ISDA

Deposition Date 2025-01-10

Release Date 2025-05-28

Last Version Date 2025-05-28

Entry Detail

PDB ID:

9MSY

Keywords:

VIRAL PROTEIN/IMMUNE SYSTEM

Title:

G002-480-0546 Fab in complex with V703-0537_T278M_L14 SOSIP and BG18 Fab

Biological Source:

Source Organism:

Human immunodeficiency virus 1 (Taxon ID: 11676)
Homo sapiens (Taxon ID: 9606)

Host Organism:

Homo sapiens

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.40 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:V703-0537_T278M_L14 SOSIP
Chain IDs:A, F (auth: B), K (auth: C)
Chain Length:654
Number of Molecules:3
Biological Source:Human immunodeficiency virus 1

UniProt ID:A0A7R8V857 Pfam ID:PF00516, PF00517

Polymer Type:polypeptide(L)
Molecule:BG18 Fab heavy chain
Chain IDs:B (auth: G), G (auth: J), L (auth: O)
Chain Length:233
Number of Molecules:3
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Molecule:G002-480-0546 Fab heavy chain
Chain IDs:E (auth: H), J (auth: K), O (auth: P)
Chain Length:226
Number of Molecules:3
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Molecule:BG18 Fab light chain
Chain IDs:C (auth: I), H (auth: M), M (auth: Q)
Chain Length:214
Number of Molecules:3
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Molecule:G002-480-0546 Fab light chain
Chain IDs:D (auth: L), I (auth: N), N (auth: R)
Chain Length:211
Number of Molecules:3
Biological Source:Homo sapiens

Ligand Molecules

NAG

Primary Citation

Vaccination with mRNA-encoded nanoparticles drives early maturation of HIV bnAb precursors in humans.

Willis, J.R, Prabhakaran, M, Muthui, M, Naidoo, A, Sincomb, T, Wu, W, Cottrell, C.A, Landais, E, deCamp, A.C, Keshavarzi, N.R, Kalyuzhniy, O, Lee, J.H, Murungi, L.M, Ogonda, W.A, Yates, N.L, Corcoran, M.M, Phulera, S, Musando, J, Tsai, A, Lemire, G, Sein, Y, Muteti, M, Alamuri, P, Bohl, J.A, Holman, D, Himansu, S, Leav, B, Reuter, C, Lin, L.A, Ding, B, He, C, Straus, W.L, MacPhee, K.J, Regadas, I, Nyabundi, D.V, Chirchir, R, Anzala, A, Kimotho, J.N, Kibet, C, Greene, K, Gao, H, Beatman, E, Benson, K, Laddy, D, Brown, D.M, Bronson, R, Baptiste, J, Gajjala, S, Rikhtegaran-Tehrani, Z, Benner, A, Ramaswami, M, Lu, D, Alavi, N, Amirzehni, S, Kubitz, M, Tingle, R, Georgeson, E, Phelps, N, Adachi, Y, Liguori, A, Flynn, C, McKenney, K, Zhou, X, Owuor, D.C, Owuor, S, Kim, S.Y, Duff, M, Kim, J.Y, Gibson, G, Baboo, S, Diedrich, J, Schiffner, T, Shields, M, Matsoso, M, Santos, J, Syvertsen, K, Kennedy, A, Schroeter, M, Vekemans, J, Yates, J, Paulson, J.C, Hyrien, O, McDermott, A.B, Maenetje, P, Nyombayire, J, Karita, E, Ingabire, R, Edward, V, Muturi-Kioi, V, Maenza, J, Shapiro, A.E, McElrath, M.J, Edupuganti, S, Taylor, B.S, Diemert, D, Ozorowski, G, Koup, R.A, Montefiori, D, Ward, A.B, Hedestam, G.K, Tomaras, G, Hunt, D.J, Muema, D, Sok, D, Laufer, D.S, Andrews, S.F, Nduati, E.W, Schief, W.R.Show

Science ? eadr8382 eadr8382 (2025)

PMID: 40373112 DOI: 10.1126/science.adr8382

Abstact

A leading HIV vaccine strategy requires a priming immunogen to induce broadly neutralizing antibody (bnAb) precursors, followed by a series of heterologous boosters to elicit somatic hypermutation (SHM) and produce bnAbs. In two randomized, open-label phase 1 human clinical trials, IAVI-G002 in the United States and IAVI-G003 in Rwanda and South Africa, we evaluated the safety and immunogenicity of mRNA-encoded nanoparticles as priming immunogens (both trials) and first-boosting immunogens (IAVI-G002). The vaccines were generally safe and well tolerated, except 18% of IAVI-G002 participants experienced skin reactions. Priming induced bnAb precursors with substantial frequencies and SHM, and heterologous boosting elicited increased SHM, affinity, and neutralization activity toward bnAb development. The results establish clinical proof of concept that heterologous boosting can advance bnAb-precursor maturation and demonstrate bnAb priming in Africa where the HIV burden is highest.

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Primary Citation of related structures