8189
In contrast , resensitization of a sequestration - impaired beta2AR mutant ( Y326A ) was reestablished following the overexpression of either GRK2 or beta - arrestin 1 .
 GENE: beta2AR; GENE: GRK2; GENE: beta - arrestin 1
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: beta2AR, GRK2, beta - arrestin 1 
Answer:
 GENE: beta2AR; GENE: GRK2; GENE: beta - arrestin 1