4620
The transforming protein of Rous sarcoma virus , pp60v - src , and its normal cellular homolog , pp60c - src , differ not only in oncogenic potential but also in their subcellular localization and cytoskeletal binding ability . pp60v - src has been shown to stably associate with a detergent - insoluble cytoskeletal matrix , whereas pp60c - src does not .
 pp60v - src, pp60c - src, pp60v - src, pp60c - src
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 pp60v - src, pp60c - src, pp60v - src, pp60c - src