In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 Experimental studies and clinical application of plasma ACTH radioimmunoassay kit without extraction process
plasma ACTH

 We recently described the isolation and characterization of nontoxic PAP mutants , NT123 - 2 , which has a point mutation ( E176V ) in the active site that abolishes enzymatic activity , and NT124 - 3 , which has a nonsense mutation that results in deletion of the C - terminal 25 aa ( W237Stop ) .
PAP mutants

 Signal transduction in fibroblasts stably transformed by [ Val12 ] Ras - - the activities of extracellular - signal - regulated kinase and Jun N - terminal kinase are only moderately increased , and the activity of the delta - inhibitor of c - Jun is not alleviated .

c - Jun