Protein Family Models

Acetohydroxy acid isomeroreductase catalyses the conversion of acetohydroxy acids into dihydroxy valerates. This reaction is the second in the synthetic pathway of the essential branched side chain amino acids valine and isoleucine. This N-terminal region of the enzyme carries the binding-site for NADPH. The active-site for enzymatic activity lies in the C-terminal part, IlvC, Pfam:PF01450. [1]. 9218783. The crystal structure of plant acetohydroxy acid isomeroreductase complexed with NADPH, two magnesium ions and a herbicidal transition state analog determined at 1.65 A resolution. Biou V, Dumas R, Cohen-Addad C, Douce R, Job D, Pebay-Peyroula E;. EMBO J 1997;16:3405-3415. [2]. 16322583. The crystal structure of a bacterial class II ketol-acid reductoisomerase: domain conservation and evolution. Tyagi R, Duquerroy S, Navaza J, Guddat LW, Duggleby RG;. Protein Sci. 2005;14:3089-3100. [3]. 19362563. Conformational changes in a plant ketol-acid reductoisomerase upon Mg(2+) and NADPH binding as revealed by two crystal structures. Leung EW, Guddat LW;. J Mol Biol. 2009;389:167-182. (from Pfam)

Date:

2024-10-16

Date:

2024-08-14

The NAD binding domain of 6-phosphogluconate dehydrogenase adopts a Rossmann fold. (from Pfam)

Date:

2024-08-14

This domain is inserted into the catalytic domain, the large dehydrogenase and D-lactate dehydrogenase families in SCOP. N-terminal portion of which is represented by family Pfam:PF00389. [1]. 9126843. Crystal structure of a ternary complex of D-2-hydroxyisocaproate dehydrogenase from Lactobacillus casei, NAD+ and 2-oxoisocaproate at 1.9 A resolution. Dengler U, Niefind K, Kiess M, Schomburg D;. J Mol Biol 1997;267:640-660. (from Pfam)

Date:

2024-10-16

NADPH-dependent F420 reductase may be part of a F420-dependent NADP oxidoreductase catalyzing the reduction of NADP(+) with F420H(2) via hydride transfer, as well as the reverse reaction, the reduction of F420 with NADPH

Date:

2024-10-08