27040
All modeled MSPs have a conserved folding pattern , apart from structural divergences in the C - domain and discrete differences of charge and topology in the catalytic cleft , and present the same geometry of the canonical HEXXH zinc - binding motif .
 Chemical: zinc
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: zinc 
Answer:
 Chemical: zinc