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.

 Uptake of colicins required different domains in TonB , for colicin B and M around residue 160 and for colicin Ia , a domain closer to the C - terminal end .
colicin Ia

 But if one equalizes the upper limits of normal for both markers to a common 95 % specificity , the tumour - indicating sensitivity of CA 19 - 9 clearly surpasses that of CA 50 .
CA 50

 However , an analogous myristoylated peptide derived from c - Yes also has no inhibitory activity .

c - Yes