PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16787097-2 2006 Its binding to hCA II is similar to that of other benzesulfonamides, with the ionized sulfonamide coordinated to the Zn2+ ion within the enzyme active site, and also participating in a network of hydrogen bonds with residues Thr199 and Glu106. Sulfonamides 55-66 carbonic anhydrase 2 Homo sapiens 15-21