PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2300581-6	1990	The mouse Prm-2 gene is maximally transcribed at a MgCl2 concentration of 3-5 mM and over a KCl concentration range of 40-100 mM.	Magnesium Chloride	51-56	protamine 2	Mus musculus	10-15