2022-11-23 REL RCSB RCSB RCSB 2020-12-22 2021-08-04 2021-08-04 2022-11-23 Bill & Melinda Gates Foundation OPP1115782 United States Antanasijevic A Sewall LM Ward AB Antanasijevic A Sewall LM Cottrell CA Carnathan DG Jimenez LE Ngo JT Silverman JB Groschel B Georgeson E Bhiman J Bastidas R LaBranche C Allen JD Copps J Perrett HR Rantalainen K Cannac F Yang YR de la Pena AT Rocha RF Berndsen ZT Baker D King NP Sanders RW Moore JP Crotty S Crispin M Montefiori DC Burton DR Schief WR Silvestri G Ward AB Nat Commun UK 12 4817 4817 2021 34376662 doi:10.1038/s41467-021-25087-4 2041-1723 EMD-23175 other EM volume EMD-23176 other EM volume EMD-23177 other EM volume EMD-23178 other EM volume EMD-23179 other EM volume EMD-23180 other EM volume EMD-23181 associated EM volume BG505 SOSIP.v5.2(7S) in complex with the polyclonal Fab sample from Group 3 of immunized rhesus macaques (Wk26 time point; Animal ID: Rh.33172) BG505 SOSIP.v5.2(7S) in complex with the polyclonal Fab sample from Group 3 of immunized rhesus macaques (Wk26 time point; Animal ID: Rh.33172) 0 1

Polyclonal complexes were generated by incubation of isolated polyclonal Fabs with recombinantly expressed BG505 SOSIP and subsequent SEC purification.

Human immunodeficiency virus 1 Homo sapiens HEK293F pPPI4 BG505 SOSIP.v5.2(7S) N241/N289 Human immunodeficiency virus 1 Homo sapiens LEVO MKRGLCCVLLLCGAVFVSPSQEIHARFRRGARAENLWVTVYYGVPVWKDAETTLFCASDAKAYETKKHNVWATHCCVPTDPNPQEIHLENVTEEFNMWKNNMVEQMHTDIISLWDQSLKPCVKLTPLCVTLQCTNVTNNITDDMRGELKNCSFNMTTELRDKKQKVYSLFYRLDVVQINENQGNRSNNSNKEYRLINCNTSAITQACPKVSFEPIPIHYCAPAGFAILKCKDKKFNGTGPCTNVSTVQCTHGIKPVVSTQLLLNGSLAEEEVIIRSENITNNAKNILVQLNESVQINCTRPNNNTVKSIRIGPGQWFYYTGDIIGDIRQAHCNVSKATWNETLGKVVKQLRKHFGNNTIIRFANSSGGDLEVTTHSFNCGGEFFYCNTSGLFNSTWISNTSVQGSNSTGSNDSITLPCRIKQIINMWQRIGQAMYAPPIQGVIRCVSNITGLILTRDGGSTNSTTETFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTRCKRRVVGRRRRRRAVGIGAVSLGFLGAAGSTMGAASMTLTVQARNLLSGIVQQQSNLLRAPECQQHLLKDTHWGIKQLQARVLAVEHYLRDQQLLGIWGCSGKLICCTNVPWNSSWSNRNLSEIWDNMTWLQWDKEISNYTQIIYGLLEESQNQQEKNEQDLLELD singleParticle particle 0.05 7.4 25.0 Tris-HCl 150.0 NaCl sodium chloride

TBS buffer, pH 7.4

NEGATIVE Uranyl Formate

Sample diluted to 0.05 mg/mL. 3 uL was applied onto the grid, blotted off, and then stained with 2% uranyl formate for 60 seconds.

Homemade COPPER 400 CARBON CONTINUOUS GLOW DISCHARGE

Polyclonal complexes were generated by incubation of isolated polyclonal Fabs with recombinantly expressed BG505 SOSIP and subsequent SEC purification.

FEI TECNAI SPIRIT FLOOD BEAM BRIGHT FIELD LAB6 120 100.0 2.7 1.5 1.5 52000.0 SIDE ENTRY, EUCENTRIC TVIPS TEMCAM-F416 (4k x 4k) 25.0 1

Appion manual picker

Negative stain EM map of the free BG505 SOSIP trimer

C1 BACK PROJECTION 19.7 FSC 0.143 CUT-OFF RELION 3.0 67786 MAXIMUM LIKELIHOOD RELION 3.0 MAXIMUM LIKELIHOOD RELION 3.0 RELION 3.0 RIGID BODY FIT REAL