instruction:
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.
question:
 Sequence analysis and electrophoretic mobility shift experiments suggest that GnSE response elements interact , in these two regions , with GATA - and LIM - related factors , respectively .
answer:
GnSE response elements


question:
 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 .
answer:
IgE antibody


question:
 This raises the possibility that recombination occurred between corresponding LTR and vif loci of the quasi - species present in the isolates described here .
answer:

vif loci