O-acetyl-L-serine + L-homocysteine <=> L,L-cystathionine + acetate + H(+)
o-acetyl-l-serine + l-homocysteine <=> l,l-cystathionine + acetate + h(+)
O-acetyl-L-serine + L-homocysteine <=> L,L-cystathionine + acetate + H(+)
o-acetyl-l-serine + l-homocysteine <=> l,l-cystathionine + acetate + h(+)