PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
6289664-2	1982	Particulate fractions from human chorion-decidua sedimenting between 1,500 and 45,000 x g display optimal binding of 215I-labeled ovine prolactin when incubated at a membrane protein concentration of 200 micrograms per assay tube for 2 hours at 22 degrees C. Specific binding was increased by pretreatment of the membrane particles with 5M magnesium chloride to remove endogenous prolactin.	Magnesium Chloride	340-358	prolactin	Homo sapiens	136-145