arXiv Machine Learning

Transferring Peptide-Target Interaction Patterns to Small Molecules by Joint Guidance for Diffusion and Flow Matching

The paper introduces PIFT, a framework that transfers peptide‑target interaction patterns to small molecules by jointly guiding masked discrete diffusion and continuous flow matching. PIFT maps peptide‑target and small‑molecule‑target interfaces into a shared, target‑conditioned interaction space, enabling peptide‑derived references to steer both building‑block logits and 3D coordinates toward peptide‑compatible molecules while maintaining a strong molecular prior. Experiments on diverse protein‑protein interaction targets demonstrate that this cross‑modal representation improves interface recovery, docking performance, and molecular properties.

arXiv AI
Jul 21

Do Language Models Dream of Binding Molecules? Benchmarking LLMs under Spatial Constraints

arXiv:2607. 18144v1 Announce Type: cross Abstract: Structure-based drug design (SBDD) leverages the 3D structure of protein targets, often complemented by other spatial constraints, to generate candidate binding molecules.

By Thomas MacDougall, Maksim Kuznetsov, Roman Schutski, Rim Shayakhmetov, Maxim Malkov, Vladimir Aladinskiy, Alex Aliper, Alex Zhavoronkov
arXiv AI
Jun 8

ShallowBench: Benchmarking Generative Drug Design Models on Shallow-Pocket Targets

arXiv:2606. 06717v1 Announce Type: cross Abstract: While generative AI models have demonstrated remarkable success in structure-based drug design, they predominantly rely on deep binding pockets and struggle to sample effective ligands for challenging low-pocketability targets, such as the historically "undruggable" oncology targets KRAS and MYC.

By Saket Reddy, Shiwei Liu
arXiv Machine Learning
Jul 2

SynLaD: Latent Diffusion for Generating Synthesizable Molecules Conditioned on 3D Pharmacophore Profiles

arXiv:2607. 01105v1 Announce Type: new Abstract: We present SynLaD, a latent diffusion framework for small-molecule generation that unifies ligand-based drug design objectives (what to make) with synthetic accessibility (how to make it).

By Miruna Cretu, John Bradshaw, Patricia Suriana, Saeed Saremi, Omar Mahmood, Kirill Shmilovich, Kangway Chuang, Vishnu Sresht, Colin Grambow
arXiv Machine Learning
6d ago

MLIPDiff: Guiding Denoising Diffusion Models for Structure-Based Drug Design via Machine-Learned Interatomic Potentials

MLIPDiff is an inference‑time guidance technique that enhances pretrained denoising diffusion models for ligand generation by incorporating physics‑informed guidance from a machine‑learned interatomic potential (UMA). It combines four weighted energy terms—protein‑ligand interaction, ligand strain, steric clash, and pocket anchoring—to eliminate protein‑ligand collisions while preserving local geometry, without requiring model retraining. On the CrossDocked2020 benchmark, MLIPDiff produces clash‑free, physically plausible ligand poses and achieves superior binding‑affinity metrics compared to both the base diffusion model and NucleusDiff.

By Yiyan Liao, Amin Tavakoli, Yu Zhang, Anima Anandkumar
arXiv Machine Learning
Sep 10

FuseDiff: Symmetry-Preserving Joint Diffusion for Dual-Target Structure-Based Drug Design

FuseDiff is an end‑to‑end diffusion model designed for dual‑target structure‑based drug design, jointly generating a ligand graph and two pocket‑specific binding poses conditioned on both target pockets. It employs a message‑passing backbone with Dual‑target Local Context Fusion (DLCF) to fuse ligand atom contexts from both pockets, preserving symmetry while enabling expressive joint modeling. The model enforces topological consistency across the two poses and allows target‑specific geometric adaptation, achieving state‑of‑the‑art docking performance and enabling systematic assessment of dual‑target pose quality before docking‑based pose search.

By Jianliang Wu, Anjie Qiao, Zhen Wang, Zhewei Wei, Sheng Chen
arXiv AI
Sep 7

NEAT-POCKET: Pocket-Conditioned Autoregressive 3D Molecular Generation with a Neighborhood-Guided Set Transformer

NEAT-POCKET is a pocket‑conditioned extension of the autoregressive NEAT model that generates 3D molecules atom by atom within protein binding pockets, maintaining atom permutation invariance and explicitly modeling hydrogen atoms. It outperforms existing baselines on the CrossDocked and SPINDR datasets, achieving competitive structure‑based generation performance while sampling significantly faster. The model also supports pocket‑conditioned fragment completion, a capability directly useful for lead optimization and scaffold elaboration in drug design.

By Roxane Axel Jacob, Daniel Rose, Thierry Langer, Johannes Kirchmair
arXiv Machine Learning
Oct 3

SupraTITO: Transferable Generative Molecular Dynamics for Supramolecular Systems

SupraTITO is a transferable generative molecular dynamics framework designed for supramolecular systems, specifically peptide self‑assembly. It learns implicit transfer operators conditioned on peptide sequence, molecular topology, and periodic geometry, enabling the propagation of configurations over time intervals far longer than a single MD step. On a dipeptide benchmark, SupraTITO generalizes to unseen sequences, accurately reproduces sequence‑dependent structures and dynamics, and maintains molecular integrity over long rollouts, outperforming direct ensemble prediction models.

By Weilong Chen, Nuno Costa, Julija Zavadlav