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PON1
Hydrolyzes the toxic metabolites of a variety of organophosphorus insecticides. Capable of hydrolyzing a broad spectrum of organophosphate substrates and lactones, and a number of aromatic carboxylic acid esters. Mediates an enzymatic protection of low density lipoproteins against oxidative modification and the consequent series of events leading to atheroma formation. Belongs to the paraoxonase family. Plasma, associated with HDL (at protein level). Expressed in liver, but not in heart, brain, placenta, lung, skeletal muscle, kidney or pancreas. Note: This description may include information from UniProtKB.
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| Protein type: EC 3.1.1.2; EC 3.1.1.81; EC 3.1.8.1; Hydrolase; Lipid-binding; Motility/polarity/chemotaxis; Phosphatase (non-protein); Secreted; Secreted, signal peptide |
| Chromosomal Location of human Ortholog: 7q21.3 |
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Cellular Component:
endoplasmic reticulum membrane; extracellular region; extracellular space; high-density lipoprotein particle; spherical high-density lipoprotein particle
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Molecular Function:
acyl-L-homoserine-lactone lactonohydrolase activity; aryldialkylphosphatase activity; arylesterase activity; calcium ion binding; phospholipid binding; protein homodimerization activity
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Biological Process:
aromatic compound catabolic process; carboxylic acid catabolic process; cholesterol metabolic process; negative regulation of plasma lipoprotein oxidation; organophosphate catabolic process; phosphatidylcholine metabolic process; positive regulation of binding; positive regulation of cholesterol efflux; positive regulation of transporter activity; response to fatty acid; response to fluoride; response to nutrient levels; response to toxic substance
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Disease: Microvascular Complications Of Diabetes, Susceptibility To, 5
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Reference #:
P27169
(UniProtKB)
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Alt. Names/Synonyms: A-esterase 1; Aromatic esterase 1; arylesterase 1; arylesterase B-type; ESA; esterase A; K-45; MVCD5; paraoxonase 1; paraoxonase B-type; PON; PON 1; PON1; serum aryldiakylphosphatase; Serum aryldialkylphosphatase 1; Serum paraoxonase/arylesterase 1
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Gene Symbols: PON1
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Molecular weight:
39,731 Da
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Basal Isoelectric point:
5.08
Predict pI for various phosphorylation states
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