PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14005-4 1977 In a buffer containing 155 mM NH4Cl and 10 mM MgCl2, the calcium affinity of these sites is reduced to a KCa of 3.0 X 10(6) M-1, indicating competition between Ca2+ and Mg2+. Magnesium Chloride 46-51 mucin 7, secreted Homo sapiens 169-172 14005-6 1977 In a buffer containing 155 mM NH4Cl and 10 mM MgCl2, the calcium affinity of these sites is reduced to a KCa of 3.0 X 10(6) M-1, indicating competition between Ca2+ and Mg2+. Magnesium Chloride 46-51 mucin 7, secreted Homo sapiens 169-172