ID A0A1Q5DM25_9ACTN Unreviewed; 548 AA.
AC A0A1Q5DM25;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 27-MAR-2024, entry version 21.
DE RecName: Full=Cytochrome bc1 complex cytochrome b subunit {ECO:0000256|ARBA:ARBA00016116};
DE EC=7.1.1.8 {ECO:0000256|ARBA:ARBA00012951};
DE AltName: Full=Cytochrome bc1 reductase complex subunit QcrB {ECO:0000256|ARBA:ARBA00029568};
GN ORFNames=AMK18_24545 {ECO:0000313|EMBL:OKI96827.1};
OS Streptomyces sp. CB01249.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1703929 {ECO:0000313|EMBL:OKI96827.1, ECO:0000313|Proteomes:UP000186839};
RN [1] {ECO:0000313|EMBL:OKI96827.1, ECO:0000313|Proteomes:UP000186839}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CB01249 {ECO:0000313|EMBL:OKI96827.1,
RC ECO:0000313|Proteomes:UP000186839};
RX PubMed=27999165; DOI=10.1128/mbio.02104-16;
RA Yan X., Ge H., Huang T., Hindra, Yang D., Teng Q., Crnovcic I., Li X.,
RA Rudolf J.D., Lohman J.R., Gansemans Y., Zhu X., Huang Y., Zhao L.X.,
RA Jiang Y., Van Nieuwerburgh F., Rader C., Duan Y., Shen B.;
RT "Strain Prioritization and Genome Mining for Enediyne Natural Products.";
RL MBio 7:e02104-e02116(2016).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a quinol + 2 Fe(III)-[cytochrome c](out) = a quinone + 2
CC Fe(II)-[cytochrome c](out) + 2 H(+)(out); Xref=Rhea:RHEA:11484,
CC Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:24646, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034,
CC ChEBI:CHEBI:132124; EC=7.1.1.8;
CC Evidence={ECO:0000256|ARBA:ARBA00029351};
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Evidence={ECO:0000256|ARBA:ARBA00001971};
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OKI96827.1}.
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DR EMBL; LISW01000006; OKI96827.1; -; Genomic_DNA.
DR RefSeq; WP_026171692.1; NZ_LISW01000006.1.
DR AlphaFoldDB; A0A1Q5DM25; -.
DR OrthoDB; 9804503at2; -.
DR Proteomes; UP000186839; Unassembled WGS sequence.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR InterPro; IPR005797; Cyt_b/b6_N.
DR InterPro; IPR027387; Cytb/b6-like_sf.
DR InterPro; IPR016174; Di-haem_cyt_TM.
DR PANTHER; PTHR19271; CYTOCHROME B; 1.
DR PANTHER; PTHR19271:SF16; CYTOCHROME B; 1.
DR Pfam; PF13631; Cytochrom_B_N_2; 1.
DR SUPFAM; SSF81342; Transmembrane di-heme cytochromes; 1.
DR PROSITE; PS51002; CYTB_NTER; 1.
PE 4: Predicted;
KW Membrane {ECO:0000256|SAM:Phobius};
KW Reference proteome {ECO:0000313|Proteomes:UP000186839};
KW Translocase {ECO:0000256|ARBA:ARBA00022967};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 52..76
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 120..141
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 153..173
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 185..206
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 218..243
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 272..293
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 338..362
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 382..401
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 421..442
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 24..250
FT /note="Cytochrome b/b6 N-terminal region profile"
FT /evidence="ECO:0000259|PROSITE:PS51002"
SQ SEQUENCE 548 AA; 61023 MW; F7A6B5D7D8084AEA CRC64;
MSTATNTPGA AAPGNRKAPA GERVADWADG RLGIYSLAKA NMRKIFPDHW SFMLGEICLY
SFIIIILTGV YLTLFFHPSM NEVVYHGPYE PMQGIRMSEA YASTLNISFD VRGGLLVRQI
HHWAAVIFLA GMFVHMMRVF FTGAYRKPRE INWLFGFLLF VLGMFTGFTG YSLPDDLLSG
TGVRFTQGAI LSTPIVGTYI SMFLFGGEFP GGDIIARFYS IHILLLPGIM LGLVVGHLIL
VFYHKHTQFA GPGKTNKNVV GMPLLPVYMA KAGGFFFLVF GFIAIIAAIA SINPIWAIGP
YRPDQVSTGA QPDWYMGFAE GFVRVMPGWE INLWGHTLVL GVFIPLVLFG VVLGALAMWP
FIESWITGDK REHHILDKPR NAPTRTALGV AWVTIYFVML IGGGNDIWAT HFSLSLNSIS
WFVRIAFFVG PVIAFVVTRR ICLGLQRRDK EKVLHGRESG LIKRLPHGEF VEVHEPLSPE
ARYALTAHEQ YQPLEIGPTV DENGVERKVS RITKVRARLS KSLYGEDSQI AKPTAEEYKE
ITSGHGHH
//
