PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17137604-4 2007 The muscarinic receptors involved in the regulation of mucin release were identified as M1 and M4 by the use of the selective acetylcholine receptors (mAChR) antagonists, pirenzepine, AF-DX 116, 4-DAMP and tropicamide. Pirenzepine 171-182 solute carrier family 13 member 2 Rattus norvegicus 55-60