Identification
HMDB Protein ID CDBP01588
Secondary Accession Numbers Not Available
Name Cytochrome b-245 heavy chain
Description Not Available
Synonyms
  1. CGD91-phox
  2. Cytochrome b(558) subunit beta
  3. Cytochrome b558 subunit beta
  4. Heme-binding membrane glycoprotein gp91phox
  5. NADPH oxidase 2
  6. Neutrophil cytochrome b 91 kDa polypeptide
  7. Superoxide-generating NADPH oxidase heavy chain subunit
  8. gp91-1
  9. gp91-phox
  10. p22 phagocyte B-cytochrome
Gene Name CYBB
Protein Type Metal Binding
Biological Properties
General Function Involved in oxidoreductase activity
Specific Function Critical component of the membrane-bound oxidase of phagocytes that generates superoxide. It is the terminal component of a respiratory chain that transfers single electrons from cytoplasmic NADPH across the plasma membrane to molecular oxygen on the exterior. Also functions as a voltage-gated proton channel that mediates the H(+) currents of resting phagocytes. It participates in the regulation of cellular pH and is blocked by zinc
GO Classification
Component
membrane part
intrinsic to membrane
integral to membrane
membrane
cell part
Function
ion binding
cation binding
metal ion binding
binding
catalytic activity
transition metal ion binding
nucleoside binding
purine nucleoside binding
adenyl nucleotide binding
electron carrier activity
iron ion binding
oxidoreductase activity
fad or fadh2 binding
Process
metabolic process
oxidation reduction
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs CYBB
Gene Sequence
>1713 bp
ATGGGGAACTGGGCTGTGAATGAGGGGCTCTCCATTTTTGTCATTCTGGTTTGGCTGGGG
TTGAACGTCTTCCTCTTTGTCTGGTATTACCGGGTTTATGATATTCCACCTAAGTTCTTT
TACACAAGAAAACTTCTTGGGTCAGCACTGGCACTGGCCAGGGCCCCTGCAGCCTGCCTG
AATTTCAACTGCATGCTGATTCTCTTGCCAGTCTGTCGAAATCTGCTGTCCTTCCTCAGG
GGTTCCAGTGCGTGCTGCTCAACAAGAGTTCGAAGACAACTGGACAGGAATCTCACCTTT
CATAAAATGGTGGCATGGATGATTGCACTTCACTCTGCGATTCACACCATTGCACATCTA
TTTAATGTGGAATGGTGTGTGAATGCCCGAGTCAATAATTCTGATCCTTATTCAGTAGCA
CTCTCTGAACTTGGAGACAGGCAAAATGAAAGTTATCTCAATTTTGCTCGAAAGAGAATA
AAGAACCCTGAAGGAGGCCTGTACCTGGCTGTGACCCTGTTGGCAGGCATCACTGGAGTT
GTCATCACGCTGTGCCTCATATTAATTATCACTTCCTCCACCAAAACCATCCGGAGGTCT
TACTTTGAAGTCTTTTGGTACACACATCATCTCTTTGTGATCTTCTTCATTGGCCTTGCC
ATCCATGGAGCTGAACGAATTGTACGTGGGCAGACCGCAGAGAGTTTGGCTGTGCATAAT
ATAACAGTTTGTGAACAAAAAATCTCAGAATGGGGAAAAATAAAGGAATGCCCAATCCCT
CAGTTTGCTGGAAACCCTCCTATGACTTGGAAATGGATAGTGGGTCCCATGTTTCTGTAT
CTCTGTGAGAGGTTGGTGCGGTTTTGGCGATCTCAACAGAAGGTGGTCATCACCAAGGTG
GTCACTCACCCTTTCAAAACCATCGAGCTACAGATGAAGAAGAAGGGGTTCAAAATGGAA
GTGGGACAATACATTTTTGTCAAGTGCCCAAAGGTGTCCAAGCTGGAGTGGCACCCTTTT
ACACTGACATCCGCCCCTGAGGAAGACTTCTTTAGTATCCATATCCGCATCGTTGGGGAC
TGGACAGAGGGGCTGTTCAATGCTTGTGGCTGTGATAAGCAGGAGTTTCAAGATGCGTGG
AAACTACCTAAGATAGCGGTTGATGGGCCCTTTGGCACTGCCAGTGAAGATGTGTTCAGC
TATGAGGTGGTGATGTTAGTGGGAGCAGGGATTGGGGTCACACCCTTCGCATCCATTCTC
AAGTCAGTCTGGTACAAATATTGCAATAACGCCACCAATCTGAAGCTCAAAAAGATCTAC
TTCTACTGGCTGTGCCGGGACACACATGCCTTTGAGTGGTTTGCAGATCTGCTGCAACTG
CTGGAGAGCCAGATGCAGGAAAGGAACAATGCCGGCTTCCTCAGCTACAACATCTACCTC
ACTGGCTGGGATGAGTCTCAGGCCAATCACTTTGCTGTGCACCATGATGAGGAGAAAGAT
GTGATCACAGGCCTGAAACAAAAGACTTTGTATGGACGGCCCAACTGGGATAATGAATTC
AAGACAATTGCAAGTCAACACCCTAATACCAGAATAGGAGTTTTCCTCTGTGGACCTGAA
GCCTTGGCTGAAACCCTGAGTAAACAAAGCATCTCCAACTCTGAGTCTGGCCCTCGGGGA
GTGCATTTCATTTTCAACAAGGAAAACTTCTAA
Protein Properties
Number of Residues 570
Molecular Weight 65335.4
Theoretical pI 8.76
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["9-29", "49-69", "103-123", "170-190", "201-221", "262-282"]
Protein Sequence
>Cytochrome b-245 heavy chain
MGNWAVNEGLSIFVILVWLGLNVFLFVWYYRVYDIPPKFFYTRKLLGSALALARAPAACL
NFNCMLILLPVCRNLLSFLRGSSACCSTRVRRQLDRNLTFHKMVAWMIALHSAIHTIAHL
FNVEWCVNARVNNSDPYSVALSELGDRQNESYLNFARKRIKNPEGGLYLAVTLLAGITGV
VITLCLILIITSSTKTIRRSYFEVFWYTHHLFVIFFIGLAIHGAERIVRGQTAESLAVHN
ITVCEQKISEWGKIKECPIPQFAGNPPMTWKWIVGPMFLYLCERLVRFWRSQQKVVITKV
VTHPFKTIELQMKKKGFKMEVGQYIFVKCPKVSKLEWHPFTLTSAPEEDFFSIHIRIVGD
WTEGLFNACGCDKQEFQDAWKLPKIAVDGPFGTASEDVFSYEVVMLVGAGIGVTPFASIL
KSVWYKYCNNATNLKLKKIYFYWLCRDTHAFEWFADLLQLLESQMQERNNAGFLSYNIYL
TGWDESQANHFAVHHDEEKDVITGLKQKTLYGRPNWDNEFKTIASQHPNTRIGVFLCGPE
ALAETLSKQSISNSESGPRGVHFIFNKENF
GenBank ID Protein 6996021
UniProtKB/Swiss-Prot ID P04839
UniProtKB/Swiss-Prot Entry Name CY24B_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_000397.3
GeneCard ID CYBB
GenAtlas ID CYBB
HGNC ID HGNC:2578
References
General References Not Available