PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18287884-2 2008 NIP-151 potently inhibited acetylcholine-activated K current (IKACh) with an IC50, with 1.6 nM in HEK293 cells expressing the GIRK1/4 channel, but it had little effect on IKr (IC50 = 57.6 microM). Acetylcholine 27-40 potassium inwardly rectifying channel subfamily J member 3 Homo sapiens 126-131