D-Glyceric acid 3-phosphate

D-Glyceric acid- D-Glyceric acid-3-phosphate 2-phosphate... 

L-Serine and L-alanine are built from D-glyceric acid 3-phosphate (D 2) by the pathway given in Fig. 166. Glycine is formed from glyoxylic acid which may be... 

Additional evidence for the aldolase reaction being involved in monosaccharide biosynthesis came from the isotope studies of photosynthesis. During short-term photosynthesis, the radioactivity from carbon dioxide appeared in a number of compounds in the following order D-glyceric acid 3-phosphate, triose phosphate, hexose phosphates, and sucrose 70), The distribution of the tracer carbon in these compounds was compatible with... 

The enthalpies for the hydrolysis of a number of glycoside and nucleoside cyclic phosphates have been measured. Photolysis of the disodium salt of a-D-glucopyranose 6-phosphate in aqueous solution furnished a number of products, including D-gluconic acid 6-phosphate, D-arabinofuranose 5-phosphate, D-glyceric acid 3-phosphate, glycolic acid phosphate, phosphoric acid, and... 

D-glyceric acid 2-phosphate isomerisation D-glyceric acid 3-phosphate... 

Partially purified ADP-D-glucose pyrophosphorylase from Chlo-rella pyrenoidosa has been shown to be activated about 20-fold by glyceric acid 3-phosphate. This enzyme appears to be distinct from UDP-D-glucose pyrophosphorylase, which is not activated by gly-cerate 3-phosphate. ... 

Fig. 1. Acid catalyzed phosphate migration of D-glyceric acid 2-phosphate to the 3-phosphate.

The CPPase substrate DMAPP (15) is formed from isopentenyl pyrophosphate (IPP) (14) via the IPP isomerase reaction. It had been assumed that IPP was generated only via mevalonic acid (12) (Fig. 2), but Rohmer discovered another route, 2-C-methyl-D-erythritol 4-phosphate (13) (MEP) pathway (Fig. 2) [22, 23]. A key step in the MEP pathway is the reaction catalyzed by 1-deoxy-D-xylulose 5-phosphate synthase (DXS), which combines hydroxyethyl thiamine pyrophosphate (hydroxyethyl TPP) generated from pyruvic acid (17) and TPP with glyceral-dehyde 3-phosphate (18) to yield 1-deoxy-D-xylulose 5-phosphate (19) containing five carbons. The mevalonate pathway operates in the cytosol of plants and animals, whereas the MEP pathway is present in the plastid of plants or in eubacteria [24-27]. 

Step 6 involves the oxidation of D-glyceraldehyde 3-phosphate, accompanied by phosphorylation of the intermediate carboxylic acid, to produce D-l,3-bisphosphoglycerate. The enzyme is glyceral-dehyde-3-phosphate dehydrogenase. 

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