12068
And , most importantly , reconstitution of a consensus CRE , within the 21 - bp enhancers increases binding of CREB / ATF proteins but abrogates basal repression of LTR - directed transcription in vitro .
 GENE: CREB; GENE: ATF
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: CREB, ATF 
Answer:
 GENE: CREB; GENE: ATF