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.

 The effect of the negative regulatory element is negated by the viral IE2 protein ( L .
viral IE2 protein

 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 .
IgE antibody

 Blood samples for determination of fibrinolytic activity and factor VIII in plasma were obtained before and immediately after the end of compression and application of a stocking , respectively .

factor VIII