ID   DSBB_NITOC              Reviewed;         169 AA.
AC   Q3J7Z4;
DT   21-AUG-2007, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=Disulfide bond formation protein B {ECO:0000255|HAMAP-Rule:MF_00286};
DE   AltName: Full=Disulfide oxidoreductase {ECO:0000255|HAMAP-Rule:MF_00286};
GN   Name=dsbB {ECO:0000255|HAMAP-Rule:MF_00286}; OrderedLocusNames=Noc_2599;
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: Required for disulfide bond formation in some periplasmic
CC       proteins. Acts by oxidizing the DsbA protein. {ECO:0000255|HAMAP-
CC       Rule:MF_00286}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00286}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00286}.
CC   -!- SIMILARITY: Belongs to the DsbB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00286}.
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DR   EMBL; CP000127; ABA59052.1; -; Genomic_DNA.
DR   RefSeq; WP_004164034.1; NC_007484.1.
DR   AlphaFoldDB; Q3J7Z4; -.
DR   SMR; Q3J7Z4; -.
DR   STRING; 323261.Noc_2599; -.
DR   EnsemblBacteria; ABA59052; ABA59052; Noc_2599.
DR   KEGG; noc:Noc_2599; -.
DR   eggNOG; COG1495; Bacteria.
DR   HOGENOM; CLU_098660_1_1_6; -.
DR   OMA; GGALYMQ; -.
DR   OrthoDB; 1859420at2; -.
DR   Proteomes; UP000006838; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0015035; F:protein-disulfide reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006457; P:protein folding; IEA:InterPro.
DR   Gene3D; 1.20.1550.10; -; 1.
DR   HAMAP; MF_00286; DsbB; 1.
DR   InterPro; IPR003752; DiS_bond_form_DsbB/BdbC.
DR   InterPro; IPR022920; Disulphide_bond_form_DsbB.
DR   InterPro; IPR023380; DsbB-like_sf.
DR   Pfam; PF02600; DsbB; 1.
DR   SUPFAM; SSF158442; SSF158442; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Chaperone; Disulfide bond;
KW   Electron transport; Membrane; Oxidoreductase; Redox-active center;
KW   Reference proteome; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..169
FT                   /note="Disulfide bond formation protein B"
FT                   /id="PRO_0000298373"
FT   TOPO_DOM        1..8
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TRANSMEM        9..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TOPO_DOM        26..43
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TRANSMEM        44..60
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TOPO_DOM        61..67
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TRANSMEM        68..84
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TOPO_DOM        85..141
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TRANSMEM        142..160
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   TOPO_DOM        161..169
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   DISULFID        35..38
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
FT   DISULFID        100..127
FT                   /note="Redox-active"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00286"
SQ   SEQUENCE   169 AA;  18351 MW;  751D82FCA43FC748 CRC64;
     MRLSVRWVFF LGFFLCALML AIAGYFQFVE NLEPCPLCIL SRVAVLAIGG VFLVAALHNP
     KSWGIKVYAL LGFVVTLIGI GITGRHVWLQ SLPADQVPAC GPGLNFMLDN FPLTETLELV
     FRGSGECAEV QWSFLGLTIP GWTLVAFLFL GVISLWQMGR TGGGAGKLT