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:
 The unagglutinated thymocytes ( peanut negative ) contained about 2 times more receptor sites per cell than agglutinated ( peanut positive ) ones ( 7650 + / - 1550 S . D . verus 3195 + / - 896 S . D . ) .
answer:
receptor sites


question:
 Retinoic acid ( RA ) inhibited 3H - thymidine incorporation in response to GM - CSF .
answer:
GM - CSF


question:
 In contrast , extracts from HeLa cells transcribed the Ig promoter poorly .
answer:

Ig promoter