ID A0A0L0D7M3_THETB Unreviewed; 304 AA.
AC A0A0L0D7M3;
DT 11-NOV-2015, integrated into UniProtKB/TrEMBL.
DT 11-NOV-2015, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=NADH-cytochrome b5 reductase {ECO:0000256|RuleBase:RU361226};
DE EC=1.6.2.2 {ECO:0000256|RuleBase:RU361226};
GN ORFNames=AMSG_03737 {ECO:0000313|EMBL:KNC47303.1};
OS Thecamonas trahens ATCC 50062.
OC Eukaryota; Apusozoa; Apusomonadida; Apusomonadidae; Thecamonas.
OX NCBI_TaxID=461836 {ECO:0000313|EMBL:KNC47303.1, ECO:0000313|Proteomes:UP000054408};
RN [1] {ECO:0000313|EMBL:KNC47303.1, ECO:0000313|Proteomes:UP000054408}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 50062 {ECO:0000313|EMBL:KNC47303.1,
RC ECO:0000313|Proteomes:UP000054408};
RG The Broad Institute Genome Sequencing Platform;
RA Russ C., Cuomo C., Shea T., Young S.K., Zeng Q., Koehrsen M., Haas B.,
RA Borodovsky M., Guigo R., Alvarado L., Berlin A., Bochicchio J.,
RA Borenstein D., Chapman S., Chen Z., Freedman E., Gellesch M., Goldberg J.,
RA Griggs A., Gujja S., Heilman E., Heiman D., Hepburn T., Howarth C., Jen D.,
RA Larson L., Mehta T., Park D., Pearson M., Roberts A., Saif S., Shenoy N.,
RA Sisk P., Stolte C., Sykes S., Thomson T., Walk T., White J., Yandava C.,
RA Burger G., Gray M.W., Holland P.W.H., King N., Lang F.B.F., Roger A.J.,
RA Ruiz-Trillo I., Lander E., Nusbaum C.;
RT "The Genome Sequence of Thecamonas trahens ATCC 50062.";
RL Submitted (MAY-2010) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 Fe(III)-[cytochrome b5] + NADH = 2 Fe(II)-[cytochrome b5] +
CC H(+) + NAD(+); Xref=Rhea:RHEA:46680, Rhea:RHEA-COMP:10438, Rhea:RHEA-
CC COMP:10439, ChEBI:CHEBI:15378, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.6.2.2;
CC Evidence={ECO:0000256|RuleBase:RU361226};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|ARBA:ARBA00001974,
CC ECO:0000256|PIRSR:PIRSR601834-1, ECO:0000256|RuleBase:RU361226};
CC -!- SIMILARITY: Belongs to the flavoprotein pyridine nucleotide cytochrome
CC reductase family. {ECO:0000256|RuleBase:RU361226}.
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DR EMBL; GL349446; KNC47303.1; -; Genomic_DNA.
DR RefSeq; XP_013759644.1; XM_013904190.1.
DR AlphaFoldDB; A0A0L0D7M3; -.
DR STRING; 461836.A0A0L0D7M3; -.
DR EnsemblProtists; KNC47303; KNC47303; AMSG_03737.
DR GeneID; 25563314; -.
DR eggNOG; KOG0534; Eukaryota.
DR OrthoDB; 979728at2759; -.
DR Proteomes; UP000054408; Unassembled WGS sequence.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0004128; F:cytochrome-b5 reductase activity, acting on NAD(P)H; IEA:UniProtKB-EC.
DR CDD; cd06183; cyt_b5_reduct_like; 1.
DR Gene3D; 3.40.50.80; Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module; 1.
DR Gene3D; 2.40.30.10; Translation factors; 1.
DR InterPro; IPR001834; CBR-like.
DR InterPro; IPR008333; Cbr1-like_FAD-bd_dom.
DR InterPro; IPR017927; FAD-bd_FR_type.
DR InterPro; IPR001709; Flavoprot_Pyr_Nucl_cyt_Rdtase.
DR InterPro; IPR039261; FNR_nucleotide-bd.
DR InterPro; IPR001433; OxRdtase_FAD/NAD-bd.
DR InterPro; IPR017938; Riboflavin_synthase-like_b-brl.
DR PANTHER; PTHR19370; NADH-CYTOCHROME B5 REDUCTASE; 1.
DR PANTHER; PTHR19370:SF185; NADH-CYTOCHROME B5 REDUCTASE; 1.
DR Pfam; PF00970; FAD_binding_6; 1.
DR Pfam; PF00175; NAD_binding_1; 1.
DR PRINTS; PR00406; CYTB5RDTASE.
DR PRINTS; PR00371; FPNCR.
DR SUPFAM; SSF52343; Ferredoxin reductase-like, C-terminal NADP-linked domain; 1.
DR SUPFAM; SSF63380; Riboflavin synthase domain-like; 1.
DR PROSITE; PS51384; FAD_FR; 1.
PE 3: Inferred from homology;
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRSR:PIRSR601834-1};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|PIRSR:PIRSR601834-
KW 1}; Membrane {ECO:0000256|SAM:Phobius};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|RuleBase:RU361226};
KW Oxidoreductase {ECO:0000256|RuleBase:RU361226};
KW Reference proteome {ECO:0000313|Proteomes:UP000054408};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 6..28
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 42..155
FT /note="FAD-binding FR-type"
FT /evidence="ECO:0000259|PROSITE:PS51384"
FT BINDING 95
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 97
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 112
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 114
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 117
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 129
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 130
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 131
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
FT BINDING 188
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR601834-1"
SQ SEQUENCE 304 AA; 34063 MW; 0D9B25A33404F5D3 CRC64;
MPLNDFVKAN MGLCIGASVL LTAAVYFLGR MRRRRRVALD PKRKIALPLI KKVELSHDTR
LFRFGLPNED DVLGLPIGQH VSLSYTSDEG KLVARSYTPT SSDDDVGYVD FVIKVYFANV
HPKFPEGGKM SQHLESLALG DTIDVRGPKG KLDYKGRGTF AIQAKMGQPA KMVTANKVGM
VAGGTGITPM LQIIRAMRKD PLDNTEVWLL FANQTEDDIL LREELEEEAA RNPEKFHLWY
TVDRPTDGWQ YSSGFVSEDM LREHMPEASD ETLILFCGPP PMEKYAVAPH VKTLGHADDK
YFVF
//