6174
Previous studies indicated that the 20S proteasome is a catalytic core of the 26S proteolytic complex that possesses a latent multicatalytic proteinase activity and catalyzes an ATP - dependent , selective breakdown of proteins ligated to ubiquitin .
 GENE: 20S proteasome; GENE: 26S proteolytic complex; GENE: ubiquitin
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: 20S proteasome, 26S proteolytic complex, ubiquitin 
Answer:
 GENE: 20S proteasome; GENE: 26S proteolytic complex; GENE: ubiquitin