ID   MCR1_USTMA              Reviewed;         350 AA.
AC   Q4P7Y8;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2005, sequence version 1.
DT   16-JUN-2009, entry version 25.
DE   RecName: Full=NADH-cytochrome b5 reductase 2;
DE            EC=1.6.2.2;
DE   AltName: Full=Mitochondrial cytochrome b reductase;
GN   Name=MCR1; ORFNames=UM03775;
OS   Ustilago maydis (Smut fungus).
OC   Eukaryota; Fungi; Dikarya; Basidiomycota; Ustilaginomycotina;
OC   Ustilaginomycetes; Ustilaginales; Ustilaginaceae; Ustilago.
OX   NCBI_TaxID=5270;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=521;
RX   PubMed=17080091; DOI=10.1038/nature05248;
RA   Kaemper J., Kahmann R., Boelker M., Ma L.-J., Brefort T.,
RA   Saville B.J., Banuett F., Kronstad J.W., Gold S.E., Mueller O.,
RA   Perlin M.H., Woesten H.A.B., de Vries R., Ruiz-Herrera J.,
RA   Reynaga-Pena C.G., Snetselaar K., McCann M., Perez-Martin J.,
RA   Feldbruegge M., Basse C.W., Steinberg G., Ibeas J.I., Holloman W.,
RA   Guzman P., Farman M.L., Stajich J.E., Sentandreu R.,
RA   Gonzalez-Prieto J.M., Kennell J.C., Molina L., Schirawski J.,
RA   Mendoza-Mendoza A., Greilinger D., Muench K., Roessel N., Scherer M.,
RA   Vranes M., Ladendorf O., Vincon V., Fuchs U., Sandrock B., Meng S.,
RA   Ho E.C.H., Cahill M.J., Boyce K.J., Klose J., Klosterman S.J.,
RA   Deelstra H.J., Ortiz-Castellanos L., Li W., Sanchez-Alonso P.,
RA   Schreier P.H., Haeuser-Hahn I., Vaupel M., Koopmann E., Friedrich G.,
RA   Voss H., Schlueter T., Margolis J., Platt D., Swimmer C., Gnirke A.,
RA   Chen F., Vysotskaia V., Mannhaupt G., Gueldener U.,
RA   Muensterkoetter M., Haase D., Oesterheld M., Mewes H.-W.,
RA   Mauceli E.W., DeCaprio D., Wade C.M., Butler J., Young S.K.,
RA   Jaffe D.B., Calvo S.E., Nusbaum C., Galagan J.E., Birren B.W.;
RT   "Insights from the genome of the biotrophic fungal plant pathogen
RT   Ustilago maydis.";
RL   Nature 444:97-101(2006).
CC   -!- FUNCTION: May mediate the reduction of outer membrane cytochrome
CC       b5 (By similarity).
CC   -!- CATALYTIC ACTIVITY: NADH + 2 ferricytochrome b5 = NAD(+) + H(+) +
CC       2 ferrocytochrome b5.
CC   -!- COFACTOR: FAD (By similarity).
CC   -!- SUBCELLULAR LOCATION: Mitochondrion outer membrane; Single-pass
CC       membrane protein (By similarity).
CC   -!- SIMILARITY: Belongs to the flavoprotein pyridine nucleotide
CC       cytochrome reductase family.
CC   -!- SIMILARITY: Contains 1 FAD-binding FR-type domain.
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DR   EMBL; AACP01000126; EAK84810.1; -; Genomic_DNA.
DR   RefSeq; XP_759922.1; -.
DR   GeneID; 3631863; -.
DR   KEGG; uma:UM03775.1; -.
DR   OMA; Q4P7Y8; YANVSPD.
DR   GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005741; C:mitochondrial outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004128; F:cytochrome-b5 reductase activity; IEA:EC.
DR   GO; GO:0009055; F:electron carrier activity; IEA:InterPro.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   InterPro; IPR017927; Fd_Rdtase_FAD-bd.
DR   InterPro; IPR001709; Flavoprot_Pyr_Nucl_cyt_Rdtase.
DR   InterPro; IPR001834; NADH-Cyt_B5_reductase.
DR   InterPro; IPR008333; OxRdtase_FAD-bd.
DR   InterPro; IPR001433; OxRdtase_FAD/NAD_bd.
DR   Pfam; PF00970; FAD_binding_6; 1.
DR   Pfam; PF00175; NAD_binding_1; 1.
DR   PRINTS; PR00406; CYTB5RDTASE.
DR   PRINTS; PR00371; FPNCR.
DR   PROSITE; PS51384; FAD_FR; 1.
PE   3: Inferred from homology;
KW   Complete proteome; FAD; Flavoprotein; Membrane; Mitochondrion;
KW   Mitochondrion outer membrane; NAD; Oxidoreductase; Transmembrane.
FT   CHAIN         1    350       NADH-cytochrome b5 reductase 2.
FT                                /FTId=PRO_0000330191.
FT   TRANSMEM     43     63       Potential.
FT   DOMAIN       96    204       FAD-binding FR-type.
FT   NP_BIND     207    242       FAD (By similarity).
SQ   SEQUENCE   350 AA;  37613 MW;  9C4FB2C062E42E9A CRC64;
     MFIRPVLSSS LGHAARSSLR SQAPAVRQYA TEAGKSSGGS NLPLVLALGG VAGIGAWYGL
     GGFDDPKKVS NKIQEKGKEA VDQAKGAVEG GALNKDQFVE FTLKEIKPYN HDSATLIFEL
     PEGKKPGMGV ASAVVVKAVG DGLKDDQGKD VIRPYTPITS PDTVGHMDFL VKKYPGGKMT
     TYMHSMKPGD KLGIKGPIAK FAYKANEFES IGMIAGGSGI TPMYQVIQDI ASNPSDKTKV
     TLIYSNKTEQ DILLREQFDQ LAKKDDRFTI IYGLDKLPKG FNGFEGYVTE DLVKKHLPQP
     ELADKAKIFV CGPPPQVEAI SGKKGPKGSQ GELKGLLAKL GYQADQVYKF
//