PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3103674-3 1986 Using membrane-inlet mass spectrometry, we have measured 18O exchange between CO2 and H2O catalyzed by native zinc-containing and cobalt(II)-substituted carbonic anhydrase III from bovine skeletal muscle near pH 7.5. Cobalt(2+) 130-140 carbonic anhydrase 3 Bos taurus 153-175