SARS-CoV-2 B.1.1.7 and B.1.351 spike variants bind human ACE2 with increased affinity - The Lancet Infectious Diseases
▻https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00262-0/abstract
The B.1.1.7 RBD bound ACE2 with 1·98-times greater affinity than the SCoV2 RBD [...] The B.1.351 RBD bound ACE2 with 4·62-times greater affinity than the SCoV2 RBD.