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]: Mutation of the HNF3 element significantly reduced promoter activity in HepG2 cells , whereas this element in isolation conferred HNF3beta responsiveness to a heterologous promoter .
[A]: HNF3 element

[Q]: Penicillamine - induced myasthenia gravis associated with antibodies to acetylcholine receptor .
[A]: acetylcholine receptor

[Q]: Muscle and liver biopsies demonstrated the same anomalies , again without branching enzyme deficiency in the liver .
[A]:
branching enzyme