D-proline reductase (dithiol)

This enzyme belongs to the family of oxidoreductases, specifically those acting on X-H and Y-H to form an X-Y bond with a disulfide as acceptor. The systematic name of this enzyme class is 5-aminopentanoate:lipoate oxidoreductase (cyclizing). This enzyme participates in arginine and proline metabolism. It employs one cofactor, pyruvate.

References

Hodgins DS, Abeles RH (1969). "Studies of the mechanism of action of D-proline reductase: the presence on covalently bound pyruvate and its role in the catalytic process". Arch. Biochem. Biophys. 130 (1): 274–85. doi:10.1016/0003-9861(69)90034-4. PMID 5778643.
Stadtman TC, Elliott P (1957). "Studies on the enzymic reduction of amino acids. II. Purification and properties of a D-proline reductase and a proline racemase from Clostridium sticklandii". J. Biol. Chem. 228: 983–997. PMID 13475375.
JR, Pich A; Gräntzdörffer, A; Schierhorn, A; Rücknagel, KP; Andreesen, JR; Pich, A (1999). "Identification of D-proline reductase from Clostridium sticklandii as a selenoenzyme and indications for a catalytically active pyruvoyl group derived from a cysteine residue by cleavage of a proprotein". J. Biol. Chem. 274 (13): 8445–54. doi:10.1074/jbc.274.13.8445. PMID 10085076.

Other oxidoreductases (EC 1.15-1.21)

1.15: Acting on superoxide as acceptor	Superoxide dismutase SOD1 SOD2 SOD3

1.16: Oxidizing metal ions	Ceruloplasmin

1.17: Acting on CH or CH2 groups	Xanthine oxidase Ribonucleotide reductase 4-Hydroxy-3-methylbut-2-enyl diphosphate reductase

1.18: Acting on iron-sulfur proteins as donors	Nitrogenase

1.19: Acting on reduced flavodoxin as donor	Nitrogenase (flavodoxin)

1.20: Acting on phosphorus or arsenic in donors	Glutaredoxin GLRX GLRX2 GLRX3 GLRX5

1.21: Acting on X-H and Y-H to form an X-Y bond	Isopenicillin N synthase Columbamine oxidase Reticuline oxidase Sulochrin oxidase (+)-bisdechlorogeodin-forming (-)-bisdechlorogeodin-forming Aureusidin synthase Tetrahydrocannabinolic acid synthase Cannabidiolic acid synthase Dichlorochromopyrrolate synthase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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