6VOS image
Entry Detail
PDB ID:
6VOS
Keywords:
Title:
Crystal structure of macaque anti-HIV-1 antibody RM20J
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2020-01-31
Release Date:
2020-09-16
Method Details:
Experimental Method:
Resolution:
2.30 Å
R-Value Free:
0.21
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
P 43 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:RM20J Fab heavy chain
Chain IDs:A (auth: H)
Chain Length:222
Number of Molecules:1
Biological Source:Macaca mulatta
Polymer Type:polypeptide(L)
Description:RM20J Fab light chain
Chain IDs:B (auth: L)
Chain Length:214
Number of Molecules:1
Biological Source:Macaca mulatta
Primary Citation

Abstact

The induction of broad and potent immunity by vaccines is the key focus of research efforts aimed at protecting against HIV-1 infection. Soluble native-like HIV-1 envelope glycoproteins have shown promise as vaccine candidates as they can induce potent autologous neutralizing responses in rabbits and non-human primates. In this study, monoclonal antibodies were isolated and characterized from rhesus macaques immunized with the BG505 SOSIP.664 trimer to better understand vaccine-induced antibody responses. Our studies reveal a diverse landscape of antibodies recognizing immunodominant strain-specific epitopes and non-neutralizing neo-epitopes. Additionally, we isolated a subset of mAbs against an epitope cluster at the gp120-gp41 interface that recognize the highly conserved fusion peptide and the glycan at position 88 and have characteristics akin to several human-derived broadly neutralizing antibodies.

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