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: In cells co - expressing high levels of the p38 ( MAPK ) kinase ( MKK3 ) together with the p38 ( MAPK ) , a significant inhibition of mitogen - induced cyclin D1 expression was observed .

Answer: cyclin D1

Question: The Sty1 kinase is stimulated by a variety of different stress conditions including osmotic and oxidative stress and heat shock .

Answer: Sty1 kinase

Question: The c - raf - 1 proto - oncogene is the cellular homologue of v - raf , the oncogene of the acutely transforming retrovirus 3611 - MSV .

Answer:
v - raf