PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 35201897-11 2022 These genetic defects were concentrated in the env region compared to gag and pol, likely a reflection of viral immune escape in env during untreated HIV-1 infection. Glycosaminoglycans 70-73 endogenous retrovirus group K member 20 Homo sapiens 129-132