5831
In these experiments we begin to study the potential functions of the alpha 7 cytoplasmic domain by analyzing homologies between the rat and human sequences , by immunologic studies using an anti - cytoplasmic domain antiserum , and by identifying two alternate forms .
 GENE: alpha 7 cytoplasmic domain
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: alpha 7 cytoplasmic domain 
Answer:
 GENE: alpha 7 cytoplasmic domain