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The three dimensional structure of a protein is an outcome of the interactions of its constituent amino acids in 3D space. Considering the amino acids as nodes and the interactions among them as edges we have constructed and analyzed…

Biomolecules · Quantitative Biology 2010-07-26 Dhriti Sengupta , Sudip Kundu

Learning effective protein representations is critical in a variety of tasks in biology such as predicting protein function or structure. Existing approaches usually pretrain protein language models on a large number of unlabeled amino acid…

Machine Learning · Computer Science 2023-01-31 Zuobai Zhang , Minghao Xu , Arian Jamasb , Vijil Chenthamarakshan , Aurelie Lozano , Payel Das , Jian Tang

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

Deep Learning (DL) algorithms hold great promise for applications in the field of computational biophysics. In fact, the vast amount of available molecular structures, as well as their notable complexity, constitutes an ideal context in…

Soft Condensed Matter · Physics 2019-01-07 Marco Giulini , Raffaello Potestio

Interactive molecular graphics applications facilitate analysis of three dimensional protein structures. Naturally, non-interactive 2-D snapshots of the protein structures do not convey the same level of geometric detail. Several 2-D…

Quantitative Methods · Quantitative Biology 2014-02-24 Francis Bell , Chunyu Zhao , Ahmet Sacan

Initial protein structural comparisons were sequence-based. Since amino acids that are distant in the sequence can be close in the 3-dimensional (3D) structure, 3D contact approaches can complement sequence approaches. Traditional 3D…

Molecular Networks · Quantitative Biology 2017-03-01 Fazle E. Faisal , Julie L. Chaney , Khalique Newaz , Jun Li , Scott J. Emrich , Patricia L. Clark , Tijana Milenkovic

In this paper, we develop a quantitative comparison method for two arbitrary protein structures. This method uses a root-mean-square deviation (RMSD) characterization and employs a series expansion of the protein's shape function in terms…

Biological Physics · Physics 2013-12-02 Seyed Majid S. M. Saberi Fathi , Jack A Tuszynski

Realistic microscale domains are an essential step towards making modern multiscale simulations more applicable to computational materials engineering. For this purpose, 3D computed tomography scans can be very expensive or technically…

Based on overall 3D structure, proteins may be grouped into two broad categories, namely, globular proteins (spheroproteins), and elongated or rod-shaped proteins (RSP). The former comprises a significant majority of proteins. This work…

Biomolecules · Quantitative Biology 2016-02-29 Srujana Cheguri , Vicente M. Reyes

As the structural databases continue to expand, efficient methods are required to search similar structures of the query structure from the database. There are many previous works about comparing protein 3D structures and scanning the…

Databases · Computer Science 2011-02-16 Gook-Pil Roh , Seung-won Hwang , Byoung-Kee Yi

Intrinsically disordered proteins (IDPs) constitute a broad set of proteins with few uniting and many diverging properties. IDPs-and intrinsically disordered regions (IDRs) interspersed between folded domains-are generally characterized as…

Biomolecules · Quantitative Biology 2021-06-03 Kresten Lindorff-Larsen , Birthe B. Kragelund

In this paper we address the problem of protein classification starting from a multi-view 2D representation of proteins. From each 3D protein structure, a large set of 2D projections is generated using the protein visualization software…

Computer Vision and Pattern Recognition · Computer Science 2019-10-30 Loris Nanni , Alessandra Lumini , Federica Pasquali , Sheryl Brahnam

Composed of amino acid chains that influence how they fold and thus dictating their function and features, proteins are a class of macromolecules that play a central role in major biological processes and are required for the structure,…

Quantitative Methods · Quantitative Biology 2022-07-15 Aaron Wang

Proteins are miniature machines whose function depends on their three-dimensional (3D) structure. Determining this structure computationally remains an unsolved grand challenge. A major bottleneck involves selecting the most accurate…

Quantitative Methods · Quantitative Biology 2020-11-30 Stephan Eismann , Patricia Suriana , Bowen Jing , Raphael J. L. Townshend , Ron O. Dror

In multi-domain proteins, the domains are connected by a flexible unstructured region called as protein domain linker. The accurate demarcation of these linkers holds a key to understanding of their biochemical and evolutionary attributes.…

Computational Engineering, Finance, and Science · Computer Science 2012-11-26 Vivekanand Samant , Arvind Hulgeri , Alfonso Valencia , Ashish V. Tendulkar

Designing novel functional proteins crucially depends on accurately modeling their fitness landscape. Given the limited availability of functional annotations from wet-lab experiments, previous methods have primarily relied on…

Machine Learning · Computer Science 2024-12-03 Zuobai Zhang , Pascal Notin , Yining Huang , Aurélie Lozano , Vijil Chenthamarakshan , Debora Marks , Payel Das , Jian Tang

While many good textbooks are available on Protein Structure, Molecular Simulations, Thermodynamics and Bioinformatics methods in general, there is no good introductory level book for the field of Structural Bioinformatics. This book aims…

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

Despite the significant increase in computational power, molecular modeling of protein structure using classical all-atom approaches remains inefficient, at least for most of the protein targets in the focus of biomedical research. Perhaps…

Biomolecules · Quantitative Biology 2016-11-01 Sebastian Kmiecik , Andrzej Kolinski

Three-dimensional protein structures usually contain regions of local order, called secondary structure, such as $\alpha$-helices and $\beta$-sheets. Secondary structure is characterized by the local rotational state of the protein…

Biomolecules · Quantitative Biology 2016-08-10 Ranjan V. Mannige , Joyjit Kundu , Stephen Whitelam