Related Experiment Video
Updated: Dec 22, 2025
16:41
A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
69.6K
PredDBP-Stack: Prediction of DNA-Binding Proteins from HMM Profiles using a Stacked Ensemble Method.
Jun Wang1, Huiwen Zheng2, Yang Yang3
1College of Information, Shanghai Ocean University, Shanghai 201306, China.
Biomed Research International
|May 1, 2020
Summary
We developed PredDBP-Stack, a computational method to identify DNA-binding proteins (DBPs) using only protein sequences. This novel approach accurately predicts DBPs, saving time and resources compared to traditional experimental methods.
Area of Science:
- Computational biology
- Bioinformatics
- Molecular biology
Background:
- DNA-binding proteins (DBPs) are crucial for genetic activities.
- Experimental identification of DBPs is time-consuming and labor-intensive.
Purpose of the Study:
- To develop a novel computational method, PredDBP-Stack, for predicting DBPs from protein sequences.
- To provide an efficient and accurate alternative to experimental DBP identification.
Main Methods:
- Utilized amino acid composition (AAC) and transition probability composition (TPC) from Hidden Markov Model (HMM) profiles for protein representation.
- Developed a two-stage stacked ensemble model with four base classifiers and a meta-classifier.
- Performed jackknife cross-validation on the PDB1075 benchmark dataset and tested on the PDB186 independent dataset.
Main Results:
- Achieved a balanced sensitivity of 92.47% and specificity of 92.36% on the PDB1075 dataset.
- Outperformed most existing DBP identification classifiers.
- Demonstrated superior performance and model robustness on the PDB186 independent dataset.
Conclusions:
- PredDBP-Stack is an effective computational tool for accurate DBP identification using only protein sequence information.
- The method offers a significant advancement in the field, reducing experimental burden.
More Related Videos
Related Concept Videos
01:49Conserved Binding Sites
5.0K
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...
5.0K
01:03Single-Strand DNA Binding Proteins
16.3K
For successful DNA replication, the unwinding of double-stranded DNA must be accompanied by stabilization and protection of the separated single strands of the DNA. This crucial task is performed by single-strand DNA-binding (SSB) proteins. They bind to the DNA in a sequence-independent manner, which means that the nitrogenous bases of the DNA need not be present in a specific order for binding of SSB proteins to it. The binding of SSB proteins straightens single-stranded DNA (ssDNA) and makes...
16.3K