7389
In this review , we report all chemical classes of CK2 inhibitors available in literature , focusing our attention on conventional ATP - competitive and on non ATP - competitive inhibitors , which could represent a new frontier in CK2 inhibition and , consequently , a promising field of study in discovering new drug candidates .
 Chemical: ATP; Chemical: ATP
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: ATP; Chemical: ATP