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