⚛️ The First Quantum Chemistry-Driven End-to-End Virtual Drug Discovery System: LiTENexus Officially Released
🧪 Industry Pain Point: The Critical Gap Between "Active Molecule" and "Drug Candidate"
A molecule showing promising activity in silico still faces multiple validation hurdles before becoming a qualified drug candidate, including solubility, membrane permeability, in vivo exposure, toxicity, and target selectivity. Most current AI molecular models rely on data-driven statistical fitting, leading to unstable performance in out-of-distribution (OOD) chemical spaces such as natural products and cyclic peptides, as well as poor interpretability. This has become the fundamental bottleneck preventing AI drug discovery from evolving from an "auxiliary tool" to a "decision core".
⚛️ Core Paradigm Shift: Return to First Principles of Physics
LiTENexus introduces the Quantum Chemical Information Injection (QCII) mechanism, which for the first time directly encodes fundamental quantum chemical laws (potential energy surfaces, charge distributions, dipole moments, etc.) into neural operators, building an end-to-end quantum-inspired virtual drug discovery platform.
Vertical Integration: Unified cross-scale mapping from quantum chemical fundamentals → physical representations → macroscopic pharmacological properties
Horizontal Closed Loop: Complete workflow covering molecular generation → conformation optimization → virtual screening → ADMET prediction → multi-objective optimization
Core Foundation: The LiTEN-Base universal physical operator provides a unified physical representation backbone for the entire pipeline
🔑 Fundamental Technical Breakthrough: LiTEN-Base Cross-Scale Physical Representation Engine
Unlike traditional models that only learn data correlations, LiTEN-Base treats molecules as continuous physical distributions in local geometric fields, and accurately characterizes molecular interactions through its original dual-module design:
Many-Body Interaction (MBI) Operator: Captures local chemical environments within 5Å, precisely modeling fine structural features such as bond angles and torsional energy barriers
Dual-Body Interaction (DBI) Operator: Extends the receptive field to 10Å, explicitly simulating long-range non-covalent interactions including dipole-dipole effects and induced polarization
Through staged physical pre-training on tens of millions of quantum chemistry data points, LiTEN-Base internalizes the basic physical laws governing molecular behavior, and differentiates into two foundational modules: LiTEN-FF (conformational optimization) and LiTEN-Micro (microscopic property prediction), fundamentally solving the poor generalization and weak interpretability issues of traditional models.
🔬 Quantum-Level Microscopic Precision with Unprecedented Speedup
Delivers prediction accuracy matching the M06-2X DFT method, while running 2–3 orders of magnitude faster than standard DFT calculations
Achieves a conformational optimization MAE of 0.09 kcal/mol, well below the 1 kcal/mol chemical accuracy threshold
Outperforms mainstream functionals (PBE, B3LYP-D3BJ) in charge distribution and molecular dipole moment prediction
💊 State-of-the-Art Macroscopic Pharmacokinetic Prediction
Surpasses 20 SOTA baselines (including KPGT and CHMR multimodal architectures) on the Biogen industrial dataset
Excels in 25/33 metrics on PharmaBench and 62/77 tasks on ADMETLAB 3.0
Exhibits robust out-of-distribution (OOD) generalization for natural products and cyclic peptides
🔍 Novel Cross-Modal Virtual Screening Paradigm
Introduces Quantum Manifold Dense Retrieval (QMDR) framework for pose-free target-ligand interaction modeling
Achieves EF₁% = 44.06 on DUD-E (38.2% improvement over DrugCLIP)
Delivers EF₁% = 6.77 on the challenging LIT-PCBA benchmark for true binder discrimination
✅ Modular End-to-End Drug Discovery Pipeline
Unified end-to-end workflow spanning molecular generation, conformation optimization, ADMET evaluation, and virtual screening
All modules are fully interoperable and can be used independently for targeted research tasks
🌐 Online platform:
cadd.zju.edu.cn/litenexus (Welcome to use)
📄 Preprint:
chemrxiv.org/doi/full/10.264…
💻 Open-source code:
github.com/lingcon01/LiTENex…
#AIDD #DrugDiscovery #VirtualDrugDiscovery #AIforScience #QuantumChemistry #PhysicsInformedAI #MachineLearning #ComputationalChemistry #FirstPrinciplesAI