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:
 In T cells these two signal pathways are critical for interleukin - 2 production .
answer:
interleukin - 2


question:
 Detailed comparison of the sequences of cp35 and human calpactin II shows that the only substantial sequence dissimilarity is a domain encoding amino acids between residues 20 and 40 which includes a tyrosine phosphorylation site in the human molecule , along with other residues of possible physiological significance .
answer:
human calpactin II


question:
 Nicotinic receptor antagonists mecamylamine ( 0 . 5 and 1 mg / kg ) and hexamethonium ( 5 and 10 mg / kg ) reduced the response induced by nicotine ( 0 . 25 mg / kg ) .
answer:

Nicotinic receptor