Predictive Design of Biologics

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Rapid Computational Design & Experimental Validation of Antibodies

LLNL biologists, computer scientists and engineers are developing a machine-learning enabled computational/experimental framework that enables unprecedented acceleration of the drug development process.

Our platform integrates world-class high-performance computing and simulation, machine learning, structural bioinformatics, and multi-objective optimization to perform in silico antibody and antigen design and optimization. These designs are then experimentally validated at LLNL and at our partner facilities, and results are either pursed as candidate medical countermeasures (MCMs) or provided as critical feedback for computational redesign.

 
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We are partnering with academia, and industry to further develop and demonstrate this capability. When fully implemented our system will enable both a proactive and rapid reactive approach for designing MCMs

If you are interested in joining our team or have questions, please contact us at CPDB [at] llnl.gov (CPDB[at]llnl[dot]gov)

Research Highlights

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Computationally restoring the potency of a clinical antibody against SARS-CoV-2 Omicron subvariants

With the emergence of the SARS-CoV-2 Omicron variant in late 2021, many clinically used antibody drug products lost potency, including Evusheld and its constituent, cilgavimab. Rapidly modifying such high-value antibodies with a known clinical profile to restore efficacy against emerging variants is a compelling mitigation strategy. We sought to redesign COV2-2130 to rescue in vivo efficacy against Omicron BA.1 and BA.1.1 strains while maintaining efficacy against the contemporaneously dominant Delta variant. Here we show that our computationally redesigned antibody, 2130-1-0114-112, achieves this objective, simultaneously increases neutralization potency against Delta and many variants of concern that subsequently emerged, and provides protection in vivo against the strains tested.

A depiction of the mutation position of  AbBERT: Learning Antibody Humanness Via Masked Language Modeling

AbBERT: Learning Antibody Humanness Via Masked Language Modeling

One component of our computational pipeline is a model to understand the degree of similarity of novel, engineered antibody sequences to typical human antibody sequences. Accurate understanding of the degree of humanness can help reduce or manage the risk of failure modes such as immunogenicity or poor manufacturability. AbBERT was developed to fill this need as a transformer-based language model derived from ProtBert, which was trained on up to 20 million unpaired sequences from the Observed Antibody Space database.

We validated AbBERT using a novel “multi-mask'' scoring procedure to demonstrate high accuracy in predicting antibody complementary determining regions—including the challenging hypervariable H3 region. We then demonstrated several uses of AbBERT on downstream antibody design and prediction tasks. AbBERT enhances in silico antibody optimization via deep reinforcement learning by utilizing its learned embeddings as additional observations during optimization.

Other Research Manuscripts

Join Our Team

Workers performing a variety of jobs

 

We have career opportunities to develop a next generation computational antibody and antigen design platform driven by simulation and machine learning models trained on large experimental datasets.

 

Lawrence Livermore National Laboratory has been ranked among the top 10 employers in the San Francisco Bay Area by Forbes Magazine, won multiple Glassdoor Best Places to Work awards, and is among the top 12 in government services nationwide. The Laboratory offers employees outstanding careers with a first-class benefits package in a beautiful location. See our Careers page for more information about our culture, the benefits and perks, our history, and job opportunities.

Our Leadership

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Dan Faissol, PhD
Principal Investigator

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Shankar Sundaram, PhD
Program Executive

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Tom Bates, PhD
Program Deputy

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John Hernandez
Business Project Manager

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Kate Arrildt, PhD
Virology, Vaccinology

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Thomas Bunt
Rapid Response Laboratory Lead

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Barry Chen, PhD
Language Modeling Lead

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Simone Conti, PhD
Molecular Dynamics Simulations

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Jie Deng
Software and Data Architect

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Tom Desautels, PhD
Multi-fidelity Simulation and Machine Learning for Efficacy Prediction

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John Goforth
Software Development Lead

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Mikel Landajuela, PhD
Optimization Lead

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Ed Lau, PhD
Molecular Dynamics Simulation

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Ed Saada, PhD
Pathogen Interactions and Medical Countermeasures

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Ana Paula Sales, PhD
Developability Prediction Lead

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Brent Segelke, PhD
Structural Biologist, Protein Biochemist

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Adam Zemla, PhD
Protein Structure Bioinformatics

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Fangqiang Zhu, PhD
Molecular Dynamics Simulation, Structural Antibody Modeling

The Team

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Aram Avila-Herrera
Bioinformatics Software Developer

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Drew Bennett, PhD
Molecular Dynamics Simulation, Multi-scale Modeling

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Jose Cadena Pico, PhD
Machine Learning

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Ippolito Imani Caradonna
Automation Expert

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Rudrasis Chakraborty
Researcher

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Matt Coleman, PhD
Vaccinologist, Biochemical Engineer

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Zachary Cosenza
Bayesian Modeling, Multi-task Learning

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Aneesha Devulapally
ChemBio Data Scientist

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Jeff Drocco, PhD
Bioinformatics

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Andre Goncalves, PhD
Machine Learning, Multi-task Learning, Multi-objective Optimization

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Emilia Grzesiak
Biostatics and Data Science, Software Development

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Rebecca Haluska
Software Development and Database Engineering

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Conor Hayes, PhD
Reinforcement Learning, Machine Learning

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Matthew Jemielita
Assay Dev Lead

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Piyush Karande, PhD
Deep Learning

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Tek Hyung Lee, PhD
Synthetic and Systems Biologist and Microbial Engineer

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Leno De Silva, PhD
Deep Reinforcement Learning

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Tavish McDonald
Machine Learning, Language Modeling

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Yamen Mubarka
Deep Learning

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Nate Mundhenk, PhD
Deep learning, Convolutional Neural Networks

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Rami Musharrafieh
Vaccines Lead

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Christine Ocampo
Operation Administrator

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Kim Phan
Administrative Specialist

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Hiranmayi Ranganathan, PhD
Deep Active Learning, Machine Learning

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Tiffany Reck
Administrative Specialist

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Dante Ricci, PhD
Molecular Genetics, Systems Biology

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Natalie Rowland
Administrative Specialist

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Bonnee Rubinfeld
Cellular, Molecular, Micro-biologist/Biochemist

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Mary Silva
Bayesian Statistics and Data Science

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Cheryl Strout
Biochemical and Analytical Scientist

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Gareth Trubl, PhD
Viral and Microbial Ecologist

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Camilo Valdes, PhD
Bioinformatics

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Denis Vashchenko
Deep Learning Language Modeling, Software Development

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Yaqing Wang, PhD
Structural Biologist, Molecular Biophysicist

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Dina Weilhammer, PhD
Immunologist, Virologist

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Tracy Weisenberger
Cellular, Molecular, and Viral Biologist

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Boya Zhang, PhD
Machine learning, surrogate-based modeling

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Interested in joining the cutting edge of computational design and bioengineering?

CPDB [at] llnl.gov (Contact us )

Predictive Design of Biologics is a collaborative effort spearheaded by two Lawrence Livermore National Laboratory organizations: