Data for the synthesis of oligo-?-glutamylglutamines as model compounds for ?-glutamyltransferases (GGTs) and for normalization of activities of different GGTs,

?-Glutamyltransferases (GGTs) are widespread, conserved enzymes that catalyze the transfer of the ?-glutamylmoiety from a donor substrate to water(hydrolysis) or to an acceptor aminoacid(trans-peptidation) through the formation of a ?-glutamylenzyme intermediate.