Jzj. Wu et al., COMPARISON OF THE INTRINSIC KINASE-ACTIVITY AND SUBSTRATE-SPECIFICITYOF C-ABL AND BCR-ABL, Bioorganic & medicinal chemistry letters, 8(17), 1998, pp. 2279-2284
We studied the intrinsic tyrosine kinase activity and substrate specif
icity of c-Abl and Bcr-Abl protein tyrosine kinases (PTKs) using the p
eptide substrates discovered from a synthetic combinatorial peptide li
brary. Our data indicate that the phosphorylation of these peptides by
Bcr-Abl was consistently stronger than that by c-Abl. Bcr-Abl also sh
owed substrate preference towards those peptides with one or more posi
tive charges. (C) 1998 Elsevier Science Ltd. All rights reserved.