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:
 Biochemical characterization of MIP - 1 alpha nuclear protein .
answer:
nuclear protein


question:
 IFN - gamma - positive cells were present in the upper dermis of the lesions .
answer:
IFN - gamma


question:
 Notably , CD28 ligation activated p38 MAPK and CaMKIV , the kinases stimulated by CD3 engagement , suggesting that CD28 acts by increasing the activation extent of p38 MAPK and CaMKIV .
answer:

p38 MAPK