591-57-1Relevant articles and documents
Chemical and enzymatic methodologies for the synthesis of enantiomerically pure glyceraldehyde 3-phosphates
Gauss, Dominik,Schoenenberger, Bernhard,Wohlgemuth, Roland
, p. 18 - 24 (2014)
Glyceraldehyde 3-phosphates are important intermediates of many central metabolic pathways in a large number of living organisms. d-Glyceraldehyde 3-phosphate (d-GAP) is a key intermediate during glycolysis and can as well be found in a variety of other metabolic pathways. The opposite enantiomer, l-glyceraldehyde 3-phosphate (l-GAP), has been found in a few exciting new pathways. Here, improved syntheses of enantiomerically pure glyceraldehyde 3-phosphates are reported. While d-GAP was synthesized by periodate cleavage of d-fructose 6-phosphate, l-GAP was obtained by enzymatic phosphorylation of l-glyceraldehyde. 1H- and 31P NMR spectroscopy was applied in order to examine pH-dependent behavior of GAP over time and to identify potential degradation products. It was found that GAP is stable in acidic aqueous solution below pH 4. At pH 7, methylglyoxal is formed, whereas under alkaline conditions, the formation of lactic acid could be observed.
N-sulfonyl hydroxamate derivatives as inhibitors of class II fructose-1,6-diphosphate aldolase
Gavalda, Sabine,Braga, Remi,Dax, Chantal,Vigroux, Alain,Blonski, Casimir
, p. 5375 - 5377 (2005)
Dihydroxyacetone-phosphate and phosphonate derivatives were synthesized bearing a N-sulfonyl hydroxamate moiety. The phosphate derivatives represent competitive inhibitors for the class II-FBP aldolase catalyzed reaction, while the phosphonate isosteres are comparatively weaker inhibitors.
Prebiotic synthesis of aminooxazoline-5′-phosphates in water by oxidative phosphorylation
Fernández-García,Grefenstette,Powner
supporting information, p. 4919 - 4921 (2017/07/11)
RNA is essential to all life on Earth and is the leading candidate for the first biopolymer of life. Aminooxazolines have recently emerged as key prebiotic ribonucleotide precursors, and here we develop a novel strategy for aminooxazoline-5′-phosphate synthesis in water from prebiotic feedstocks. Oxidation of acrolein delivers glycidaldehyde (90%), which directs a regioselective phosphorylation in water and specifically affords 5′-phosphorylated nucleotide precursors in upto 36% yield. We also demonstrated a generational link between proteinogenic amino acids (Met, Glu, Gln) and nucleotide synthesis.
Dual Activity of Quinolinate Synthase: Triose Phosphate Isomerase and Dehydration Activities Play Together to Form Quinolinate
Reichmann, Debora,Couté, Yohann,Ollagnier De Choudens, Sandrine
, p. 6443 - 6446 (2015/11/09)
Quinolinate synthase (NadA) is an Fe4S4 cluster-containing dehydrating enzyme involved in the synthesis of quinolinic acid (QA), the universal precursor of the essential coenzyme nicotinamide adenine dinucleotide. The reaction catalyzed by NadA is not well understood, and two mechanisms have been proposed in the literature that differ in the nature of the molecule (DHAP or G-3P) that condenses with iminoaspartate (IA) to form QA. In this article, using biochemical approaches, we demonstrate that DHAP is the triose that condenses with IA to form QA. The capacity of NadA to use G-3P is due to its previously unknown triose phosphate isomerase activity.