Catalase (CAT) Antibody – Rabbit Polyclonal

This gene encodes catalase, a key antioxidant enzyme in the bodies defense against oxidative stress. Catalase is a heme enzyme that is present in the peroxisome of nearly all aerobic cells. Catalase converts the reactive oxygen species hydrogen peroxide to water and oxygen and thereby mitigates the toxic effects of hydrogen peroxide. Oxidative stress is hypothesized to play a role in the development of many chronic or late-onset diseases such as diabetes, asthma, Alzheimer's disease, systemic lupus erythematosus, rheumatoid arthritis, and cancers. Polymorphisms in this gene have been associated with decreases in catalase activity but, to date, acatalasemia is the only disease known to be caused by this gene. [provided by RefSeq, Oct 2009]

Catalase: Occurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells and normal and transformed fibroblast cells. Homotetramer. Belongs to the catalase family.

Protein type: Oxidoreductase; Mitochondrial; Hydrolase; Energy Metabolism - methane; Apoptosis; EC 1.11.1.6; Amino Acid Metabolism - tryptophan; Endoplasmic reticulum

Chromosomal Location of Human Ortholog: 11p13

Cellular Component: cytosol; endoplasmic reticulum; extracellular space; focal adhesion; Golgi apparatus; intracellular membrane-bound organelle; lysosome; membrane; mitochondrial intermembrane space; mitochondrion; peroxisomal matrix; peroxisomal membrane; peroxisome; plasma membrane

Molecular Function: aminoacylase activity; antioxidant activity; catalase activity; enzyme binding; heme binding; metal ion binding; NADP binding; oxidoreductase activity, acting on peroxide as acceptor; protein homodimerization activity; receptor binding

Biological Process: activation of NF-kappaB transcription factor; aerobic respiration; aging; cholesterol metabolic process; hemoglobin metabolic process; hydrogen peroxide catabolic process; inhibition of NF-kappaB transcription factor; negative regulation of apoptosis; osteoblast differentiation; positive regulation of cell division; positive regulation of phosphoinositide 3-kinase cascade; protein homotetramerization; protein tetramerization; purine nucleotide catabolic process; response to activity; response to cadmium ion; response to drug; response to estradiol stimulus; response to ethanol; response to hydrogen peroxide; response to hyperoxia; response to hypoxia; response to inactivity; response to insulin stimulus; response to L-ascorbic acid; response to lead ion; response to light intensity; response to ozone; response to reactive oxygen species; response to vitamin A; response to vitamin E; triacylglycerol metabolic process; ureteric bud development; UV protection

Disease: Acatalasemia