9705
The Fyn NH2 terminus was necessary but not sufficient for interaction with zeta and both Fyn kinase and SH2 domains were required , directing phosphorylation of zeta ITAM tyrosines and binding to zeta ITAM phosphotyrosines .
 Fyn NH2 terminus, Fyn kinase, SH2 domains, zeta ITAM, zeta ITAM
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Fyn NH2 terminus, Fyn kinase, SH2 domains, zeta ITAM, zeta ITAM