Photoaffinity probes PPDA and PPTD, which have diazoacetyl and trifluo
rodiazopropionyl group at C-13 position in phorbol, respectively, were
synthesized. Photoaffinity labeling of protein kinase C isozymes by b
oth the probes resulted in specific cross-linking. (C) 1998 Elsevier S
cience Ltd. All rights reserved.