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.

[Q]:  Elements regulating cell - and stage - specific expression of the C . elegans MyoD family homolog hlh - 1 .
[A]: hlh - 1


[Q]:  These results provide strong evidence that conserved interhelical packing interactions in the gp41 core are important determinants of HIV - 1 entry and its inhibition .
[A]: gp41 core


[Q]:  The vaccine was highly immunogenic , since 111 of 113 patients ( 98 % ) produced anti - HBs ( 10 mIU / ml or more ) .
[A]:
anti - HBs