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1.3.1.34: 2,4-dienoyl-CoA reductase [(2E)-enoyl-CoA-producing]

This is an abbreviated version!
For detailed information about 2,4-dienoyl-CoA reductase [(2E)-enoyl-CoA-producing], go to the full flat file.

Word Map on EC 1.3.1.34

Reaction

a (2E)-2-enoyl-CoA
+
NADP+
=
a (2E,4E)-2,4-dienoyl-CoA
+
NADPH
+
H+

Synonyms

2,4-dienoyl coenzyme A reductase, 2,4-dienoyl-CoA reductase, 2,4-dienoyl-CoA reductase (NADPH), 2,4-dienoyl-CoA reductase [NADPH], 4-enoyl-CoA reductase (NADPH), 4-enoyl-CoA reductase [NADPH], DCR, DECR, FADH, pDCR, peroxisomal 2,4-dienoyl CoA reductase

ECTree

     1 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.1 With NAD+ or NADP+ as acceptor
                1.3.1.34 2,4-dienoyl-CoA reductase [(2E)-enoyl-CoA-producing]

Crystallization

Crystallization on EC 1.3.1.34 - 2,4-dienoyl-CoA reductase [(2E)-enoyl-CoA-producing]

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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
15 mg/ml purified recombinant enzyme, hanging drop vapour diffusion method, reservoir solution: 30% PEG 5000 monomethyl ether, 0.2 M sodium acetate, 0.1 M ammonium sulfate, 0.1 M 3-(N-morpholino)ethane sulfonic acid, pH 6.5, precipitant solution: 18% PEG 5000 monomethyl ether, 180 mM sodium acetate, 90 mM ammonium sulfate, 90 mM 3-(N-morpholino)ethane sulfonic acid, mixture in a ratio 1:1.5, 1 week, no cryoprotection, X-ray diffraction structure determination and analysis at 2.2 A resolution, heavy atom derivatives
-
the crystal structure of a ternary complex of peroxisomal 2,4-dienoyl CoA reductases (pDCR) with hexadienoyl CoA and NADP is described. The structure of pDCR refined to 1.84 A resolution reveals the absence of the tyrosine-serine pair seen in the active site of mitochondrial DCR. Instead, aspartate hydrogen-bonded to the Calpha hydroxyl via a water molecule perturbs the water molecule for protonation of the substrate