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.
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Question:  We have previously reported the first isolation of a c - myc - null cell line .

Answer: c - myc


Question:  The level of expression of the PDE protein was monitored by immunoblot analysis using two specific cAMP - PDE polyclonal antibodies and by measuring the PDE activity .

Answer: PDE protein


Question:  Extracellular regulated kinases ( ERK ) 1 and ERK2 are authentic substrates for the dual - specificity protein - tyrosine phosphatase VHR .

Answer:
tyrosine phosphatase