PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6102999-4 1980 In the presence of 0.5 mM theophylline, the dibutyryl cyclic AMP-mediated decrease in glutamine synthetase activity was half-maximal at 50 micro M dibutyryl cyclic AMP. Theophylline 26-38 glutamate-ammonia ligase (glutamine synthetase) Mus musculus 86-106 26055-9 1978 Treatment of 3T3-L1 control cells and adipocytes with dibutyryl cyclic AMP (1 mM) plus theophylline (1 mM) decreases the glutamine synthetase specific activity and almost completely reverses the insulin- and hydrocortisone-mediated increases in enzyme activity. Theophylline 87-99 glutamate-ammonia ligase (glutamine synthetase) Mus musculus 121-141