8598
These results indicate that TGF - betaf potentiates the c - fos SRE activated by PKC through the SRF binding site .
 TGF - betaf, c - fos, PKC, SRF binding site
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 TGF - betaf, c - fos, PKC, SRF binding site