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Together with the up - regulation of the cAMP response element modulator protein ( CREM ) mRNA and protein levels demonstrated previously in CREB mutant mice , we suggest that the up - regulation of CREB beta may also contribute to compensation within the CREB / ATF family of transcription factors , when CREB delta and CREB alpha are absent .
 GENE: cAMP response element modulator protein; GENE: CREM; GENE: CREB mutant; GENE: CREB beta; GENE: CREB; GENE: ATF; GENE: CREB delta; GENE: CREB alpha
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: cAMP response element modulator protein; GENE: CREM; GENE: CREB mutant; GENE: CREB beta; GENE: CREB; GENE: ATF; GENE: CREB delta; GENE: CREB alpha