PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16158611-2	2005	Ca2+ is a key second messenger that delivers signal from the cell surface, reactive oxygen intermediates and nitric oxide are recently recognized as important mediators of T cell activation.	reactive	75-83	carbonic anhydrase 2	Homo sapiens	0-3