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Basic structure of a peroxisome Distribution of peroxisomes (white) in HEK 293 cells during mitosis Peroxisome in rat neonatal cardiomyocyte. A peroxisome (/ p ə ˈ r ɒ k s ɪ ˌ s oʊ m /) [1] is a membrane-bound organelle, a type of microbody, found in the cytoplasm of virtually all eukaryotic cells. [2] [3] Peroxisomes are oxidative ...
A peroxisome is a type of microbody that functions to help the body break down large molecules and detoxify hazardous substances. It contains enzymes like oxidase, react hydrogen peroxide as a byproduct of its enzymatic reactions. Within the peroxisome, hydrogen peroxide can then be converted to water by enzymes like catalase and peroxidase.
847 12359 Ensembl ENSG00000121691 ENSMUSG00000027187 UniProt P04040 P24270 RefSeq (mRNA) NM_001752 NM_009804 RefSeq (protein) NP_001743 NP_033934 Location (UCSC) Chr 11: 34.44 – 34.47 Mb Chr 2: 103.28 – 103.32 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals ...
In plants, the glutathione-ascorbate cycle operates in the cytosol, mitochondria, plastids and peroxisomes. [5] [6] Since glutathione, ascorbate and NADPH are present in high concentrations in plant cells it is assumed that the glutathione-ascorbate cycle plays a key role for H 2 O 2 detoxification.
2878 14778 Ensembl ENSG00000211445 ENSMUSG00000018339 UniProt P22352 P46412 RefSeq (mRNA) NM_002084 NM_001329790 NM_001083929 NM_008161 NM_001329860 RefSeq (protein) NP_001316719 NP_002075 NP_001316789 NP_032187 Location (UCSC) Chr 5: 151.02 – 151.03 Mb Chr 11: 54.79 – 54.8 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Glutathione peroxidase 3 (GPx-3), also known as plasma ...
The peroxisome is an organelle in the cell similar to the lysosome that functions to detoxify the cell. Peroxisomes contain many different enzymes, such as catalase, and their main function is to neutralize free radicals and detoxify drugs. For this reason peroxisomes are ubiquitous in the liver and kidney.
As a peroxiredoxin, PRDX5 has antioxidative and cytoprotective functions during oxidative stress. Overexpression of human PRDX5 has been shown to inhibit peroxide accumulation induced by TNF-alpha, PDGF, and p53 in NIH3T3 and HeLa cells and reduce cell death by exogenous peroxide in multiple organelles of CHO, HT-22, and human tendon cells.
Serine—pyruvate aminotransferase is an enzyme that in humans is encoded by the AGXT gene. [5] [6] [7]This gene is expressed only in the liver and the encoded protein is localized mostly in the peroxisomes, where it is involved in glyoxylate detoxification.