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.

Q:  A surge in the rate of ascorbyl radical production , directly correlated with oxyradical stress and an abrupt fall in superoxide dismutase activity in the granuloma , indicates ' switching on ' of a free radical - dependent machinery for the formation of granuloma after vasectomy .

A: superoxide dismutase
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Q:  PtdIns ( 4 , 5 ) P2 synthesis , on the other hand , is only moderately affected even in fab1Delta mutants .

A: fab1Delta mutants
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Q:  Herein , we report that CRE - decoy oligonucleotide treatment results in an increase in the p53 protein level in MCF - 7 human breast cancer cells that express wild - type p53 .

A:
p53 protein
****