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]:  We recently described the isolation and characterization of nontoxic PAP mutants , NT123 - 2 , which has a point mutation ( E176V ) in the active site that abolishes enzymatic activity , and NT124 - 3 , which has a nonsense mutation that results in deletion of the C - terminal 25 aa ( W237Stop ) .
[EX A]: PAP mutants

[EX Q]:  No patient demonstrated a decrease in bone marrow fibrosis as determined by serial procollagen ( PC III ) serum level analysis .
[EX A]: PC III

[EX Q]:  Uncertainty exists about the function of these potential isoforms of the Cbfa1 gene .
[EX A]:
Cbfa1 gene