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Our results demonstrate that transcriptional regulation of the Fc gamma RIC gene by IFN-gamma involves the binding of STAT1 alpha to a 17-bp GAS homology in the proximal promoter .
 protein: IFN-gamma; DNA: Fc gamma RIC gene; DNA: 17-bp GAS homology; DNA: proximal promoter; protein: STAT1 alpha
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: IFN-gamma, Fc gamma RIC gene, 17-bp GAS homology, proximal promoter, STAT1 alpha 
Answer:
 protein: IFN-gamma; DNA: Fc gamma RIC gene; DNA: 17-bp GAS homology; DNA: proximal promoter; protein: STAT1 alpha