| Identification |
| HMDB Protein ID
| CDBP02507 |
| Secondary Accession Numbers
| Not Available |
| Name
| Cytochrome b5 reductase 4 |
| Description
| Not Available |
| Synonyms
|
- Flavohemoprotein b5/b5R
- N-terminal cytochrome b5 and cytochrome b5 oxidoreductase domain-containing protein
- b5+b5R
- cb5/cb5R
|
| Gene Name
| CYB5R4 |
| Protein Type
| Enzyme |
| Biological Properties |
| General Function
| Involved in heme binding |
| Specific Function
| NADH-cytochrome b5 reductase involved in endoplasmic reticulum stress response pathway. Plays a critical role in protecting pancreatic beta-cells against oxidant stress, possibly by protecting the cell from excess buildup of reactive oxygen species (ROS). Reduces a variety of substrates in vitro, such as cytochrome c, feericyanide and methemoglobin.
|
| GO Classification
|
| Biological Process |
| superoxide metabolic process |
| cell development |
| detection of oxygen |
| generation of precursor metabolites and energy |
| glucose homeostasis |
| insulin secretion |
| response to antibiotic |
| Cellular Component |
| endoplasmic reticulum |
| perinuclear region of cytoplasm |
| Function |
| heme binding |
| oxidoreductase activity |
| ion binding |
| cation binding |
| metal ion binding |
| binding |
| catalytic activity |
| transition metal ion binding |
| iron ion binding |
| Molecular Function |
| metal ion binding |
| cytochrome-b5 reductase activity |
| heme binding |
| NAD(P)H oxidase activity |
| Process |
| metabolic process |
| oxidation reduction |
|
| Cellular Location
|
- Endoplasmic reticulum
|
| Pathways
|
Not Available
|
| Gene Properties |
| Chromosome Location
| 6 |
| Locus
| 6pter-q22.33 |
| SNPs
| CYB5R4 |
| Gene Sequence
|
>1566 bp
ATGCTGAACGTCCCTTCCCAGTCTTTCCCGGCCCCCAGGTCGCAGCAGCGTGTCGCCTCC
GGGGGGCGTAGCAAGGTACCTTTAAAACAGGGCAGAAGCCTTATGGATTGGATTCGACTG
ACCAAAAGTGGAAAGGATCTAACGGGATTAAAAGGCAGGTTAATTGAAGTAACTGAAGAA
GAACTTAAGAAACACAACAAAAAAGATGATTGTTGGATATGCATAAGAGGTTTCGTTTAT
AATGTCAGCCCTTATATGGAGTATCATCCTGGTGGAGAAGATGAACTAATGAGAGCAGCA
GGATCAGATGGTACTGAACTTTTTGATCAGGTTCATCGTTGGGTCAATTATGAATCCATG
CTGAAAGAATGCCTGGTTGGCAGAATGGCCATTAAACCTGCTGTTCTGAAAGACTATCGT
GAGGAGGAAAAGAAAGTCTTAAATGGCATGCTTCCCAAGAGCCAAGTGACAGATACACTT
GCCAAAGAAGGTCCTAGTTATCCAAGCTATGATTGGTTCCAAACAGACTCTTTAGTCACC
ATTGCCATATATACTAAACAGAAGGATATCAATTTAGACTCAATAATAGTTGATCATCAG
AATGATTCCTTTAGAGCAGAAACAATTATTAAGGATTGTTTATATCTTATACATATTGGG
CTAAGCCATGAGGTTCAGGAAGATTTTTCTGTGCGGGTTGTTGAGAGTGTGGGAAAAATA
GAGATTGTTCTACAAAAAAAAGAGAATACTTCTTGGGACTTTCTTGGCCATCCCCTGAAG
AATCATAATTCACTTATTCCAAGGAAAGATACAGGTTTGTACTACAGAAAGTGCCAGTTA
ATTTCCAAGGAAGATGTTACTCATGATACGAGGCTTTTCTGTTTGATGCTGCCACCAAGC
ACTCATCTTCAAGTGCCCATTGGGCAACATGTTTACCTCAAGCTACCTATTACAGGTACA
GAAATAGTAAAGCCATATACACCTGTATCTGGTTCCTTACTCTCAGAGTTCAAGGAACCA
GTTCTTCCCAACAATAAATACATCTACTTTTTGATAAAAATCTATCCCACTGGACTCTTC
ACACCAGAGCTTGATCGTCTTCAGATTGGAGATTTTGTTTCTGTAAGCAGTCCTGAGGGC
AATTTTAAAATATCCAAGTTCCAAGAATTAGAAGATCTCTTTTTGTTGGCAGCTGGAACA
GGCTTCACACCAATGGTTAAAATACTGAATTATGCTTTGACTGATATACCCAGTCTCAGG
AAAGTGAAGCTGATGTTCTTCAATAAAACAGAAGATGATATAATTTGGAGAAGCCAATTG
GAGAAATTAGCATTTAAAGATAAAAGACTGGATGTTGAATTTGTTCTCTCAGCACCTATT
TCTGAATGGAATGGCAAACAGGGACATATTTCACCAGCTCTTCTTTCTGAATTTTTGAAA
AGAAATTTGGACAAATCCAAAGTTCTCGTCTGCATTTGTGGACCAGTGCCATTTACAGAA
CAAGGAGTAAGGTTGCTGCATGATCTCAACTTTTCCAAAAATGAGATCCATAGTTTTACA
GCATAA
|
| Protein Properties |
| Number of Residues
| 521 |
| Molecular Weight
| 59473.19 |
| Theoretical pI
| 7.724 |
| Pfam Domain Function
|
|
| Signals
|
Not Available
|
|
Transmembrane Regions
|
Not Available
|
| Protein Sequence
|
>Cytochrome b5 reductase 4
MLNVPSQSFPAPRSQQRVASGGRSKVPLKQGRSLMDWIRLTKSGKDLTGLKGRLIEVTEE
ELKKHNKKDDCWICIRGFVYNVSPYMEYHPGGEDELMRAAGSDGTELFDQVHRWVNYESM
LKECLVGRMAIKPAVLKDYREEEKKVLNGMLPKSQVTDTLAKEGPSYPSYDWFQTDSLVT
IAIYTKQKDINLDSIIVDHQNDSFRAETIIKDCLYLIHIGLSHEVQEDFSVRVVESVGKI
EIVLQKKENTSWDFLGHPLKNHNSLIPRKDTGLYYRKCQLISKEDVTHDTRLFCLMLPPS
THLQVPIGQHVYLKLPITGTEIVKPYTPVSGSLLSEFKEPVLPNNKYIYFLIKIYPTGLF
TPELDRLQIGDFVSVSSPEGNFKISKFQELEDLFLLAAGTGFTPMVKILNYALTDIPSLR
KVKLMFFNKTEDDIIWRSQLEKLAFKDKRLDVEFVLSAPISEWNGKQGHISPALLSEFLK
RNLDKSKVLVCICGPVPFTEQGVRLLHDLNFSKNEIHSFTA
|
| External Links |
| GenBank ID Protein
| 84875541 |
| UniProtKB/Swiss-Prot ID
| Q7L1T6 |
| UniProtKB/Swiss-Prot Entry Name
| NB5R4_HUMAN |
| PDB IDs
|
|
| GenBank Gene ID
| NM_016230.3 |
| GeneCard ID
| CYB5R4 |
| GenAtlas ID
| CYB5R4 |
| HGNC ID
| HGNC:20147 |
| References |
| General References
| Not Available |