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D-nopaline dehydrogenase

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D-nopaline dehydrogenase
Identifiers
EC no.1.5.1.19
CAS no.64763-57-1
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In enzymology, a D-nopaline dehydrogenase (EC 1.5.1.19) is an enzyme that catalyzes the chemical reaction

N2-(D-1,3-dicarboxypropyl)-L-arginine + NADP + H2O {\displaystyle \rightleftharpoons } L-arginine + 2-oxoglutarate + NADPH + H

The 3 substrates of this enzyme are N2-(D-1,3-dicarboxypropyl)-L-arginine, NADP, and H2O, whereas its 4 products are L-arginine, 2-oxoglutarate, NADPH, and H.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is N2-(D-1,3-dicarboxypropyl)-L-arginine:NADP+ oxidoreductase (L-arginine-forming). Other names in common use include D-nopaline synthase, nopaline dehydrogenase, nopaline synthase, NOS, 2-N-(D-1,3-dicarboxypropyl)-L-arginine:NADP+ oxidoreductase, and (L-arginine-forming). This enzyme participates in arginine and proline metabolism.

References

  • Kemp JD, Sutton DW, Hack E (1979). "Purification and characterization of the crown gall specific enzyme nopaline synthase". Biochemistry. 18 (17): 3755–60. doi:10.1021/bi00584a017. PMID 476084.
Oxidoreductases: CH-NH (EC 1.5)
1.5.1: NAD or NADP acceptor
1.5.3: oxygen acceptor
1.5.5: quinone acceptor
1.5.99
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