8648
Among three isoforms , the beta isoform has the greatest Vmax value for the PtdIns ( 4 ) P kinase activity and the gamma isoform is most markedly stimulated by phosphatidic acid .
 PtdIns ( 4 ) P kinase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 PtdIns ( 4 ) P kinase