v5.1.0.3
Glycine data from LIS
Type | Domain |
Description | The aldo-keto reductase family includes a number of related monomeric NADPH-dependent oxidoreductases, such as aldehyde reductase, aldose reductase, prostaglandin F synthase, xylose reductase, rho crystallin, and many others [ ]. All possess a similar structure, with a β-α-β fold characteristic of nucleotide binding proteins []. The fold comprises a parallel β-8/α-8-barrel, which contains a novel NADP-binding motif. The binding site is located in a large, deep, elliptical pocket in the C-terminal end of the β-sheet, the substrate being bound in an extended conformation. The hydrophobic nature of the pocket favours aromatic and apolar substrates over highly polar ones [ ].Binding of the NADPH coenzyme causes a massive conformational change, reorienting a loop, effectively locking the coenzyme in place. This binding is more similar to FAD- than to NAD(P)-binding oxidoreductases [ ].Some proteins of this entry contain a K+ ion channel beta chain regulatory domain; these are reported to have oxidoreductase activity [ ]. This entry represents the NADP-dependent oxidoreductase domain found in these proteins. |
Short Name | NADP_OxRdtase_dom |