PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26004220-4 2015 For instance, Mg(2+) and Zn(2+) favor the substitution at the Ca-5 site of beta-TCP while Sr(2+) and Ba(2+) tend to occupy Ca-3 and Ca-4 in the beta-type crystal structure. Zinc 25-27 carbonic anhydrase 5A Homo sapiens 62-66