6144
1-(5-Isoquinolinylsulphonyl)-2-methylpiperazine dihydrochloride ( H7 ), an inhibitor of a putative STAT3 serine kinase , and 4-(4-fluorophenyl)-2-(4-methylsulphinylphenyl)-5-(4-pyridyl) 1H-imidazole ( SB 203580 ), an inhibitor of p38 mitogen-activated protein (MAP) kinase , did not dampen any of these serine phosphorylation responses .
 STAT3 serine kinase, STAT3, p38 mitogen-activated protein (MAP) kinase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 STAT3 serine kinase, STAT3, p38 mitogen-activated protein (MAP) kinase