DeepFold: AI-Powered Protein Structure Prediction

Mar 15, 2023·
michael-chen-postdoc
michael-chen-postdoc
Julie DUQUE
Julie DUQUE
sarah-johnson-phd
sarah-johnson-phd
· 3 min read
projects

Project Overview

The DeepFold project represents a breakthrough approach to protein structure prediction using state-of-the-art deep learning architectures. Building upon recent advances in attention mechanisms and geometric deep learning, we’re developing models that can predict protein structures with near-experimental accuracy.

Key Innovations

Advanced Architecture

  • Geometric Transformers: Novel attention mechanisms that respect protein geometry
  • Multi-Scale Learning: Hierarchical models capturing local and global structural patterns
  • Uncertainty Quantification: Confidence scores for each prediction

Training Strategy

  • Massive Datasets: Training on 500K+ known structures from PDB and AlphaFold DB
  • Data Augmentation: Physics-informed transformations preserving structural validity
  • Transfer Learning: Fine-tuning for specific protein families

Validation Approach

  • Experimental Validation: Collaboration with structural biology labs
  • Benchmark Performance: State-of-the-art results on CASP competition metrics
  • Blind Testing: Predictions on unpublished experimental structures

Current Results

Our latest model achieves:

  • 95.2% accuracy on CASP15 benchmark (vs 89.1% previous best)
  • Sub-second prediction for proteins up to 1000 amino acids
  • Reliable uncertainty estimates identifying prediction confidence

Impact & Applications

Drug Discovery

  • Accelerating virtual screening for COVID-19 therapeutics
  • Enabling structure-based drug design for cancer targets
  • Predicting drug-protein interactions for personalized medicine

Basic Science

  • Understanding protein evolution and design principles
  • Studying protein-protein interactions in disease
  • Designing novel enzymes for biotechnology

Team & Collaborations

Lead Researchers:

  • Prof. Jane Smith (PI) - Project direction and funding

Collaborators:

  • Stanford Structural Biology Lab
  • Genentech Computational Biology
  • European Bioinformatics Institute (EBI)

Funding & Timeline

Funding Sources:

  • NSF Division of Molecular and Cellular Biosciences: $850,000
  • AWS Cloud Credits: $100,000 compute resources

Project Timeline:

  • Phase 1 (2023): Architecture development and initial training
  • Phase 2 (2024): Large-scale training and validation
  • Phase 3 (2025-2026): Applications and technology transfer

Publications & Presentations

Published Work

  1. Chen, M., Smith, J., et al. “DeepFold: Geometric Deep Learning for Protein Structure Prediction.” Nature Methods (2024) - Under Review
  2. Johnson, S., Chen, M., et al. “Uncertainty Quantification in Protein Structure Prediction.” Bioinformatics (2023)

Conference Presentations

  • ICML 2024 - Workshop on AI for Science
  • NeurIPS 2023 - Machine Learning for Structural Biology
  • CASP15 - Critical Assessment of Structure Prediction

Software & Data

Open Source Release

  • GitHub Repository: Full model code and training scripts
  • Model Weights: Pre-trained models for community use
  • Web Interface: Easy-to-use prediction server
  • Documentation: Comprehensive tutorials and examples

Datasets

  • Training Set: Curated dataset of 500K+ structures
  • Benchmark Suite: Standardized evaluation protocols
  • Validation Results: Experimental comparison data

Future Directions

Immediate Goals (2024):

  • Scale to larger proteins (>2000 amino acids)
  • Improve speed for real-time applications
  • Integrate experimental constraints

Long-term Vision (2025-2026):

  • Protein design and engineering applications
  • Multi-protein complex prediction
  • Integration with drug discovery pipelines
  • Technology transfer to pharmaceutical industry

Get Involved

We’re actively seeking:

  • Graduate Students: PhD positions in computational biology
  • Postdocs: Experience in deep learning or structural biology
  • Collaborators: Experimental validation partners
  • Industry Partners: Drug discovery applications

Contact Prof. Smith for opportunities: jane.smith@example.edu

Julie DUQUE
Authors
Full Professor, Head of the CoActions Lab
Research broadly explores a range of questions pertaining to the cognitive neuroscience of human behavior. Conduct experiments to explore the interaction between cognition and action in neurologically healthy and impaired individuals. Use a variety of techniques to characterize the functional role of different parts of the motor pathways, including transcranial magnetic stimulation (TMS), functional and structural magnetic resonance imaging (MRI), and electroencephalography (EEG). Recent research investigates the role of the locus coeruleus in various aspects of action control, including reaching movement control, decision making, and behavioral vigor, using transcutaneous vagus nerve stimulation (tVNS) to causally probe this neuromodulatory system. More →