Of five positive clones isolated from 0 . 75 x 10 ( 6 ) yeast colonies , four were members of the CREB/activating transcription factor ( ATF ) family : CREB , two isoforms of the cyclic AMP-responsive element modulator ( CREM ) , and ATF-1 .
of five positive clones isolated from 0 . 75 x 10 ( 6 ) yeast colonies , four were members of the creb/activating transcription factor ( atf ) family : creb , two isoforms of the cyclic amp-responsive element modulator ( crem ) , and atf-1 .
O O O O O O O O O O O O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O B-protein_molecule O