CBR1 cytochrome-b5 reductase [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: CBR1
Official Full Name: cytochrome-b5 reductase
Primary source: SGD:S000001305
Locus tag: YIL043C
See related: AllianceGenome:SGD:S000001305; FungiDB:YIL043C; VEuPathDB:YIL043C
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as: CBR5
Summary: Enables cytochrome-b5 reductase activity, acting on NAD(P)H. Involved in tRNA wobble uridine modification. Located in mitochondrial outer membrane and nucleus. Human ortholog(s) of this gene implicated in breast cancer and methemoglobinemia. Orthologous to human CYB5R1 (cytochrome b5 reductase 1); CYB5R2 (cytochrome b5 reductase 2); and CYB5R3 (cytochrome b5 reductase 3). [provided by Alliance of Genome Resources, Dec 2024]
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Genomic context

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See CBR1 in Genome Data Viewer

Location:: chromosome: IX

Exon count:: 1

Sequence:: Chromosome: IX; NC_001141.2 (274072..274926, complement)

Chromosome IX - NC_001141.2 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001141.2

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

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Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Orthologs from OrthoDB

Gene Ontology Provided by SGD

Function	Evidence Code	Pubs
enables cytochrome-b5 reductase activity, acting on NAD(P)H	IBA Inferred from Biological aspect of Ancestor more info
enables cytochrome-b5 reductase activity, acting on NAD(P)H	IDA Inferred from Direct Assay more info	PubMed
enables cytochrome-b5 reductase activity, acting on NAD(P)H	IEA Inferred from Electronic Annotation more info
enables oxidoreductase activity	IEA Inferred from Electronic Annotation more info
enables transferase activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in protein histidyl modification to diphthamide	IEA Inferred from Electronic Annotation more info
involved_in tRNA wobble uridine modification	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in mitochondrial outer membrane	HDA more info	PubMed
located_in mitochondrial outer membrane	IEA Inferred from Electronic Annotation more info
located_in mitochondrion	HDA more info	PubMed
located_in mitochondrion	IEA Inferred from Electronic Annotation more info
located_in nucleus	HDA more info	PubMed
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: cytochrome-b5 reductase

NP_012221.2

EC 1.6.2.2

Cytochrome b reductase and NADH-dependent reductase for Dph3p; required for diphthamide synthesis and tRNA wobble uridine modification; also detected in mitochondria; mutation in conserved NADH binding domain of the human ortholog results in type I methemoglobinemia

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

NC_001141.2 Reference assembly

Range

274072..274926 complement

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001179393.1 → NP_012221.2 TPA: cytochrome-b5 reductase [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_012221.2

Status: REVIEWED

UniProtKB/Swiss-Prot

D6VVN9, P38626

UniProtKB/TrEMBL

C8ZAK3, N1P449

Conserved Domains (1) summary

cd06183
Location:43 → 284

cyt_b5_reduct_like; Cytochrome b5 reductase catalyzes the reduction of 2 molecules of cytochrome b5 using NADH as an electron donor. Like ferredoxin reductases, these proteins have an N-terminal FAD binding subdomain and a C-terminal NADH binding subdomain, separated by a ...