4592
In addition , putative binding sites for SH3 and SH2 domains are present in the amino - terminal half of the molecule .
 GENE: SH3; GENE: SH2 domains
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: SH3; GENE: SH2 domains