25137
The interaction between Arg186 of PPM1A and Glu203 and pTyr204 of phospho - ERK was identified as a hot - spot for phospho - ERK - PPM1A interaction .
 Arg186, Glu203, phospho, phospho
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Arg186, Glu203, phospho, phospho