Related Experiment Video
Updated: Sep 20, 2025
10:52
Sample Preparation for Mass Spectrometry-based Identification of RNA-binding Regions
Published on: September 28, 2017
8.2K
Integrative analysis and prediction of human R-loop binding proteins.
Arun Kumar1,2, Louis-Alexandre Fournier1,3, Peter C Stirling1,2,3
1Terry Fox Laboratory, BC Cancer, Vancouver, BC V5Z1L3, Canada.
G3 (Bethesda, Md.)
|June 6, 2022
Summary
Researchers developed a machine learning model to identify proteins that bind to R-loop structures, crucial for epigenome regulation and DNA repair. This tool helps discover new R-loop binding proteins like LIG1 and FXR1.
Area of Science:
- Molecular Biology
- Genomics
- Bioinformatics
Background:
- R-loop structures are increasingly recognized for their roles in epigenome regulation, telomere maintenance, DNA repair, and replication.
- Numerous proteins may directly or indirectly regulate R-loop dynamics, necessitating methods to identify them.
Purpose of the Study:
- To identify common features of R-loop binding proteins.
- To develop a predictive model for identifying novel R-loop binding proteins.
Main Methods:
- Mining published proteomic studies to identify 10 enriched features in R-loop binding proteins.
- Applying an easy-ensemble machine learning approach with random forest classifiers.
- Utilizing protein features and amino acid composition for prediction.
Main Results:
- Developed a machine learning model to predict the likelihood of a protein binding to R-loops.
- Identified known R-loop regulating pathways like splicing, DNA damage repair, and chromatin remodeling.
- Validated two new R-loop binding proteins, LIG1 and FXR1, in human cells.
Conclusions:
- The developed machine learning approach and identified features provide a valuable reference for discovering novel R-loop regulatory proteins.
- This work facilitates further research into the roles of R-loops in various cellular processes.
Related Concept Videos
01:49Conserved Binding Sites
4.4K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.4K
02:04Protein-protein Interfaces
13.8K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
13.8K