2021-08-04 REL RCSB RCSB RCSB 2021-06-07 2021-08-04 2021-08-04 2021-08-04 Bajic G Windsor IW Tong P Gautam A Wesemann DR Harrison SC Tong P Gautam A Windsor I Travers M Chen Y Garcia N Whiteman NB McKay LGA Lelis FJN Habibi S Cai Y Rennick LJ Duprex WP McCarthy KR Lavine CL Zuo T Lin J Zuiani A Feldman J MacDonald EA Hauser BM Griffths A Seaman MS Schmidt AG Chen B Neuberg D Bajic G Harrison SC Wesemann DR Biorxiv US 2021 33758863 doi:10.1101/2021.03.10.434840 Tong P Gautam AK Windsor IW Bajic G Harrison SC Wesemann DR Cell(Cambridge,Mass.) US 2021 doi:10.1016/j.cell.2021.07.025 0092-8674 0998 CELLB5 EMD-24198 associated EM volume SARS-CoV-2 spike (2P) in complex with C12A2 Fab SARS-CoV-2 spike (2P) in complex with C12A2 Fab 0 1 2 3

B cell receptor was sequenced from memory B cell of SARS-CoV-2 convalescent human patient and express as Fab. SARS-CoV2-2 surface protein (with 2P stabilizing mutations) was expressed as soluble ectodomain.

Severe acute respiratory syndrome coronavirus 2 Homo sapiens expi293F human embryonic kidney pVRC singleParticle particle 7.5 10.0 Tris 150.0 NaCl ETHANE 88 298 FEI VITROBOT MARK IV FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 -0.8 -2.2 105000.0 NITROGEN GATAN K3 BIOQUANTUM (6k x 4k) 2.0 54.01 1 CTFFIND 4.1 3.8 FSC 0.143 CUT-OFF RELION 3.1 42463 OTHER RELION 3.1 MAXIMUM LIKELIHOOD RELION 3.1 RELION 3.1