Protein Domain : YjeF N-terminal domain IPR004443

Type	Domain
Description	In bacteria or archaea, YjeF N-terminal domains occur either as single proteins or fused with other domains and are commonly associated with enzymes. YjeF N-terminal domains are often fused to a YjeF C-terminal domain. It is a bifunctional enzyme that catalyses the epimerisation of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP [ ]. Structurally, YjeF N-terminal domains represent a novel version of the Rossmann fold, one of the most common protein folds in nature. The YjeF N-terminal domain is comprised of a three-layer α-β-alpha sandwich with a central β-sheet surrounded by helices. This domain contains a putative catalytic site [ ]. The YjeF N-terminal domain is homologous to AIBP in mammals and YNL200C in budding yeasts. AIBP and YNL200C are NAD(P)H-hydrate epimerases that catalyses the epimerisation of the S- and R-forms of NAD(P)HX, at the expense of ATP, which is converted to ADP [ ]. Some proteins known to contain a YjeF N-terminal domain are listed below: Escherichia coli hypothetical protein YjeF. Thermotoga maritima hypothetical protein Tm0922. Yeast uncharacterised protein YNL200C. Yeast enhancer of mRNA-decapping protein 3 (EDC3). Vertebrate enhancer of mRNA-decapping protein 3 (EDC3).Mammalian apolipoprotein A-I binding protein (AI-BP).
Short Name	YjeF_N_dom