PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34787160-11 2021 The guanidinium groups of the drugs have powerful interactions with adjacent residues due to the formation of more hydrogen bonds, suggesting that this may be the critical site for drug design against TMPRSS2. Guanidine 4-15 transmembrane serine protease 2 Homo sapiens 201-208