ID   MCR1_YARLI              Reviewed;         291 AA.
AC   Q6C9G8;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 1.
DT   03-AUG-2022, entry version 95.
DE   RecName: Full=NADH-cytochrome b5 reductase 2;
DE            EC=1.6.2.2;
DE   AltName: Full=Mitochondrial cytochrome b reductase;
GN   Name=MCR1; OrderedLocusNames=YALI0D11330g;
OS   Yarrowia lipolytica (strain CLIB 122 / E 150) (Yeast) (Candida lipolytica).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Dipodascaceae; Yarrowia.
OX   NCBI_TaxID=284591;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CLIB 122 / E 150;
RX   PubMed=15229592; DOI=10.1038/nature02579;
RA   Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA   de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA   Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA   Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA   Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA   Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA   Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA   Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA   Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA   Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA   Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA   Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA   Weissenbach J., Wincker P., Souciet J.-L.;
RT   "Genome evolution in yeasts.";
RL   Nature 430:35-44(2004).
CC   -!- FUNCTION: May mediate the reduction of outer membrane cytochrome b5.
CC       {ECO:0000250}.
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   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC   -!- SUBCELLULAR LOCATION: Mitochondrion outer membrane {ECO:0000250};
CC       Single-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the flavoprotein pyridine nucleotide cytochrome
CC       reductase family. {ECO:0000305}.
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DR   EMBL; CR382130; CAG80882.1; -; Genomic_DNA.
DR   RefSeq; XP_502694.1; XM_502694.1.
DR   AlphaFoldDB; Q6C9G8; -.
DR   SMR; Q6C9G8; -.
DR   STRING; 4952.CAG80882; -.
DR   EnsemblFungi; CAG80882; CAG80882; YALI0_D11330g.
DR   GeneID; 2910736; -.
DR   KEGG; yli:YALI0D11330g; -.
DR   VEuPathDB; FungiDB:YALI0_D11330g; -.
DR   HOGENOM; CLU_003827_9_1_1; -.
DR   InParanoid; Q6C9G8; -.
DR   OMA; NKHDHIA; -.
DR   Proteomes; UP000001300; Chromosome D.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005741; C:mitochondrial outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004128; F:cytochrome-b5 reductase activity, acting on NAD(P)H; IBA:GO_Central.
DR   GO; GO:0006696; P:ergosterol biosynthetic process; IBA:GO_Central.
DR   Gene3D; 3.40.50.80; -; 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; PTHR19370; 1.
DR   Pfam; PF00970; FAD_binding_6; 1.
DR   Pfam; PF00175; NAD_binding_1; 1.
DR   PRINTS; PR00371; FPNCR.
DR   SUPFAM; SSF52343; SSF52343; 1.
DR   SUPFAM; SSF63380; SSF63380; 1.
DR   PROSITE; PS51384; FAD_FR; 1.
PE   3: Inferred from homology;
KW   FAD; Flavoprotein; Membrane; Mitochondrion; Mitochondrion outer membrane;
KW   NAD; Oxidoreductase; Reference proteome; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..291
FT                   /note="NADH-cytochrome b5 reductase 2"
FT                   /id="PRO_0000330194"
FT   TRANSMEM        7..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          41..145
FT                   /note="FAD-binding FR-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00716"
FT   BINDING         148..183
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   291 AA;  31763 MW;  C186091D706835C4 CRC64;
     MLVPWAPIAA TSVVAAAASS YYFSNMAISN DAKTATLKGD DQWVDLKLKS SKDLSHNTKA
     LIFELPTPDS TLGLTTASAL LTKYVTPKGS NVVRPYTPVS DPDSKGEFEL VVKSYPEGKM
     SKHIHELKEG DTLSFKGPII KYQWQPNLHK EITLIGAGTG ITPLYQLISA INKNPEDKTK
     VNLFYGNATE GDILLKDEID AIAKAKPQQF NVHYFLDKPS DNWKGENGFI SEEFIKGNSP
     AADSDNVKVF VCGPPPFYKA ISGAKVSPTD QGEVDGALKN LGFNKDQVFK F