6935
We previously described the purification of an 83 - kDa phosphatidic acid phosphatase ( PAP ) from the porcine thymus membranes ( Kanoh , H . , Imai , S . - i . , Yamada , K . and Sakane , F . ( 1992 ) J .
 83 - kDa phosphatidic acid phosphatase, PAP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 83 - kDa phosphatidic acid phosphatase, PAP