Entry
Name
D-2-hydroxyacid dehydrogenase (NADP+);
ddh (gene name)
Class
Oxidoreductases;
Acting on the CH-OH group of donors;
With NAD+ or NADP+ as acceptor
BRITE hierarchy
Sysname
(R)-2-hydroxycarboxylate:NADP+ oxidoreductase
Reaction(IUBMB)
an (R)-2-hydroxycarboxylate + NADP+ = a 2-oxocarboxylate + NADPH + H+ [RN:
R10528 ]
Reaction(KEGG)
Substrate
Product
Comment
This enzyme, characterized from the halophilic archaeon Haloferax mediterranei and the mold Aspergillus oryzae, catalyses a stereospecific reduction of 2-oxocarboxylic acids into the corresponding D-2-hydroxycarboxylic acids. The enzyme prefers substrates with a main chain of 5 carbons (such as 4-methyl-2-oxopentanoate) to those with a shorter chain, and can use NADH with much lower efficiency. cf. EC
1.1.1.345 , (D)-2-hydroxyacid dehydrogenase (NAD+).
History
EC 1.1.1.272 created 2002, modified 2013
Orthology
K17064 D-2-hydroxyacid dehydrogenase (NADP+)
Genes
HHB : Hhub_1992(ddh1) Hhub_4287(ddh2)
HJE : HacjB3_09750 HacjB3_13315 HacjB3_18943
HALX : M0R89_08670 M0R89_21255
HAAD : MW046_10035 MW046_18195
HAQ : DU484_03700 DU484_04865
HAJ : DU500_04185 DU500_05305
HAER : DU502_01655 DU502_02695
HRA : EI982_10885 EI982_11715
HLM : DV707_07845 DV707_14950
HALQ : Hrr1229_010840 Hrr1229_013535
HALG : HUG10_07745 HUG10_15100
HALU : HUG12_08505 HUG12_18220 HUG12_19825
HRE : K6T36_14320 K6T36_17835
NOU : Natoc_2479 Natoc_4312
» show all
Taxonomy
Reference
Authors
Domenech J, Ferrer J
Title
A new D-2-hydroxyacid dehydrogenase with dual coenzyme-specificity from Haloferax mediterranei, sequence analysis and heterologous overexpression.
Journal
Sequence
Reference
Authors
Shimizu M, Yamamoto T, Okabe N, Sakai K, Koide E, Miyachi Y, Kurimoto M, Mochizuki M, Yoshino-Yasuda S, Mitsui S, Ito A, Murano H, Takaya N, Kato M
Title
Novel 4-methyl-2-oxopentanoate reductase involved in synthesis of the Japanese sake flavor, ethyl leucate.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 1.1.1.272