“1-Pyrroline-5-carboxylate dehydrogenase”的意思、由来-开放百科全书

词条

1-Pyrroline-5-carboxylate dehydrogenase

释义

Structural studies
Human gene
References

{{enzyme
| Name = 1-pyrroline-5-carboxylate dehydrogenase
| EC_number = 1.2.1.88
| CAS_number = 9054-82-4
| IUBMB_EC_number = 1/5/1/12
| GO_code = 0003842
| image =
| width =
| caption =
}}

In enzymology, a 1-pyrroline-5-carboxylate dehydrogenase ({{EC number|1.2.1.88}}) is an enzyme that catalyzes the chemical reaction

(S)-1-pyrroline-5-carboxylate + NAD⁺ + 2 H₂O L-glutamate + NADH + H⁺

The three substrates of this enzyme are (S)-1-pyrroline-5-carboxylate, NAD⁺, and H₂O, whereas its three products are glutamate, NADH, 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 (S)-1-pyrroline-5-carboxylate:NAD⁺ oxidoreductase. Other names in common use include delta-1-pyrroline-5-carboxylate dehydrogenase, 1-pyrroline dehydrogenase, pyrroline-5-carboxylate dehydrogenase, pyrroline-5-carboxylic acid dehydrogenase, L-pyrroline-5-carboxylate-NAD⁺ oxidoreductase, and 1-pyrroline-5-carboxylate:NAD⁺ oxidoreductase. This enzyme participates in glutamate metabolism and arginine and proline metabolism.

Structural studies

As of late 2007, 14 structures have been solved for this class of enzymes, with PDB accession codes {{PDB link|2BHP}}, {{PDB link|2BHQ}}, {{PDB link|2BJA}}, {{PDB link|2BJK}}, {{PDB link|2EHQ}}, {{PDB link|2EHU}}, {{PDB link|2EII}}, {{PDB link|2EIT}}, {{PDB link|2EIW}}, {{PDB link|2EJ6}}, {{PDB link|2EJD}}, {{PDB link|2EJL}}, {{PDB link|2IY6}}, and {{PDB link|2J40}}.

Human gene

In human, the protein is encoded by ALDH4A1 gene.

References

{{cite journal | vauthors = Adams E, Goldstone A | title = Hydroxyproline metabolism. IV. Enzymatic synthesis of gamma-hydroxyglutamate from Delta 1-pyrroline-3-hydroxy-5-carboxylate | journal = The Journal of Biological Chemistry | volume = 235 | pages = 3504–12 | date = December 1960 | pmid = 13681370 }}
{{cite journal | vauthors = Strecker HJ | date = 1960 | title = The interconversion of glutamic acid proline. III Delta1-Pyrroline-5-carboxylic acid dehydrogenase | journal = J. Biol. Chem. | volume = 235 | pages = 3218–3223 }}

{{Amino acid metabolism enzymes}}{{Aldehyde/Oxo oxidoreductases}}{{Enzymes}}{{Portal bar|Molecular and Cellular Biology|border=no}}

2 : EC 1.2.1|Oxidoreductases

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