IMMUNOREACTIVITY OF PKC-GAMMA,LAMBDA AND RACK1 IN BAKERS-YEAST, LOBSTER AND WHEAT-GERM

Varied patterns of immunoreactive bands of protein kinase C gamma (PKC gamma) and receptor for activated C-kinase-1 (RACK1) were detected by analysis of Western blots in crude extracts of wheat germ, lobster tai l meat, and three strains of baker's yeast. Anti-PKClambda also reacte d with wheat germ and yeast extracts, but failed to react with the lob ster extract. The findings may implicate a regulatory role and an evol utionary conservation of these PKC isoenzymes and their receptor prote ins in eukaryotes.