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]
Subcellular localization of CAT (and its protein):
Gene Ontology (GO) terms for CAT:
| Interacting Gene | Interaction | Source/Score |
| Name |
|---|
| 630 Glyoxylate and dicarboxylate metabolism [PATH:hsa00630] |
| 380 Tryptophan metabolism [PATH:hsa00380] |
| 4068 FoxO signaling pathway [PATH:hsa04068] |
| 4146 Peroxisome [PATH:hsa04146] |
| 5014 Amyotrophic lateral sclerosis (ALS) [PATH:hsa05014] |
| Name |
|---|
| Cellular responses to stress |
| Detoxification of Reactive Oxygen Species |
| Metabolism |
| Metabolism of nucleotides |
| Purine catabolism |
| Purine metabolism |
| Disease | Score | NofPmids | NofSnps | Source |
| Acatalasia | 0.362442977 | 12 | 0 | BeFree_CLINVAR_CTD_human_ORPHANET |
| Hypertensive disease | 0.219369519 | 18 | 0 | BeFree_CTD_human_GAD_LHGDN_RGD |
| Kidney Failure, Chronic | 0.202638474 | 5 | 0 | BeFree_CTD_human_GAD_RGD |
| Fatty Liver | 0.200271442 | 3 | 0 | BeFree_CTD_human_RGD |
| Hyperthyroidism | 0.2 | 2 | 0 | CTD_human_RGD |
| Reperfusion Injury | 0.2 | 6 | 0 | CTD_human_RGD |
| Myocardial Infarction | 0.2 | 2 | 0 | CTD_human_RGD |
| Brain Ischemia | 0.2 | 2 | 0 | CTD_human_RGD |
| Diabetes Mellitus, Experimental | 0.2 | 4 | 0 | CTD_human_RGD |
| Myocardial Reperfusion Injury | 0.2 | 2 | 0 | CTD_human_RGD |
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