19478
Studies on the kinetics of the hSULT2A1 - catalyzed sulfation of dehydroepiandrosterone ( DHEA ) showed the effects of disulfide bond formation on the substrate inhibition characteristics of the enzyme .
 Chemical: dehydroepiandrosterone; Chemical: DHEA; Chemical: disulfide
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: dehydroepiandrosterone; Chemical: DHEA; Chemical: disulfide