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]:  PCC 6803 mutant impaired in cytochrome c maturation .
[EX A]: cytochrome c

[EX Q]:  Glutathione reductase activities in liver , kidney , lung , and brain were not affected by diet .
[EX A]: Glutathione reductase

[EX Q]:  Gene GPR 51 was localized by radiation hybrid mapping to chromosome 9 , 4 . 81 cR from the WI - 8684 marker , and proximal to the hereditary sensory neuropathy type 1 locus .
[EX A]:
Gene GPR 51