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:  The atopic disposition , indicated by positive skin reactions and IgE antibody titers etc . , and the bronchial reactivity to inhaled acetylcholine were examined on the following three groups : ( 1 ) 20 young adults with a history of childhood asthma who have been symptom - free for more than 4 yr ; ( 2 ) 20 current asthmatics , and ( 3 ) 20 healthy young adults .

A: IgE antibody
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Q:  Since RIP140 generally down - regulates receptor activity in mammalian cells and specifically down - regulates coactivation mediated by SRC - 1 , we propose a model in which RIP140 indirectly regulates nuclear receptor AF - 2 activity by competition for coactivators such as SRC - 1 .

A: SRC - 1
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Q:  The more severe the CRF , the more likely that total HDL and HDL2 cholesterol will be low .

A:
HDL2 cholesterol
****