Biochemistry

In this reaction the following happens, the aldehyde group of glyceraldehyde- 3-phosphate is converted to carboxyl with the release of energy that is stored in ATP. The formation of ATP from high-energy compounds is called substrate phosphorylation. 1,3 Diphosphoglycerate 3-Phosphoglycerate (3-phosphoglycerol acid) 0 0 // // C — O~PO 3 H, 1 phosphoroglycerate kinase C — OH 1 H — С — ОН + АДФ ---------------- ; ------------ < ----------------------------- H — C — OH 1 + АДФ H 2 C — 0 — -PO 3 H 2 H 2 C — 0 — PO 3 H 2 Under the action of the enzyme phosphoglycerate phosphomutase (phosphoglycero mutase), 3-phosphoglycerol acid is converted to 2- phosphoglycerol acid, which is then dehydrated under the influence of the enzyme enolase and becomesthe enolic form of 2-phosphopyruvic acid. 3 -Phosphoglycerate 0 0 // // c — OH C — OH 1 phosphoglycerate mutase 1 H — c — OH ------------- у H — C — 0 — PO 3 H 2 1 H 2 C — 0- • PO 3 H 2 1 H 2 C — OH 2-Phosphoglycerate COOH I H — C — О — PO 3 H 2 I H 2 C — OH 2-Phosphoglycerate (2-phosphoglycerol acid) COOH — H — c — О ~ PO 4 H, II CH 2 Enol form of phosphopyruvic acid (phosphoenolpyruvate) 224