CYBB

CYBB Gene Summary

Cytochrome b (-245) is composed of cytochrome b alpha (CYBA) and beta (CYBB) chain. It has been proposed as a primary component of the microbicidal oxidase system of phagocytes. CYBB deficiency is one of five described biochemical defects associated with chronic granulomatous disease (CGD). In this disorder, there is decreased activity of phagocyte NADPH oxidase; neutrophils are able to phagocytize bacteria but cannot kill them in the phagocytic vacuoles. The cause of the killing defect is an inability to increase the cell's respiration and consequent failure to deliver activated oxygen into the phagocytic vacuole. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
CYBB
Official Name
cytochrome b-245 beta chain [Source:HGNC Symbol;Acc:HGNC:2578]
Ensembl ID
ENSG00000165168
Bio databases IDs NCBI: 1536 Ensembl: ENSG00000165168
Aliases cytochrome b-245 beta chain, NADPH oxidase 2
Synonyms
AMCBX2,CGD,CGD91-phox,CGDX,Cyd,cytochrome b-245 beta chain,cytochrome b-245, beta polypeptide,cytochrome b-245 β chain,cytochrome b-245, β polypeptide,gp91,GP91-1,GP91-PHOX,IMD34,NOX2,p91-PHOX
Species
Human, Homo sapiens

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • FNR_like
  • electron carrier
  • flavin adenine dinucleotide binding
  • FAD binding domain
  • Cytochrome_b_N
  • heme binding domain
  • enzyme
  • protein binding
  • heme binding
  • superoxide-generating NADPH oxidase
  • FAD binding
  • NADPH binding
  • loop domain
  • protein heterodimerization
  • Oxidoreductase NAD-binding domain
  • NADPH binding domain

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
  • CYBA
  • NFE2L2
  • NCF4
  • NCF2
  • NCF1
  • STING1
  • RAC2
  • USP7
  • SATB1
  • Satb1
disease
  • epithelial cancer
  • metastasis
  • neoplasia
  • mosaic X-linked chronic granulomatous disease
  • glioblastoma cancer
  • ventricular septal defect
  • amyloidosis
  • cardiac hypertrophy
  • pneumonitis
  • chronic granulomatous disease
regulated by
  • arachidonic acid
  • PI3K (complex)
  • cisplatin
  • metformin
  • IFNG
  • SIRT1 inhibitor III
  • advanced glycation endproducts-bovine serum albumin
  • N-acetyl-L-cysteine
  • pentoxifylline
  • TNF
regulates
  • cholesterol
  • RELA
  • PTGS2
  • ERK1/2
  • CD83
  • CHUK
  • IL6
  • PPARG
  • TNF
  • nitric oxide
role in cell
  • formation
  • activation in
  • cell death
  • apoptosis
  • expression in
  • phosphorylation in
  • quantity
  • proliferation
  • differentiation
  • migration

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • detergent-insoluble membrane fraction
  • membrane fraction
  • cell surface
  • cellular membrane
  • Plasma Membrane
  • Golgi Apparatus
  • Endoplasmic Reticulum
  • granules
  • tertiary granule membrane
  • specific granule membrane
  • cytosol
  • vesicle membrane
  • reticular perinuclear compartment
  • endoplasmic reticulum membrane
  • endosomal compartment
  • nuclear envelope
  • synapse
  • transverse tubules
  • membrane rafts
  • brush border
  • perikaryon
  • dendrites
  • phagosomes

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the CYBB gene, providing context for its role in the cell.

BIOLOGICAL PROCESS

Functions and activities the gene product is involved in
  • ion transmembrane transport
  • response to nutrient
  • response to xenobiotic stimulus
  • respiratory burst
  • superoxide anion generation
  • defense response
  • positive regulation of angiogenesis
  • cellular response to ethanol
  • inflammatory response
  • superoxide metabolic process
  • innate immune response
  • cellular response to cadmium ion
  • positive regulation of tumor necrosis factor production
  • hydrogen peroxide biosynthetic process

CELLULAR COMPONENT

Where in the cell the gene product is active
  • endoplasmic reticulum membrane
  • nuclear envelope
  • dendrite
  • perinuclear endoplasmic reticulum
  • NADPH oxidase complex
  • phagocytic vesicle membrane
  • neuronal cell body
  • ion channel complex
  • plasma membrane
  • tertiary granule membrane
  • specific granule membrane

MOLECULAR FUNCTION

What the gene product does at the molecular level
  • protein binding
  • protein heterodimerization activity
  • flavin adenine dinucleotide binding
  • metal ion binding
  • electron carrier activity
  • superoxide-generating NADPH oxidase activity
  • heme binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.