PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1714877-11 1991 After perchloric acid treatment of HMFGM, BA6 activity was lost while the CA4 activity was found in the soluble fraction. Perchloric Acid 6-21 carbonic anhydrase 4 Homo sapiens 74-77