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.
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Question:  Such effect was accompanied by an increased expression of MCP - 1 mRNA ( 176 % as compared to the control ) in endothelial cells which resulted in enhanced monocyte chemotaxis .

Answer: MCP - 1


Question:  We conclude that peritoneal fluid of endometriosis patients contains activators of PPAR - alpha that stimulate macrophage chemotaxis .

Answer: PPAR - alpha


Question:  We describe a novel and potentially important mechanism of nitric oxide signaling - through direct activation of guanine nucleotide - binding proteins ( G proteins ) .

Answer:
G proteins