ID A0A3N1NTQ8_9GAMM Unreviewed; 745 AA.
AC A0A3N1NTQ8;
DT 13-FEB-2019, integrated into UniProtKB/TrEMBL.
DT 13-FEB-2019, sequence version 1.
DT 27-MAR-2024, entry version 19.
DE RecName: Full=Cytochrome b {ECO:0000256|RuleBase:RU003385};
GN ORFNames=EDC38_0137 {ECO:0000313|EMBL:ROQ19553.1};
OS Marinimicrobium koreense.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC Cellvibrionaceae; Marinimicrobium.
OX NCBI_TaxID=306545 {ECO:0000313|EMBL:ROQ19553.1, ECO:0000313|Proteomes:UP000273643};
RN [1] {ECO:0000313|EMBL:ROQ19553.1, ECO:0000313|Proteomes:UP000273643}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16974 {ECO:0000313|EMBL:ROQ19553.1,
RC ECO:0000313|Proteomes:UP000273643};
RA Goeker M.;
RT "Genomic Encyclopedia of Type Strains, Phase IV (KMG-IV): sequencing the
RT most valuable type-strain genomes for metagenomic binning, comparative
RT biology and taxonomic classification.";
RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Component of the ubiquinol-cytochrome c reductase complex
CC (complex III or cytochrome b-c1 complex), which is a respiratory chain
CC that generates an electrochemical potential coupled to ATP synthesis.
CC {ECO:0000256|RuleBase:RU003385}.
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Evidence={ECO:0000256|RuleBase:RU003385};
CC Note=Binds 2 heme groups non-covalently.
CC {ECO:0000256|RuleBase:RU003385};
CC -!- COFACTOR:
CC Name=heme c; Xref=ChEBI:CHEBI:61717;
CC Evidence={ECO:0000256|PIRSR:PIRSR602326-1};
CC Note=Binds 1 heme c group covalently per subunit.
CC {ECO:0000256|PIRSR:PIRSR602326-1};
CC -!- SUBUNIT: The main subunits of complex b-c1 are: cytochrome b,
CC cytochrome c1 and the Rieske protein. {ECO:0000256|ARBA:ARBA00011649,
CC ECO:0000256|RuleBase:RU003385}.
CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi-
CC pass membrane protein {ECO:0000256|ARBA:ARBA00004141}.
CC -!- SIMILARITY: Belongs to the cytochrome b family.
CC {ECO:0000256|RuleBase:RU003385}.
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:ROQ19553.1}.
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DR EMBL; RJUK01000001; ROQ19553.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A3N1NTQ8; -.
DR OrthoDB; 9804503at2; -.
DR Proteomes; UP000273643; Unassembled WGS sequence.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR CDD; cd00284; Cytochrome_b_N; 1.
DR Gene3D; 1.10.760.10; Cytochrome c-like domain; 1.
DR InterPro; IPR005798; Cyt_b/b6_C.
DR InterPro; IPR036150; Cyt_b/b6_C_sf.
DR InterPro; IPR005797; Cyt_b/b6_N.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
DR InterPro; IPR002326; Cyt_c1.
DR InterPro; IPR027387; Cytb/b6-like_sf.
DR InterPro; IPR048259; Cytochrome_b_N_euk/bac.
DR InterPro; IPR016174; Di-haem_cyt_TM.
DR PANTHER; PTHR19271; CYTOCHROME B; 1.
DR PANTHER; PTHR19271:SF16; CYTOCHROME B; 1.
DR Pfam; PF00032; Cytochrom_B_C; 1.
DR Pfam; PF02167; Cytochrom_C1; 1.
DR Pfam; PF00033; Cytochrome_B; 1.
DR PRINTS; PR00603; CYTOCHROMEC1.
DR SUPFAM; SSF81648; a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase); 1.
DR SUPFAM; SSF46626; Cytochrome c; 1.
DR SUPFAM; SSF81342; Transmembrane di-heme cytochromes; 1.
DR PROSITE; PS51003; CYTB_CTER; 1.
DR PROSITE; PS51002; CYTB_NTER; 1.
DR PROSITE; PS51007; CYTC; 1.
PE 3: Inferred from homology;
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|RuleBase:RU003385};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRSR:PIRSR602326-1};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRSR:PIRSR602326-1};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRSR:PIRSR602326-1};
KW Reference proteome {ECO:0000313|Proteomes:UP000273643};
KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660,
KW ECO:0000256|RuleBase:RU003385};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU003385};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU003385}.
FT TRANSMEM 36..58
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 88..109
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 121..142
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 148..166
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 187..209
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 248..273
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 293..311
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 317..337
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 349..368
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 380..398
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 410..430
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 442..462
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 483..503
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 718..736
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 7..219
FT /note="Cytochrome b/b6 N-terminal region profile"
FT /evidence="ECO:0000259|PROSITE:PS51002"
FT DOMAIN 229..410
FT /note="Cytochrome b/b6 C-terminal region profile"
FT /evidence="ECO:0000259|PROSITE:PS51003"
FT DOMAIN 525..708
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
FT BINDING 538
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR602326-1"
FT BINDING 541
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR602326-1"
FT BINDING 542
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR602326-1"
SQ SEQUENCE 745 AA; 84054 MW; 3FA8E1C51D134FFE CRC64;
MNWLTGLWQW VDQRLPVQRA WDTHMGNYYA PKNFNFWYFF GVLSLLVLVN QLVTGIWLTM
NYTPTAEGAF ASVEYIMRDV EYGWILRYMH STGASAFFVV VYLHMFRGLM YGSYKAPREL
VWIFGMTIYL VLMAEAFMGY VLPWGQMSYW GAQVIVSLFG AIPVIGEDLV QWIRGDYLIS
GITLNRFFAL HVVALPIVLL GLVVLHILAL HEVGSNNPDG VDIKKNKDEN GIPKDGVQFH
PYYTVHDLVG ITVFLFAFCF VMFFMPEMGG FFLEYANFEE ANNLKTPEHI APVWYFTPFY
AILRAVTIEI GPLSAKFLGL IAMGAAIAIL FVLPWLDRAK ARSMRYKGHI PRVMLMVFAA
MFVVLGYLGV KSPTTGRTVL SQLATVFYFA YFITMPIWTS SRPPEQRSQI ARVLSFAICW
GFALIFLVMA LNGITGDSDV PVFLRLFGLV LAAVFAVLPW LADRDSEHPV PERVQMKGLP
LRLVLGGLAL FAVLVVVPIK AVGAGAGGCG SIPCDIMEPD LDNKESLQRG AKYFVNYCMG
CHSAKFSRYE RVADDLGIPH DVARNNLIFG DQEIGSLMTT SMTKEQGKQW FGVQPPDLTL
VARSRNPEWL YTYLRNFYKD ESRPFGVNNR VFENVGMPHV MLDLQGLLEC SAGPQLDSHG
HIVRDSAGNP VMDEECGSLV EGDIEGSLSQ EEFDQVIYDL VNFLEYLGEP AAMDRERVGI
FVLLFLSVLF VFAYLLNREY WKGIH
//
