ID A0A239A1W8_9ACTN Unreviewed; 553 AA.
AC A0A239A1W8;
DT 25-OCT-2017, integrated into UniProtKB/TrEMBL.
DT 25-OCT-2017, sequence version 1.
DT 27-MAR-2024, entry version 20.
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=SAMN05216276_100145 {ECO:0000313|EMBL:SNR89088.1};
OS Streptosporangium subroseum.
OC Bacteria; Actinomycetota; Actinomycetes; Streptosporangiales;
OC Streptosporangiaceae; Streptosporangium.
OX NCBI_TaxID=106412 {ECO:0000313|EMBL:SNR89088.1, ECO:0000313|Proteomes:UP000198282};
RN [1] {ECO:0000313|EMBL:SNR89088.1, ECO:0000313|Proteomes:UP000198282}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 4.2132 {ECO:0000313|EMBL:SNR89088.1,
RC ECO:0000313|Proteomes:UP000198282};
RA Kim H.J., Triplett B.A.;
RL Submitted (JUN-2017) to the EMBL/GenBank/DDBJ databases.
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};
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DR EMBL; FZOD01000001; SNR89088.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A239A1W8; -.
DR OrthoDB; 9804503at2; -.
DR Proteomes; UP000198282; 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:UP000198282};
KW Translocase {ECO:0000256|ARBA:ARBA00022967};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 46..65
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 111..130
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 142..162
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 174..195
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 207..232
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 263..286
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 334..355
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 414..432
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 13..239
FT /note="Cytochrome b/b6 N-terminal region profile"
FT /evidence="ECO:0000259|PROSITE:PS51002"
FT REGION 485..508
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 523..553
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 527..543
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 553 AA; 60527 MW; 4C2CBD01040C6209 CRC64;
MSVGPVPKPI AGVSNFIDER IGAGNFLKRN LRKIFPDHWS FLLGEVALYS FVILLLTGTF
LTFFFRPSMG DVVYNGSYQP LQGITMSEAY ASSLHISFDV RGGLLMRQMH HWAALLFIAG
LMVHALRVFF TGAYRKPREL NWLIGVVLFT LALFEGLTGY SLPDDLLSGA GLRITQGVIL
SLPVVGTWLS FFLFGGEYPG ADVISRFYSI HILLIPGLLL ALITAHLILM WVQKHTQMPG
KGRTNENVVG GPFYPSFMAK SGAYFMFTFG VIALLGTAAQ INPIWLFGPY TPSDISAGSQ
PDFYMGFLEG SLRLMPAWEI NLFGTAGGTL PLNVLIPALV PLGIILTGMA LYPFVERWVT
GDNREHHVVD RPRNNPHRTS IGMTAITFYG LLWLMGANDE IAAFFQVSLN VTTYVGRVLI
IVGPILAYVI TYRICLGLQR IDAATIDHGV ETGVIKRLPD GEYIEVHAPP DPGIEARVRD
KKPVPIIAGA DGDTPDGDGI PSEKMRHPLG RLRAKMSRAY GGEKIALTDG HGEDQEKHAA
VGPGEDDTSS PAR
//
