PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 35458513-3 2022 Accordingly, point mutations that result in an increase in electropositively charged residues, e.g., arginine and lysine, especially in the RBD of spike proteins in the SARS-CoV-2 variants, could contribute to their spreading capacity by favoring their recognition by the electronegatively charged ACE2 receptors. Arginine 101-109 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 147-152