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arginase-1 (hepatic arginase, ARG1)

Contributes 98% of activity in liver Function: - nitrogen metabolism, urea cycle - L-ornithine & urea from L-arginine: step 1/1 - 98% of arginase activity in liver L-arginine + H2O L-ornithine + urea Cofactor: Mn+2 Structure: - homotrimer - belongs to the arginase family Compartment: cytoplasm Alternative splicing: named isoforms=3 Expression: induced by arginine or homoarginine Pathology: - defects in ARG1 are the cause of argininemia

Interactions

molecular events

Related

arginase-1 in serum urea cycle

General

arginase urea cycle enzyme

Properties

SIZE: entity length = 322 aa MW = 35 kD COMPARTMENT: cytoplasm CELL: hepatocyte MOTIF: manganese [Mn]-binding site SITE: 101-101 manganese [Mn]-binding site SITE: 124-124 manganese [Mn]-binding site SITE: 126-126 manganese [Mn]-binding site SITE: 128-128 Ser phosphorylation site {S230} manganese [Mn]-binding site SITE: 232-232 manganese [Mn]-binding site SITE: 234-234

Database Correlations

OMIM correlations MORBIDMAP 608313 UniProt P05089 Pfam PF00491 Entrez Gene 383 ENZYME 3.5.3.1

References

  1. OMIM :accession 207800
  2. GeneReviews https://www.genecards.org/cgi-bin/carddisp.pl?gene=ARG1
  3. Wikipedia, Arginase entry http://en.wikipedia.org/wiki/Arginase
  4. UniProt :accession P05089