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 Input:
 Serum creatinine kinase activity was 7 , 800 - 17 , 500 U / l , making acute muscle damage likely , probably rhabdomyolysis .

Ex Output:
creatinine kinase


Ex Input:
 Recombinant propeptides containing mutations of one of the three tryptophan residues were three orders of magnitude less effective as inhibitors of mature cathepsin S than the wild - type propeptide .

Ex Output:
mature cathepsin S


Ex Input:
 Here we report the cloning of the hemF gene , encoding the aerobic coproporphyrinogen III oxidase from Escherichia coli , by functional complementation of a Saccharomyces cerevisiae HEM13 mutant .

Ex Output:

hemF gene