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]:  The consensus mammalian ER stress response element ( ERSE ) conserved among grp promoters consists of a tripartite structure CCAAT ( N9 ) CCACG , with N being a strikingly GC - rich region of 9 bp .
[EX A]: grp promoters

[EX Q]:  Indeed , after a single oral dose , the role of the mu - receptor agonist component of the antinociceptive effect of tramadol appears to be minor , with most of the analgesic effect being attributable to nonopioid properties of the parent compound .
[EX A]: mu - receptor

[EX Q]:  ADR1 in extracts made from glucose - repressed and - derepressed cells bound UAS1 DNA with similar affinities despite having greatly different abilities to activate ADH2 gene expression in vivo .
[EX A]:
ADH2 gene