1086
Alignment of the amino acid sequences surrounding Tyr - 766 with corresponding regions of other FGFRs revealed conserved tyrosine residues in all known members of the FGFR family .
 FGFRs, FGFR family
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 FGFRs, FGFR family