PON3

This gene is a member of the paraoxonase family and lies in a cluster on chromosome 7 with the other two family members. The encoded protein is secreted into the bloodstream and associates with high-density lipoprotein (HDL). The protein also rapidly hydrolyzes lactones and can inhibit the oxidation of low-density lipoprotein (LDL), a function that is believed to slow the initiation and progression of atherosclerosis. Alternatively spliced variants which encode different protein isoforms have been described; however, only one has been fully characterized.

Paraoxonase 3

Has low activity towards the organophosphate paraxon and aromatic carboxylic acid esters. Rapidly hydrolyzes lactones such as statin prodrugs (e.g. lovastatin). Hydrolyzes aromatic lactones and 5- or 6-member ring lactones with aliphatic substituents but not simple lactones or those with polar substituents.

Aromatic compound catabolic processManual Assertion Based On ExperimentIDA:BHF-UCL
Carboxylic acid catabolic processManual Assertion Based On ExperimentIDA:BHF-UCL
Coumarin catabolic processIEA:Ensembl
Establishment of localization in cellIEA:Ensembl
Negative regulation of superoxide anion generationIEA:Ensembl
Phenylacetate catabolic processIEA:Ensembl
Renal sodium ion transportIEA:Ensembl
Response to toxic substanceManual Assertion Based On ExperimentIBA:GO_Central

Secreted, extracellular space

The signal sequence is not cleaved.