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Protein-Protein Interactions (PPIs) perform essential roles in biological functions. Although some experimental techniques have been developed to detect PPIs, they suffer from high false positive and high false negative rates. Consequently,…

Quantitative Methods · Quantitative Biology 2017-12-29 Samaneh Aghajanbaglo , Sobhan Moosavi , Maseud Rahgozar , Amir Rahimi

Aligning multiple protein structures can yield valuable information about structural similarities among related proteins, as well as provide insight into evolutionary relationships between proteins in a family. We have developed an…

Biomolecules · Quantitative Biology 2019-11-07 Paul Shealy , Homayoun Valafar

Since proteins carry out biological processes by interacting with other proteins, analyzing the structure of protein-protein interaction (PPI) networks could explain complex biological mechanisms, evolution, and disease. Similarly, studying…

Molecular Networks · Quantitative Biology 2010-04-22 Vesna Memisevic , Tijana Milenkovic , Natasa Przulj

Background. Human aging is linked to many prevalent diseases. The aging process is highly influenced by genetic factors. Hence, it is important to identify human aging-related genes. We focus on supervised prediction of such genes. Gene…

Molecular Networks · Quantitative Biology 2020-04-28 Qi Li , Tijana Milenković

Complex interactions between genes or proteins contribute a substantial part to phenotypic evolution. Here we develop an evolutionarily grounded method for the cross-species analysis of interaction networks by {\em alignment}, which maps…

Molecular Networks · Quantitative Biology 2009-11-13 Johannes Berg , Michael Lässig

Protein-protein interaction (PPI) prediction plays a pivotal role in deciphering cellular functions and disease mechanisms. To address the limitations of traditional experimental methods and existing computational approaches in cross-modal…

Machine Learning · Computer Science 2025-04-29 Shengrui XU , Tianchi Lu , Zikun Wang , Jixiu Zhai

Recent advances in AI for science have highlighted the power of contrastive learning in bridging heterogeneous biological data modalities. Building on this paradigm, we propose HIPPO (HIerarchical Protein-Protein interaction prediction…

Machine Learning · Computer Science 2025-08-05 Shiyi Liu , Buwen Liang , Yuetong Fang , Zixuan Jiang , Renjing Xu

Genomic duplication-divergence events, which are the primary source of new protein functions, occur stochastically at a wide range of genomic scales, from single gene to whole genome duplications. Clearly, this fundamental evolutionary…

Molecular Networks · Quantitative Biology 2007-05-23 Kirill Evlampiev , Herve Isambert

Protein-protein interaction (PPI) extraction from published scientific literature provides additional support for precision medicine efforts. However, many of the current PPI extraction methods need extensive feature engineering and cannot…

Computation and Language · Computer Science 2020-01-08 Huiwei Zhou , Zhuang Liu1 , Shixian Ning , Chengkun Lang , Yingyu Lin , Lei Du

Compound-Protein Interaction (CPI) prediction aims to predict the pattern and strength of compound-protein interactions for rational drug discovery. Existing deep learning-based methods utilize only the single modality of protein sequences…

Biomolecules · Quantitative Biology 2024-02-14 Lirong Wu , Yufei Huang , Cheng Tan , Zhangyang Gao , Bozhen Hu , Haitao Lin , Zicheng Liu , Stan Z. Li

Protein (receptor)--ligand interaction prediction is a critical component in computer-aided drug design, significantly influencing molecular docking and virtual screening processes. Despite the development of numerous scoring functions in…

Biomolecules · Quantitative Biology 2024-01-22 Haoyu Lin , Shiwei Wang , Jintao Zhu , Yibo Li , Jianfeng Pei , Luhua Lai

Motivation: Protein-protein interactions (PPIs) are usually modelled as networks. These networks have extensively been studied using graphlets, small induced subgraphs capturing the local wiring patterns around nodes in networks. They…

Molecular Networks · Quantitative Biology 2018-04-13 Noel Malod-Dognin , Natasa Przulj

Protein-protein interactions (PPIs) play key roles in a broad range of biological processes. Numerous strategies have been proposed for predicting PPIs, and among them, graph-based methods have demonstrated promising outcomes owing to the…

Machine Learning · Computer Science 2024-04-19 Mingda Xu , Peisheng Qian , Ziyuan Zhao , Zeng Zeng , Jianguo Chen , Weide Liu , Xulei Yang

Network alignment aims to uncover topologically similar regions in the protein-protein interaction (PPI) networks of two or more species under the assumption that topologically similar regions tend to perform similar functions. Although…

Molecular Networks · Quantitative Biology 2021-09-28 Wayne B. Hayes

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

Protein-protein interactions (PPIs) govern nearly all cellular processes, yet computational methods for identifying binding partners typically produce ranked predictions without mechanistic justification. This creates a fundamental barrier…

Quantitative Methods · Quantitative Biology 2026-05-22 Kingsley Yeon , Xuefeng Liu , Promit Ghosal

Motivation: Peptide-protein interactions (PepPIs) are central to cellular regulation and peptide therapeutics, but experimental characterization remains too slow for large-scale screening. Existing methods usually emphasize either…

Machine Learning · Computer Science 2026-04-28 Chupei Tang , Junxiao Kong , Moyu Tang , Di Wang , Jixiu Zhai , Ronghao Xie , Shangkun Sima , Tianchi Lu

Understanding protein-protein interactions is central to our understanding of almost all complex biological processes. Computational tools exploiting rapidly growing genomic databases to characterize protein-protein interactions are…

Quantitative Methods · Quantitative Biology 2016-10-28 Thomas Gueudré , Carlo Baldassi , Marco Zamparo , Martin Weigt , Andrea Pagnani

Protein-Protein Interactions (PPIs) are fundamental in various biological processes and play a key role in life activities. The growing demand and cost of experimental PPI assays require computational methods for efficient PPI prediction.…

Machine Learning · Computer Science 2024-02-23 Lirong Wu , Yijun Tian , Yufei Huang , Siyuan Li , Haitao Lin , Nitesh V Chawla , Stan Z. Li

Complexes of physically interacting proteins are one of the fundamental functional units responsible for driving key biological mechanisms within the cell. Their identification is therefore necessary not only to understand complex formation…

Computational Engineering, Finance, and Science · Computer Science 2012-11-27 Sriganesh Srihari , Hon Wai Leong