EMD-43660
SARS-CoV-2 S RBD (C.37 Lambda variant) plus S309 Fab, local refinement
EMD-43660
Single-particle3.1 Å

Map released: 27/03/2024
Last modified: 08/01/2025
Sample Organism:
Severe acute respiratory syndrome coronavirus 2,
Homo sapiens
Sample: SARS-CoV-2 S C.37 (Lambda variant) plus S309, S2L20, and S2X303 Fabs
Fitted models: 8vyg (Avg. Q-score: 0.395)
Deposition Authors: McCallum M
,
Veesler D
,
Seattle Structural Genomics Center for Infectious Disease (SSGCID)
Sample: SARS-CoV-2 S C.37 (Lambda variant) plus S309, S2L20, and S2X303 Fabs
Fitted models: 8vyg (Avg. Q-score: 0.395)
Deposition Authors: McCallum M


Quantifying how single dose Ad26.COV2.S vaccine efficacy depends on Spike sequence features.
Magaret CA
,
Li L
,
deCamp AC
,
Rolland M
,
Juraska M
,
Williamson BD
,
Ludwig J
,
Molitor C,
Benkeser D
,
Luedtke A,
Simpkins B
,
Heng F
,
Sun Y
,
Carpp LN
,
Bai H
,
Dearlove BL
,
Giorgi EE,
Jongeneelen M,
Brandenburg B,
McCallum M
,
Bowen JE,
Veesler D
,
Sadoff J
,
Gray GE,
Roels S,
Vandebosch A,
Stieh DJ
,
Le Gars M,
Vingerhoets J
,
Grinsztejn B,
Goepfert PA
,
de Sousa LP
,
Silva MST,
Casapia M
,
Losso MH
,
Little SJ
,
Gaur A,
Bekker LG
,
Garrett N
,
Truyers C,
Van Dromme I,
Swann E,
Marovich MA,
Follmann D
,
Neuzil KM
,
Corey L
,
Greninger AL
,
Roychoudhury P
,
Hyrien O,
Gilbert PB
(2024) Nat Commun , 15 , 2175 - 2175
































(2024) Nat Commun , 15 , 2175 - 2175
Abstract:
In the ENSEMBLE randomized, placebo-controlled phase 3 trial (NCT04505722), estimated single-dose Ad26.COV2.S vaccine efficacy (VE) was 56% against moderate to severe-critical COVID-19. SARS-CoV-2 Spike sequences were determined from 484 vaccine and 1,067 placebo recipients who acquired COVID-19. In this set of prespecified analyses, we show that in Latin America, VE was significantly lower against Lambda vs. Reference and against Lambda vs. non-Lambda [family-wise error rate (FWER) p < 0.05]. VE differed by residue match vs. mismatch to the vaccine-insert at 16 amino acid positions (4 FWER p < 0.05; 12 q-value ≤ 0.20); significantly decreased with physicochemical-weighted Hamming distance to the vaccine-strain sequence for Spike, receptor-binding domain, N-terminal domain, and S1 (FWER p < 0.001); differed (FWER ≤ 0.05) by distance to the vaccine strain measured by 9 antibody-epitope escape scores and 4 NTD neutralization-impacting features; and decreased (p = 0.011) with neutralization resistance level to vaccinee sera. VE against severe-critical COVID-19 was stable across most sequence features but lower against the most distant viruses.
In the ENSEMBLE randomized, placebo-controlled phase 3 trial (NCT04505722), estimated single-dose Ad26.COV2.S vaccine efficacy (VE) was 56% against moderate to severe-critical COVID-19. SARS-CoV-2 Spike sequences were determined from 484 vaccine and 1,067 placebo recipients who acquired COVID-19. In this set of prespecified analyses, we show that in Latin America, VE was significantly lower against Lambda vs. Reference and against Lambda vs. non-Lambda [family-wise error rate (FWER) p < 0.05]. VE differed by residue match vs. mismatch to the vaccine-insert at 16 amino acid positions (4 FWER p < 0.05; 12 q-value ≤ 0.20); significantly decreased with physicochemical-weighted Hamming distance to the vaccine-strain sequence for Spike, receptor-binding domain, N-terminal domain, and S1 (FWER p < 0.001); differed (FWER ≤ 0.05) by distance to the vaccine strain measured by 9 antibody-epitope escape scores and 4 NTD neutralization-impacting features; and decreased (p = 0.011) with neutralization resistance level to vaccinee sera. VE against severe-critical COVID-19 was stable across most sequence features but lower against the most distant viruses.