instruction:
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.
question:
 Activation of the cytotactin promoter by the homeobox - containing gene Evx - 1 .
answer:
cytotactin promoter


question:
 To study the mechanisms and the signaling pathways involved , IGF - 1R promoter reporter constructs were transiently transfected in CHO - AT1 cells that overexpress angiotensin AT1 receptors .
answer:
angiotensin AT1 receptors


question:
 Analysis of exon 2 of the factor IX gene revealed a C - - > T mutation in codon 10 of the propeptide region , resulting in the substitution of alanine by valine .
answer:

factor IX gene