L-cysteinylglycine + 2-oxoglutarate => N-(4-oxoglutaryl)-L-cysteinylglycine + H2O
l-cysteinylglycine + 2-oxoglutarate => n-(4-oxoglutaryl)-l-cysteinylglycine + h2o
L-cysteinylglycine + 2-oxoglutarate => N-(4-oxoglutaryl)-L-cysteinylglycine + H2O
l-cysteinylglycine + 2-oxoglutarate => n-(4-oxoglutaryl)-l-cysteinylglycine + h2o