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Numerous cellular functions rely on protein$\unicode{x2013}$protein interactions. Efforts to comprehensively characterize them remain challenged however by the diversity of molecular recognition mechanisms employed within the proteome. Deep…

Biomolecules · Quantitative Biology 2023-12-08 Julia R. Rogers , Gergő Nikolényi , Mohammed AlQuraishi

Protein Contact Network (PCN) is a powerful tool for analysing the structure and function of proteins. In particular, PCN has been used for disclosing the molecular features of allosteric regulation through PCN clustering. Such analysis is…

Quantitative Methods · Quantitative Biology 2022-01-18 Pietro Hiram Guzzi , Luisa Di Paola , Alessandro Giuliani , Pierangelo Veltri

Activity cliffs, which refer to pairs of molecules that are structurally similar but show significant differences in their potency, can lead to model representation collapse and make the model challenging to distinguish them. Our research…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Zhixiang Cheng , Hongxin Xiang , Pengsen Ma , Li Zeng , Xin Jin , Xixi Yang , Jianxin Lin , Yang Deng , Bosheng Song , Xinxin Feng , Changhui Deng , Xiangxiang Zeng

Molecular relational learning (MRL) is crucial for understanding the interaction behaviors between molecular pairs, a critical aspect of drug discovery and development. However, the large feasible model space of MRL poses significant…

Machine Learning · Computer Science 2024-10-22 Sizhe Liu , Jun Xia , Lecheng Zhang , Yuchen Liu , Yue Liu , Wenjie Du , Zhangyang Gao , Bozhen Hu , Cheng Tan , Hongxin Xiang , Stan Z. Li

We introduce a new model of proteins, which extends and enhances the traditional graphical representation by associating a combinatorial object called a fatgraph to any protein based upon its intrinsic geometry. Fatgraphs can easily be…

Biomolecules · Quantitative Biology 2009-05-30 R. C. Penner , Michael Knudsen , Carsten Wiuf , Joergen Ellegaard Andersen

Identifying protein-protein interactions (PPI) is crucial for gaining in-depth insights into numerous biological processes within cells and holds significant guiding value in areas such as drug development and disease treatment. Currently,…

Quantitative Methods · Quantitative Biology 2025-01-30 Jiang Li , Yuan-Ting Li

Graph Neural Networks (GNNs) have been widely adopted for Protein Representation Learning (PRL), as residue interaction networks can be naturally represented as graphs. Current GNN-based PRL methods typically rely on single-perspective…

Artificial Intelligence · Computer Science 2026-01-16 Yusong Wang , Jialun Shen , Zhihao Wu , Yicheng Xu , Shiyin Tan , Mingkun Xu , Changshuo Wang , Zixing Song , Prayag Tiwari

Computational molecular design -- the endeavor to design molecules, with various missions, aided by machine learning and molecular dynamics approaches, has been widely applied to create valuable new molecular entities, from small molecule…

Protein-protein interactions (PPIs) are associated with various diseases, including cancer, infections, and neurodegenerative disorders. Obtaining three-dimensional structural information on these PPIs serves as a foundation to interfere…

Biomolecules · Quantitative Biology 2024-07-24 Xiaotong Xu , Alexandre M. J. J. Bonvin

Graph mining applications, such as subgraph pattern matching and mining, are widely used in real-world domains such as bioinformatics, social network analysis, and computer vision. Such applications are considered a new class of…

Hardware Architecture · Computer Science 2023-06-21 Jiya Su , Peng Jiang , Rujia Wang

A major part of membrane function is conducted by proteins, both integral and peripheral. Peripheral membrane proteins temporarily adhere to biological membranes, either to the lipid bilayer or to integral membrane proteins with…

Biomolecules · Quantitative Biology 2014-06-27 Katerina C. Nastou , Georgios N. Tsaousis , Kimon E. Kremizas , Zoi I. Litou , Stavros J. Hamodrakas

There are several applications in computational biophysics which require the optimization of discrete interacting states; e.g., amino acid titration states, ligand oxidation states, or discrete rotamer angles. Such optimization can be very…

Biomolecules · Quantitative Biology 2016-05-17 Emilie Purvine , Kyle Monson , Elizabeth Jurrus , Keith Star , Nathan A. Baker

Current AI-assisted protein design mainly utilizes protein sequential and structural information. Meanwhile, there exists tremendous knowledge curated by humans in the text format describing proteins' high-level functionalities. Yet,…

Network theorists have developed methods to characterize the complex interactions in natural phenomena. The structure of the network of interactions between proteins is important in the field of proteomics, and has been subject to intensive…

Molecular Networks · Quantitative Biology 2016-09-07 Allan A. Zea , Antonio Rueda-Toicen

It has been shown that genome spatial structures largely affect both genome activity and DNA function. Knowing this, many researchers are currently attempting to accurately model genome structures. Despite these increased efforts there…

Genomics · Quantitative Biology 2015-07-24 Jackson Nowotny , Avery Wells , Lingfei Xu , Renzhi Cao , Tuan Trieu , Chenfeng He , Jianlin Cheng

The Simulation Environment for Atomistic and Molecular Modeling (SEAMM) is an open-source software package written in Python that provides a graphical interface for setting up, executing, and analyzing molecular and materials simulations.…

The accurate prediction of protein-ligand binding affinity is important for drug discovery yet remains challenging for multi-domain proteins, where inter-domain dynamics and flexible linkers govern molecular recognition. Current geometric…

Quantitative Methods · Quantitative Biology 2026-01-27 Shuo Zhang , Jian K. Liu

The limits of molecular dynamics (MD) simulations of macromolecules are steadily pushed forward by the relentless developments of computer architectures and algorithms. This explosion in the number and extent (in size and time) of MD…

Charts are ubiquitous in scientific and financial literature for presenting structured data. However, chart reasoning remains challenging for multimodal large language models (MLLMs) due to the lack of high-quality training data, as well as…

Artificial Intelligence · Computer Science 2026-04-06 Situo Zhang , Yifan Zhang , Zichen Zhu , Da Ma , Lei Pan , Danyang Zhang , Zihan Zhao , Lu Chen , Kai Yu

As protein therapeutics play an important role in almost all medical fields, numerous studies have been conducted on proteins using artificial intelligence. Artificial intelligence has enabled data driven predictions without the need for…

Quantitative Methods · Quantitative Biology 2023-03-30 Myeonghun Lee , Kyoungmin Min