[Glu(-Cys)](n)-Gly + glutathione + H(+) => [Glu(-Cys)](n+1)-Gly + glycine
[glu(-cys)](n)-gly + glutathione + h(+) => [glu(-cys)](n+1)-gly + glycine
[Glu(-Cys)](n)-Gly + glutathione + H(+) => [Glu(-Cys)](n+1)-Gly + glycine
[glu(-cys)](n)-gly + glutathione + h(+) => [glu(-cys)](n+1)-gly + glycine