4026
Alternating proline / alanine sequence of beta B1 subunit originates from a repetitive DNA sequence .
 GENE: beta B1 subunit
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: beta B1 subunit 
Answer:
 GENE: beta B1 subunit