PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
18172600-1	2008	In squid axons, intracellular Mg2+ reduces the activity of the Na+/Ca2+ exchanger by competing with Ca2+ i for its regulatory site.	ca2+ i	100-106	nascent polypeptide associated complex subunit alpha 2	Homo sapiens	63-70