PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20458450-2 2010 Previous studies suggest the cell surface protein disulfide isomerase (PDI) might interact with disulfide bond(s) of gp120 and thus facilitate HIV-1 entry. Disulfides 50-59 Envelope surface glycoprotein gp160, precursor Human immunodeficiency virus 1 117-122