PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1963807-13 1990 The alkaloid veratridine, which activates Na+ channels and also causes influx of Ca2+ induced a transient rise of cyclic GMP levels in the neuronal cell line. Alkaloids 4-12 5'-nucleotidase, cytosolic II Mus musculus 121-124