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Motif scaffolding seeks to design scaffold structures for constructing proteins with functions derived from the desired motif, which is crucial for the design of vaccines and enzymes. Previous works approach the problem by inpainting or…

Biomolecules · Quantitative Biology 2024-06-06 Ke Liu , Weian Mao , Shuaike Shen , Xiaoran Jiao , Zheng Sun , Hao Chen , Chunhua Shen

Protein design often begins with the knowledge of a desired function from a motif which motif-scaffolding aims to construct a functional protein around. Recently, generative models have achieved breakthrough success in designing scaffolds…

The motif-scaffolding problem is a central task in computational protein design: Given the coordinates of atoms in a geometry chosen to confer a desired biochemical function (a motif), the task is to identify diverse protein structures…

Machine Learning · Computer Science 2025-02-20 Zhuoqi Zheng , Bo Zhang , Kieran Didi , Kevin K. Yang , Jason Yim , Joseph L. Watson , Hai-Feng Chen , Brian L. Trippe

Many protein design applications, such as binder or enzyme design, require scaffolding a structural motif with high precision. Generative modelling paradigms based on denoising diffusion processes emerged as a leading candidate to address…

Machine Learning · Computer Science 2024-03-15 Kieran Didi , Francisco Vargas , Simon V Mathis , Vincent Dutordoir , Emile Mathieu , Urszula J Komorowska , Pietro Lio

The design of novel protein structures remains a challenge in protein engineering for applications across biomedicine and chemistry. In this line of work, a diffusion model over rigid bodies in 3D (referred to as frames) has shown success…

Machine Learning · Computer Science 2023-05-24 Jason Yim , Brian L. Trippe , Valentin De Bortoli , Emile Mathieu , Arnaud Doucet , Regina Barzilay , Tommi Jaakkola

With the advent of diffusion models, new proteins can be generated at an unprecedented rate. The motif scaffolding problem requires steering this generative process to yield proteins with a desirable functional substructure called a motif.…

Biomolecules · Quantitative Biology 2025-10-06 James Matthew Young , O. Deniz Akyildiz

Inverse protein folding generates valid amino acid sequences that can fold into a desired protein structure, with recent deep-learning advances showing strong potential and competitive performance. However, challenges remain, such as…

Biomolecules · Quantitative Biology 2025-07-29 Peizhen Bai , Filip Miljković , Xianyuan Liu , Leonardo De Maria , Rebecca Croasdale-Wood , Owen Rackham , Haiping Lu

Structure-based drug design (SBDD), which aims to generate molecules that can bind tightly to the target protein, is an essential problem in drug discovery, and previous approaches have achieved initial success. However, most existing…

Machine Learning · Computer Science 2024-04-04 Xinze Li , Penglei Wang , Tianfan Fu , Wenhao Gao , Chengtao Li , Leilei Shi , Junhong Liu

Diffusion models offer a powerful means of capturing the manifold of realistic protein structures, enabling rapid design for protein engineering tasks. However, existing approaches observe critical failure modes when precise constraints are…

Biomolecules · Quantitative Biology 2026-03-27 Jacob K. Christopher , Austin Seamann , Jingyi Cui , Sagar Khare , Ferdinando Fioretto

The ability to computationally generate novel yet physically foldable protein structures could lead to new biological discoveries and new treatments targeting yet incurable diseases. Despite recent advances in protein structure prediction,…

Biomolecules · Quantitative Biology 2022-11-28 Kevin E. Wu , Kevin K. Yang , Rianne van den Berg , James Y. Zou , Alex X. Lu , Ava P. Amini

Effective generation of molecular structures, or new chemical entities, that bind to target proteins is crucial for lead identification and optimization in drug discovery. Despite advancements in atom- and motif-wise deep learning models…

Machine Learning · Computer Science 2025-03-04 Guanlue Li , Chenran Jiang , Ziqi Gao , Yu Liu , Chenyang Liu , Jiean Chen , Yong Huang , Jia Li

Since its foundations, more than one hundred years ago, the field of structural biology has strived to understand and analyze the properties of molecules and their interactions by studying the structure that they take in 3D space. However,…

Biomolecules · Quantitative Biology 2023-02-27 Gabriele Corso

Searching new molecules in areas like drug discovery often starts from the core structures of candidate molecules to optimize the properties of interest. The way as such has called for a strategy of designing molecules retaining a…

Machine Learning · Computer Science 2020-09-03 Jaechang Lim , Sang-Yeon Hwang , Seungsu Kim , Seokhyun Moon , Woo Youn Kim

We propose SymDiff, a method for constructing equivariant diffusion models using the framework of stochastic symmetrisation. SymDiff resembles a learned data augmentation that is deployed at sampling time, and is lightweight,…

Machine Learning · Computer Science 2025-03-04 Leo Zhang , Kianoosh Ashouritaklimi , Yee Whye Teh , Rob Cornish

In this work, we introduce AutoFragDiff, a fragment-based autoregressive diffusion model for generating 3D molecular structures conditioned on target protein structures. We employ geometric vector perceptrons to predict atom types and…

Biomolecules · Quantitative Biology 2024-01-12 Mahdi Ghorbani , Leo Gendelev , Paul Beroza , Michael J. Keiser

Protein structure prediction is pivotal for understanding the structure-function relationship of proteins, advancing biological research, and facilitating pharmaceutical development and experimental design. While deep learning methods and…

Machine Learning · Computer Science 2024-12-30 Kaihui Cheng , Ce Liu , Qingkun Su , Jun Wang , Liwei Zhang , Yining Tang , Yao Yao , Siyu Zhu , Yuan Qi

Recent advances in geometric deep learning and generative modeling have enabled the design of novel proteins with a wide range of desired properties. However, current state-of-the-art approaches are typically restricted to generating…

Biomolecules · Quantitative Biology 2025-08-26 Vsevolod Viliuga , Leif Seute , Nicolas Wolf , Simon Wagner , Arne Elofsson , Jan Stühmer , Frauke Gräter

Scaffold hopping is a drug discovery strategy to generate new chemical entities by modifying the core structure, the \emph{scaffold}, of a known active compound. This approach preserves the essential molecular features of the original…

Biomolecules · Quantitative Biology 2023-08-16 Jos Torge , Charles Harris , Simon V. Mathis , Pietro Lio

Nature creates diverse proteins through a 'divide and assembly' strategy. Inspired by this idea, we introduce ProteinWeaver, a two-stage framework for protein backbone design. Our method first generates individual protein domains and then…

Biomolecules · Quantitative Biology 2024-11-28 Yiming Ma , Fei Ye , Yi Zhou , Zaixiang Zheng , Dongyu Xue , Quanquan Gu

The computational design of novel protein structures has the potential to impact numerous scientific disciplines greatly. Toward this goal, we introduce FoldFlow, a series of novel generative models of increasing modeling power based on the…

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