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: To gain additional insights into this novel apoptotic checkpoint , we have now characterized the mouse survivin locus .

Answer: mouse survivin locus

Question: Human and murine cytotoxic T lymphocyte serine proteases : subsite mapping with peptide thioester substrates and inhibition of enzyme activity and cytolysis by isocoumarins .

Answer: serine proteases

Question: The deduced amino - acid sequence of the mature enzyme showed very low homology ( < 20 . 4 % identity ) to those of known pectinolytic enzymes in the large pectate lyase superfamily ( the polysaccharide lyase family 1 ) .

Answer:
pectate lyase superfamily