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]:  BACKGROUND : Recent iterative methods for sequence alignment have indicated that the 380 kDa motor unit of dynein belongs to the AAA class of chaperone - like ATPases .
[EX A]: AAA class

[EX Q]:  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 .
[EX A]: colicin Ia

[EX Q]:  Footprints on the HPV 18 enhancer show five protected regions with homologies to NF1 , AP1 and EFII transcription factor binding motifs .
[EX A]:
HPV 18 enhancer