Q5AZB4 (NCB5R_EMENI) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 48.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames 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 |
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| Organism | Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) (Aspergillus nidulans) | ||||
| Taxonomic identifier | 227321 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Eurotiomycetes › Eurotiomycetidae › Eurotiales › Trichocomaceae › Emericella |
Protein attributes
| Sequence length | 310 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. |
| Sequence caution | The sequence EAA58750.1 differs from that shown. Reason: Erroneous gene model prediction. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Endoplasmic reticulum Membrane Mitochondrion Mitochondrion outer membrane |
| Domain | Transmembrane Transmembrane helix |
| Ligand | FAD Flavoprotein NAD |
| Molecular function | Oxidoreductase |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Cellular component | endoplasmic reticulum membrane Inferred from electronic annotation. Source: UniProtKB-SubCell integral to membraneInferred from electronic annotation. Source: UniProtKB-KW mitochondrial outer membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| 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 – 310 | 310 | NADH-cytochrome b5 reductase 1 | PRO_0000330153 | |||||
Regions | |||||||||
| Transmembrane | 30 – 50 | 21 | Helical; Potential | ||||||
| Domain | 61 – 166 | 106 | FAD-binding FR-type | ||||||
| Nucleotide binding | 146 – 160 | 15 | FAD By similarity | ||||||
| Nucleotide binding | 172 – 209 | 38 | FAD By similarity | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AACD01000107 Genomic DNA. Translation: EAA58750.1. Sequence problems. BN001301 Genomic DNA. Translation: CBF69615.1. |
| RefSeq | XP_663970.1. XM_658878.1. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1QX4 based on UniProtKB P20070. |
| ProteinModelPortal | Q5AZB4. |
| ModBase | Search... |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| GeneID | 2871257. |
| KEGG | ani:AN6366.2. |
Phylogenomic databases | |
| OrthoDB | EOG4FFH9R. |
| PhylomeDB | Q5AZB4. |
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] |
| KO | K00326. |
| Pfam | PF00970. FAD_binding_6. 1 hit. PF00175. NAD_binding_1. 1 hit. [Graphical view] |
| PRINTS | PR00406. CYTB5RDTASE. PR00371. FPNCR. |
| SUPFAM | SSF63380. Riboflavin_synthase_like_b-brl. 1 hit. |
| PROSITE | PS51384. FAD_FR. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | NCB5R_EMENI | ||||||||
| Accession | Primary (citable) accession number: Q5AZB4 Secondary accession number(s): C8V0X3 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Fungal Protein Annotation Program | ||||||||
Relevant documents
| SIMILARITY comments Index of protein domains and families |

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