ID   PQQB_PSEPH              Reviewed;         303 AA.
AC   P55172;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 70.
DE   RecName: Full=Coenzyme PQQ synthesis protein B;
DE   AltName: Full=Pyrroloquinoline quinone biosynthesis protein B;
GN   Name=pqqB;
OS   Pseudomonas protegens (strain DSM 19095 / LMG 27888 / CFBP 6595 / CHA0).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=1124983;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=DSM 19095 / LMG 27888 / CFBP 6595 / CHA0;
RX   PubMed=8526497; DOI=10.1128/aem.61.11.3856-3864.1995;
RA   Schnider U., Keel C., Defago G., Haas D.;
RT   "Tn5-directed cloning of pqq genes from Pseudomonas fluorescens CHA0:
RT   mutational inactivation of the genes results in overproduction of the
RT   antibiotic pyoluteorin.";
RL   Appl. Environ. Microbiol. 61:3856-3864(1995).
CC   -!- FUNCTION: May be involved in the transport of PQQ or its precursor to
CC       the periplasm. {ECO:0000250}.
CC   -!- PATHWAY: Cofactor biosynthesis; pyrroloquinoline quinone biosynthesis.
CC   -!- SIMILARITY: Belongs to the PqqB family. {ECO:0000305}.
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DR   EMBL; X87299; CAA60733.1; -; Genomic_DNA.
DR   PIR; S58243; S58243.
DR   RefSeq; WP_011063849.1; NZ_LS999205.1.
DR   AlphaFoldDB; P55172; -.
DR   SMR; P55172; -.
DR   STRING; 1124983.PFLCHA0_c56260; -.
DR   GeneID; 57478624; -.
DR   PATRIC; fig|1124983.3.peg.5651; -.
DR   eggNOG; COG1235; Bacteria.
DR   UniPathway; UPA00539; -.
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; Transport.
FT   CHAIN           1..303
FT                   /note="Coenzyme PQQ synthesis protein B"
FT                   /id="PRO_0000220004"
SQ   SEQUENCE   303 AA;  33208 MW;  8D958BD1A9CD32F9 CRC64;
     MFVQILGSAA GGGFPQWNCN CVNCAGFRDG SLRAQARTQS SIAISDDGVN WVLCNASPDI
     RAQLQSFAPM QPGRALRDTG IGAIILMDSQ IDHTTGLLSL REGCPHQVWC TDMVHEDLST
     GFPLFKMLSH WNGGLSWNRI ELDQSFSIPA CPNLRFTPLP LRSAAPPYSP HRFDPHPGDN
     IGLIVEDLRS GGKLFYAPGL GKVDAPLLEI MAASDVLLVD GTLWEDDEMQ RRGVGTRTGR
     EMGHLAQNGP GGMLEVLEQL PRQRKVLIHI NNTNPILDED SAERAELVRR KVEVAYDGMS
     IEL