大肠杄菌中六种人体必需氨基酸 由草酰乙酸和丙酮酸合成 Met、Thr、Lys、Ie、 Val and leu
大肠杆菌中六种人体必需氨基酸 由草酰乙酸和丙酮酸合成 Met、Thr、Lys、Ile、 Val and Leu
草酰乙酸 P y 酸体 nr HeyH-H-ors 的必 需氨 细菌中六种 0 H eCu君从e ols KIl Met lle Val Ly el
细 菌 中 六 种 人 体 必 需 氨 基 酸 的 合 成 Asp Py Lys Met Thr Ile Val Leu 草酰乙酸
NHs Aspartate C-CH2-CH--COO ATP ADP NHs spartyl-B-phosphate C—CH2-CH—COO NADPH+H+ NADP C—CH-CH—COO Aspartate B-semialdehyde NADPH+H+ C-CHo-CH-C00 NADP Aspartate B-semialdehyde CH2-CH2-CH-Co0 Homoserine
NHo (P-0-CH2-CH2-CH-COO PhosphohomoserineThreonine CH,-CH-CH-CO0 ADP OH P ATP PLP H2O NHs CH2-CH2-CH--Coo Homoserine NHs OH (0-CH2-CH2-CH-Co0" Phosphohomoserine NH3 NH CH-CH2-CH--CO0 Homoserine CH2-CH2-CH-Co0 0-Succinylhomoserine OH o-Succinate steine Succinyl-CoA PLP Succinate NH NH H2C-S-CH2-CH2-CH--CO0 Cystathionine CH.--CH2-CH-CO0 0-Succiny lhomoserine H-c-NH3 O-Succinate COO
Pyruvate H.C-S-CH2-CH2-CH-CO0 Cystathionine Aspartate B-semialdehyde H-C-NH3 NHs COO OoC-C-CH2-C--CH2-CH--COO PLP Pyruvate NH3 HO H NH H COO HS-CHo-CH2-CH-Co Homocysteine Dihydropicolinate NHe HS—CH。-CH2—CH-CO0 Homocysteine N-Methyl H folate NADPH +H NAl NH OOCN C00 O0C/N CO0 Ha-s-CH2-CH2-CH--CO0 Dihydropicolinate Methionine