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]: A signaling complex of Ca2 + - calmodulin - dependent protein kinase IV and protein phosphatase 2A [ see comments ]
[A]: protein phosphatase 2A

[Q]: In contrast , the binding of [ 3H ] DEX to C7 cytosol revealed a single class of binding sites ( Kd = 1 . 9 nM ; receptor concentration , 0 . 46 pmol / mg protein ) .
[A]: binding sites

[Q]: The apparent paradox of heightened adrenal corticosteroid levels associated with reduction in the competence of the body ' s defensive apparatus to cope with exposure to new microbial antigens is considered .
[A]:
microbial antigens