6XWI image
Entry Detail
PDB ID:
6XWI
Keywords:
Title:
Solution NMR structure of the S0_2.126 designed protein
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2020-01-23
Release Date:
2020-04-15
Method Details:
Experimental Method:
Conformers Calculated:
80
Conformers Submitted:
20
Selection Criteria:
target function
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:S0_2.126
Chain IDs:A
Chain Length:71
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
Primary Citation

Abstact

De novo protein design has been successful in expanding the natural protein repertoire. However, most de novo proteins lack biological function, presenting a major methodological challenge. In vaccinology, the induction of precise antibody responses remains a cornerstone for next-generation vaccines. Here, we present a protein design algorithm called TopoBuilder, with which we engineered epitope-focused immunogens displaying complex structural motifs. In both mice and nonhuman primates, cocktails of three de novo-designed immunogens induced robust neutralizing responses against the respiratory syncytial virus. Furthermore, the immunogens refocused preexisting antibody responses toward defined neutralization epitopes. Overall, our design approach opens the possibility of targeting specific epitopes for the development of vaccines and therapeutic antibodies and, more generally, will be applicable to the design of de novo proteins displaying complex functional motifs.

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Primary Citation of related structures