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.

Example Input:  Northern analyses further confirm that the expression of endogenous alpha - ENaC gene in salivary Pa - 4 cells is suppressed by an ectopic HMGI - C overexpression .
Example Output: HMGI - C

Example Input:  Upstream tissue inhibitor of metalloproteinases - 1 ( TIMP - 1 ) element - 1 , a novel and essential regulatory DNA motif in the human TIMP - 1 gene promoter , directly interacts with a 30 - kDa nuclear protein .
Example Output: TIMP - 1

Example Input:  These data suggested that mutant PS1 may cause disease as a result of reduction in PS1 function .
Example Output:
mutant PS1