Arginase Type II (ARG2) Human Recombinant Protein

Arginase catalyzes the hydrolysis of arginine to ornithine and urea. At least two isoforms of mammalian arginase exists (types I and II) which differ in their tissue distribution, subcellular localization, immunologic crossreactivity and physiologic function. The type II isoform encoded by this gene, is located in the mitochondria and expressed in extra-hepatic tissues, especially kidney. The physiologic role of this isoform is poorly understood; it is thought to play a role in nitric oxide and polyamine metabolism. Transcript variants of the type II gene resulting from the use of alternative polyadenylation sites have been described. [provided by RefSeq, Jul 2008]

ARG2: May play a role in the regulation of extra-urea cycle arginine metabolism and also in down-regulation of nitric oxide synthesis. Extrahepatic arginase functions to regulate L-arginine bioavailability to NO synthase. Since NO synthase is found in the penile corpus cavernosum smooth muscle, the clitoral corpus cavernosum and the vagina, arginase II plays a role in both male and female sexual arousal. It is therefore a potential target for the treatment of male and female sexual arousal disorders. Belongs to the arginase family.

Protein type: EC 3.5.3.1; Amino Acid Metabolism - arginine and proline; Mitochondrial; Hydrolase

Chromosomal Location of Human Ortholog: 14q24.1

Cellular Component: mitochondrion; mitochondrial matrix

Molecular Function: metal ion binding; arginase activity

Biological Process: striated muscle contraction; arginine metabolic process; ureteric bud development; nitric oxide biosynthetic process; urea cycle