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.

[EX Q]:  Engineering temperature - sensitive SH3 domains .
[EX A]: SH3 domains

[EX Q]:  The yeast genome contains a single ORD1 gene that resides on chromosome XI .
[EX A]: ORD1 gene

[EX Q]:  These larger sizes , however , are consistent with predictions from the DNA sequence of the pol gene .
[EX A]:
pol gene