Reviewed, UniProtKB/Swiss-Prot Q0UEY4 (NCB5R_PHANO)

Names and origin

Protein names

Recommended name:
    NADH-cytochrome b5 reductase 1
    EC=1.6.2.2
Alternative name(s):
    Microsomal cytochrome b reductase

Gene names

Name:	CBR1
ORF Names:	SNOG_09680

Organism

Phaeosphaeria nodorum (Glume blotch fungus) (Septoria nodorum) [Complete proteome]

Taxonomic identifier

13684 [NCBI]

Taxonomic lineage

Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Dothideomycetes › Pleosporomycetidae › Pleosporales › Phaeosphaeriaceae › Phaeosphaeria

Protein attributes

Sequence length	282 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Electron donor reductase for cytochrome b5. The cytochrome b5/NADH cytochrome b5 reductase electron transfer system supports the catalytic activity of several sterol biosynthetic enzymes By similarity.
Catalytic activity	NADH + 2 ferricytochrome b5 = NAD+ + H+ + 2 ferrocytochrome b5.
Cofactor	FAD By similarity.
Subunit structure	Monomer By similarity.
Subcellular location	Endoplasmic reticulum membrane; Single-pass membrane protein By similarity. Mitochondrion outer membrane; Single-pass membrane protein By similarity.
Sequence similarities	Belongs to the flavoprotein pyridine nucleotide cytochrome reductase family. Contains 1 FAD-binding FR-type domain.

Ontologies

Keywords
Cellular component	Endoplasmic reticulum Membrane Mitochondrion Mitochondrion outer membrane
Domain	Transmembrane
Ligand	FAD Flavoprotein NAD
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	endoplasmic reticulum Inferred from electronic annotation. Source: UniProtKB-KW integral to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell mitochondrial outer membrane Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	cytochrome-b5 reductase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 282	282	NADH-cytochrome b5 reductase 1		PRO_0000330161
Regions
	Transmembrane	2 – 22	21	Potential
	Domain	36 – 141	106	FAD-binding FR-type
	Nucleotide binding	121 – 136	16	FAD By similarity
	Nucleotide binding	147 – 181	35	FAD By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q0UEY4-1 [UniParc]. Last modified February 5, 2008. Version 2. Checksum: 42BC818575EBE25E	FASTA	282	30,777
	10 20 30 40 50 60 MAFSPQALLP YVVLFVAAVG GWKVYSSGSK KVLKPNEFQE FELEEKTVLS HNTAIYRFKL 70 80 90 100 110 120 PRKTDILGLP IGQHISLGAT IEGQPKEVVR SYTPISSDED KGHFDLLIKS YPTGNISKYV 130 140 150 160 170 180 ANLKVGEKMR VKGPKGAMVY TPNMVRHFGM ISGGTGITPM LQVVKAIIRG RGQGDTTEVD 190 200 210 220 230 240 LIFANVNPED ILLKEDLDAL AAKDPKFRVH YVLNNPPEGW TGGVGFVTAD MIKEKLPAPA 250 260 270 280 SDVKILVCGP PPMVAAMKKA TESLGYAKAK PVSKLEDQVF CF

References

[1]

"Dothideomycete-plant interactions illuminated by genome sequencing and EST analysis of the wheat pathogen Stagonospora nodorum." Hane J.K., Lowe R.G.T., Solomon P.S., Tan K.-C., Schoch C.L., Spatafora J.W., Crous P.W., Kodira C.D., Birren B.W., Galagan J.E., Torriani S.F.F., McDonald B.A., Oliver R.P. Plant Cell 19:3347-3368(2007) [PubMed: 18024570] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: SN15 / FGSC 10173.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CH445339 Genomic DNA. Translation: EAT82945.2.
RefSeq	XP_001799967.1.
3D structure databases
SMR	Q0UEY4. Positions 30-268.
ModBase	Search...
Genome annotation databases
GeneID	5976872.
Phylogenomic databases
OrthoDB	EOG9KM0KS.
Family and domain databases
InterPro	IPR017927. Fd_Rdtase_FAD-bd. IPR001709. Flavoprot_Pyr_Nucl_cyt_Rdtase. IPR001834. NADH-Cyt_B5_reductase. IPR008333. OxRdtase_FAD-bd_dom. IPR001433. OxRdtase_FAD/NAD_bd. IPR017938. Riboflavin_synthase-like_b-brl. [Graphical view]
Pfam	PF00970. FAD_binding_6. 1 hit. PF00175. NAD_binding_1. 1 hit. [Graphical view]
PRINTS	PR00406. CYTB5RDTASE. PR00371. FPNCR.
PROSITE	PS51384. FAD_FR. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

NCB5R_PHANO

Accession

Primary (citable) accession number: Q0UEY4

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 29, 2008
Last sequence update:	February 5, 2008
Last modified:	January 19, 2010
This is version 29 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

FPAP (Fungal Proteome Annotation Project)