摘要：

Reports on the discovery of a unique subfamily of extracellularly regulated kinase enzymes with the molecular cloning of the c-Jun N-terminal kinase p54. Predicted amino-acid sequences of cDNAs for four p54 clones; Activation of associated kinases; Phosphorylation of c-Jun in situ in response to heat shock; Mitogenic and stress signalling pathways in c-Jun phosphorylation.

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