Toolkit/BROAD

BROAD

Computational Method·Research·Since 2018

Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

BROAD is a computational protein design method that combines Rosetta-based structure modeling, machine learning, and integer linear programming to improve design search beyond Rosetta sampling alone. It was demonstrated in antibody design to increase the predicted HIV neutralization breadth of VRC23 across a panel of 180 divergent viral strains.

Usefulness & Problems

Why this is useful

BROAD is useful for protein design problems in which conventional Rosetta multistate design is limited by sampling and optimization across many target states. In the reported study, it increased predicted antibody breadth and reached 100% predicted binding across 180 HIV strains, indicating utility for broad-specificity design tasks.

Problem solved

BROAD was developed to overcome limitations in Rosetta sampling methods during multistate protein design. The demonstrated application addressed the challenge of increasing predicted HIV antibody neutralization breadth against diverse viral strains.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete computational method used to design, rank, or analyze an engineered system.

Target processes

recombination

Implementation Constraints

BROAD integrates structure-based modeling in the Rosetta software suite with machine learning and integer linear programming. The reported implementation was applied to multistate antibody design for VRC23 against a panel of divergent HIV strains, but the provided evidence does not specify model features, solver details, or required input formats.

The supplied evidence is limited to a single 2018 study and a computational antibody-design demonstration. The available evidence does not report experimental validation, implementation details beyond the algorithmic components, or performance in non-antibody protein systems.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 2benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 3benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 4benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 5benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 6benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 7benchmark performancesupports2018Source 1needs review

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.
predicted binding coverage 100 %viral strain panel size 180 strains
Claim 8comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 9comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 10comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 11comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 12comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 13comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 14comparative performancesupports2018Source 1needs review

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.
Claim 15generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 16generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 17generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 18generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 19generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 20generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 21generalizabilitysupports2018Source 1needs review

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.
Claim 22method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 23method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 24method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 25method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 26method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 27method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 28method descriptionsupports2018Source 1needs review

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.
Claim 29predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 30predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 31predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 32predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 33predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 34predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 35predicted not experimentally testedsupports2018Source 1needs review

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.
Claim 36sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 37sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 38sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 39sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 40sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 41sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.
Claim 42sequence feature recoverysupports2018Source 1needs review

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.

Approval Evidence

1 source6 linked approval claimsfirst-pass slug broad
We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods. We demonstrate the effectiveness of this method, which we call BROAD

Source:

benchmark performancesupports

BROAD increased predicted breadth of antibody VRC23 against a panel of 180 divergent HIV viral strains and achieved 100% predicted binding against that panel.

We use this novel method to increase predicted breadth of naturally-occurring antibody VRC23 against a panel of 180 divergent HIV viral strains and achieve 100% predicted binding against the panel.

Source:

comparative performancesupports

BROAD significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison.

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.

Source:

generalizabilitysupports

The authors state that BROAD is general and can be extended easily to other protein systems.

Finally, our approach is general and can be extended easily to other protein systems.

Source:

method descriptionsupports

BROAD is a computational approach that combines Rosetta-based structural modeling with machine learning and integer linear programming to overcome limitations in Rosetta sampling methods.

We propose a new computational approach that combines traditional structure-based modeling using the Rosetta software suite with machine learning and integer linear programming to overcome limitations in the Rosetta sampling methods.

Source:

predicted not experimentally testedsupports

The modeled antibody variants were not tested in vitro, and the reported breadth increase is a prediction relative to wild-type antibody.

Although our modeled antibodies were not tested in vitro, we predict that these variants would have greatly increased breadth compared to the wild-type antibody.

Source:

sequence feature recoverysupports

Sequences recovered by BROAD recovered known binding motifs of broadly neutralizing anti-HIV antibodies.

We further demonstrate that sequences recovered by this method recover known binding motifs of broadly neutralizing anti-HIV antibodies.

Source:

Comparisons

Source-backed strengths

The method significantly outperformed state-of-the-art multistate design in Rosetta in the reported comparison. In the benchmark application, BROAD increased the predicted breadth of antibody VRC23 and achieved 100% predicted binding against a 180-strain HIV panel.

Source:

In addition, we compare the performance of this method to state-of-the-art multistate design in Rosetta and show that we can outperform the existing method significantly.

Ranked Citations

  1. 1.
    StructuralSource 1PLoS Computational Biology2018Claim 1Claim 2Claim 3

    Extracted from this source document.