2620;
OS   Nitrosococcus oceani (strain ATCC 19707 / BCRC 17464 / JCM 30415 / NCIMB
OS   11848 / C-107).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC   Nitrosococcus.
OX   NCBI_TaxID=323261;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 19707 / BCRC 17464 / JCM 30415 / NCIMB 11848 / C-107;
RX   PubMed=16957257; DOI=10.1128/aem.00463-06;
RA   Klotz M.G., Arp D.J., Chain P.S.G., El-Sheikh A.F., Hauser L.J.,
RA   Hommes N.G., Larimer F.W., Malfatti S.A., Norton J.M., Poret-Peterson A.T.,
RA   Vergez L.M., Ward B.B.;
RT   "Complete genome sequence of the marine, chemolithoautotrophic, ammonia-
RT   oxidizing bacterium Nitrosococcus oceani ATCC 19707.";
RL   Appl. Environ. Microbiol. 72:6299-6315(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; CP000127; ABA59073.1; -; Genomic_DNA.
DR   RefSeq; WP_002814312.1; NC_007484.1.
DR   AlphaFoldDB; Q3J7X3; -.
DR   SMR; Q3J7X3; -.
DR   STRING; 323261.Noc_2620; -.
DR   EnsemblBacteria; ABA59073; ABA59073; Noc_2620.
DR   KEGG; noc:Noc_2620; -.
DR   eggNOG; COG1235; Bacteria.
DR   HOGENOM; CLU_061120_0_0_6; -.
DR   OMA; FYIPGCA; -.
DR   OrthoDB; 1712770at2; -.
DR   UniPathway; UPA00539; -.
DR   Proteomes; UP000006838; 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..309
FT                   /note="Coenzyme PQQ synthesis protein B"
FT                   /id="PRO_1000061650"
SQ   SEQUENCE   309 AA;  34053 MW;  451AC89CFE2BA3A2 CRC64;
     MLIHVLGSGA GGGFPQWNCN CHNCNRLRKG NFKGQARTQS SIAASTNGTD WVLFNASPDI
     LGQLQHFPAI QPGRALRDTG IRGIVLLDSQ IDHTTGLLML REHHRPLDVY CTESVHQDLT
     TGNPLFKVLE HYCTVNWHPL QLPQGDAPGE GFQVEGIEGL RLTPVPLRSE APPYSPHRHN
     YHVGDTIGLW LEDPATQKSL FYAPGLGQIE DHVLSLMEKA DCLLIDGTFW TEDEMERAGI
     TQKRATEMGH LPQSGQGGMI SVLAPLTSPW KILIHINNTN PILDEESLER AQLEAAGIEV
     AFDGMDIIL