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.

Input: Consider Input:  It is hypothesized this occurs through antagonism of PML / RAR alpha actions in these leukemic cells .

Output: RAR alpha


Input: Consider Input:  Interestingly , unlike PAK65 , HPK1 does not contain the small GTPase Rac1 / Cdc42 - binding domain and does not bind to either Rac1 or Cdc42 , suggesting that HPK1 . activation is Rac1 / Cdc42 - independent .

Output: small GTPase


Input: Consider Input:  A V1 mutant generated in vivo with 11 of the 14 N - terminal amino acids altered , was viable and produced symptoms typical of a wild - type infection .


Output: V1 mutant