ID   CYBH_RHILV              Reviewed;         239 AA.
AC   P27648;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Probable Ni/Fe-hydrogenase B-type cytochrome subunit;
GN   Name=hupC;
OS   Rhizobium leguminosarum bv. viciae.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=387;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=UPM791;
RX   PubMed=1597428; DOI=10.1128/jb.174.12.4130-4139.1992;
RA   Hidalgo E., Palacios J.M., Murillo J., Ruiz-Argueso T.;
RT   "Nucleotide sequence and characterization of four additional genes of the
RT   hydrogenase structural operon from Rhizobium leguminosarum bv. viciae.";
RL   J. Bacteriol. 174:4130-4139(1992).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=B10;
RA   Brito B., Palacios J.M., Imperial J., Ruiz-Argueso T., Yang W.C.,
RA   Bisseling T., Schmitt H., Kerl V., Bauer T., Kokotek W., Lotz W.;
RT   "Organization of the hup-region and its differential transcription in non-
RT   symbiotic and symbiotic cells of Rhizobium leguminosarum bv. viciae B10.";
RL   Mol. Plant Microbe Interact. 8:235-240(1997).
CC   -!- FUNCTION: B-type cytochrome involved in electron transfer from
CC       hydrogenase to oxygen.
CC   -!- SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
CC   -!- SIMILARITY: Belongs to the HupC/HyaC/HydC family. {ECO:0000305}.
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DR   EMBL; X52974; CAA37150.1; -; Genomic_DNA.
DR   EMBL; Z36981; CAA85432.1; -; Genomic_DNA.
DR   PIR; A41892; A41892.
DR   RefSeq; WP_018517047.1; NZ_WIEJ01000010.1.
DR   AlphaFoldDB; P27648; -.
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:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR   InterPro; IPR011577; Cyt_b561_bac/Ni-Hgenase.
DR   InterPro; IPR016174; Di-haem_cyt_TM.
DR   InterPro; IPR000516; Ni-dep_Hydgase_cyt-B.
DR   Pfam; PF01292; Ni_hydr_CYTB; 1.
DR   PRINTS; PR00161; NIHGNASECYTB.
DR   SUPFAM; SSF81342; SSF81342; 1.
DR   TIGRFAMs; TIGR02125; CytB-hydogenase; 1.
DR   PROSITE; PS00882; NI_HGENASE_CYTB_1; 1.
DR   PROSITE; PS00883; NI_HGENASE_CYTB_2; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Electron transport; Heme; Iron; Membrane; Metal-binding;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..239
FT                   /note="Probable Ni/Fe-hydrogenase B-type cytochrome
FT                   subunit"
FT                   /id="PRO_0000201382"
FT   TRANSMEM        31..51
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        75..95
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        142..163
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        196..213
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   239 AA;  27869 MW;  1DA04BDABD39E887 CRC64;
     MTIHETLAAD AHGEKAIERQ SVYVYEAPVR IWHWINAFSI LTLALTGYFI GSPLPSVPGE
     ASANFLMGYI RFIHFAAGQL LAVFLILRVY WAFVGNVHAR QIFYVPFWSG RFWKEWLHEV
     GWYTFLVRQP KKYVGHNPLP QFTMFLMFTL PLLFMAITGF ALYSEGAGRD SWEYSLFGWV
     FSIWPNSQDI HTYHHLGMWV ILVFVMVHIY VAVREDIMSR QSIISSMISG ERLFKDRED