Fig. 4
From: Antibody engineering improves neutralization activity against K417 spike mutant SARS-CoV-2 variants
R3P1-E4 suppresses SARS-CoV-2 variants. A Sketch map of SARS-CoV-2 pseudoviruses construction. B Antibody competition assay were performed to test the abilities of R3P1-E4, CB6, REGN10933 and S309 mAbs to competitively bind with RBD variant proteins against hACE2. C The abilities of R3P1-E4, CB6, REGN10933 and S309 mAbs to neutralize SARS-CoV-2 pseudovirus were examined by pseudovirus neutralization assay