Arginase
From Proteopedia
(Difference between revisions)
(New page: <StructureSection load='1hqg' size='340' side='right' caption='Structure of rat arginase containing Mn+2 complex with ornithine and urea (PDB code 1hqg).' scene=''> == Function == '...) |
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- | + | <StructureSection load='1hqg' size='400' side='right' caption='Structure of rat arginase containing Mn+2 (purple) complex with ornithine (cyan) and urea (yellow) (PDB code [[1hqg]]).' scene='59/593950/Cv/1'> | |
- | <StructureSection load='1hqg' size=' | + | |
== Function == | == Function == | ||
- | '''Arginase''' (Arg) catalyzes the conversion of arginine to ornithine and urea. Arg is the final enzyme in the urea cycle. Arg requires 2 manganese ions for functioning. | + | '''Arginase''' (Arg) catalyzes the conversion of arginine to ornithine and urea. Arg is the final enzyme in the urea cycle. Arg requires 2 manganese ions for functioning.<ref>PMID:18360740</ref> |
== Disease == | == Disease == | ||
- | + | Arg deficiency is an inherited disorder causing the accumulation of toxic urea in the blood. | |
== Structural highlights == | == Structural highlights == | ||
+ | |||
+ | The manganese ions are located at the bottom of a 15A cleft. <scene name='59/593950/Cv/4'>Active site</scene>. The proposed reaction mechanism involves <scene name='59/593950/Cv/5'>H141, D128, E277</scene> in rat.<ref>PMID:11258880</ref> | ||
==3D structures of arginase== | ==3D structures of arginase== | ||
+ | [[Arginase 3D structures]] | ||
- | + | </StructureSection> | |
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== References == | == References == |
Current revision
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References
- ↑ Dowling DP, Di Costanzo L, Gennadios HA, Christianson DW. Evolution of the arginase fold and functional diversity. Cell Mol Life Sci. 2008 Jul;65(13):2039-55. doi: 10.1007/s00018-008-7554-z. PMID:18360740 doi:http://dx.doi.org/10.1007/s00018-008-7554-z
- ↑ Cox JD, Cama E, Colleluori DM, Pethe S, Boucher JL, Mansuy D, Ash DE, Christianson DW. Mechanistic and metabolic inferences from the binding of substrate analogues and products to arginase. Biochemistry. 2001 Mar 6;40(9):2689-701. PMID:11258880