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.

Example Input: To clone cDNAs for the beta subunit of rabbit eIF - 2B , amino acid sequence data was first obtained and used to design redundant oligonucleotide primers for use in PCR .
Example Output: eIF - 2B

Example Input: 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 .
Example Output: superoxide dismutase

Example Input: Excess recombinant PTB squelches the splicing switch and reestablishes exon skipping as the predominant splicing pathway .
Example Output:
recombinant PTB