Abstract: Compositions and methods are provided for the treatment and diagnosis of diseases associated with protein kinase C. Oligonucleotides are provided which are specifically hybridizable with a PKC gene or mRNA. Oligonucleotides specifically hybridizable with a particular PKC isozyme, set of isozymes or mRNA transcript are provided. Methods of treating conditions amenable to therapeutic intervention by modulating protein kinase C expression with an oligonucleotide specifically hybridizable with a PKC gene or mRNA are disclosed. Compositions and methods are provided for the treatment, detection and diagnosis of diseases associated with protein kinase C alpha and specific transcripts thereof. New nucleic acid sequences are provided which encode 3' untranslated regions of human protein kinase C alpha polynucleotide probes for PKC alpha are also disclosed.