12748
RbgA , unlike many members of the Ras superfamily of GTPases , lacks a defined catalytic residue for carrying out guanosine triphosphate ( GTP ) hydrolysis .
 Chemical: guanosine triphosphate; Chemical: GTP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: guanosine triphosphate; Chemical: GTP