PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1648965-5	1991	Since titrations of diferric transferrin produce no difference UV spectrum, it is proposed that the primary binding site for phosphonic acids includes the protein groups that bind the synergistic bicarbonate anion that is required for formation of a stable ferric transferrin complex.	Phosphorous Acids	125-141	transferrin	Homo sapiens	264-275