PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1323562-8 1992 Gelsolin bound to ATP with Kd = 2.4 x 10(-6) M in a solution containing 2 mM MgCl2, whereas micromolar free Ca2+ concentrations inhibited ATP binding. Magnesium Chloride 77-82 gelsolin Homo sapiens 0-8