N5-methyl--tetrahydropteroyl tri-L-glutamate
Vitamin B12 dependent methionine synthase, activation domain protein
L-Cystathionine → 2-aminoprop-2-enoate + Homocysteine + Hydrogen Ion
Homocysteine + S-Methylmethionine ↔ Hydrogen Ion + 2 L-Methionine
Hydrogen Ion + L-Aspartate-semialdehyde + NADPH → L-Homoserine + NADP
Homocysteine + N5-methyl--tetrahydropteroyl tri-L-glutamate → L-Methionine + Tetrahydropteroyltri-L-glutamate
N5-methyl--tetrahydropteroyl tri-L-glutamate + Homocysteine → L-Methionine + Tetrahydropteroyltri-L-glutamate
ATPase/histidine kinase/DNA gyrase B/HSP90 domain protein
5-methyltetrahydrofolate--homocysteine methyltransferase
O-acetylhomoserine aminocarboxypropyltransferase
L-Cysteine + O-succinyl-L-homoserine → Hydrogen Ion + L-Cystathionine + Succinic acid
L-Homoserine + Succinyl-CoA → Coenzyme A + O-succinyl-L-homoserine
L-Methionine (→), Hydrogen Ion (←) Transport: Bacteroides sp. D20, Cytosol to Bacteroides sp. D20, Periplasmic Space
O-succinylhomoserine(thiol)-lyase / O-succinylhomoserine lyase
aspartate kinase / homoserine dehydrogenase
cystathionine-β-lyase / L-cysteine desulfhydrase
bifunctional β-cystathionase, PLP-dependent and regulator of maltose regulon