Related Experiment Video
Updated: Dec 28, 2025

A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
Structural facets of POU2F1 in light of the functional annotations and sequence-structure patterns
Ashmita Dey1, Sagnik Sen1, Vladimir N Uversky2,3
1Computer Science and Engineering, Jadavpur University, Kolkata, West Bengal, India.
Abstract:
POU domain class 2 homebox 1 or POU2F1 is broadly known as an important transcription factor. Due to its association with different types of malignancies, POU2F1 became one of the key factors in pancancer analysis. However, in spite of considering this protein as a potential drug target, none of the drug targeting POU2F1 has been designed as of yet due to the extreme structural flexibility of this protein. In this article, we have proposed a three-level comprehensive framework for understanding the structural conservation and co-variation of POU2F1. First, a gene regulatory network based on the normal and pathological functions of POU2F1 has been created for better understanding the strong association between POU2F1 deregulation and cancers. After that, based on the evolutionary sequence space analysis, the comparative sequence dynamics of the protein members of POU domain family has been studied mostly between non-human and human species. Subsequently, the reciprocity effect of the residual co-variation has been identified through direct coupling analysis. Along with that, the structure of POU2F1 has been analyzed depending on quality assessment and normal mode-based structure network. Comparing the sequence and structure space information, the most significant set of residues viz., 3, 9, 13, 17, 20, 21, 28, 35, and 36 have been identified as structural facet for function. This study demonstrates that the structural malleability of POU2F1 serves as one of the prime reason behind its functional multiplicity in terms of protein moonlighting. Communicated by Ramaswamy H. Sarma.
Insights
POU domain class 2 homebox 1 (POU2F1) is a transcription factor linked to cancer. This study developed a framework to analyze POU2F1
Area of Science:
- Molecular Biology
- Bioinformatics
- Genomics
Background:
- POU domain class 2 homebox 1 (POU2F1) is a key transcription factor implicated in various cancers.
- Its structural flexibility hinders the development of targeted drugs, despite its significance in pancancer analysis.
- Understanding POU2F1's structural dynamics is crucial for therapeutic strategies.
Purpose of the Study:
- To propose a comprehensive framework for analyzing the structural conservation and co-variation of POU2F1.
- To elucidate the relationship between POU2F1's structure, function, and its role in cancer.
- To identify key residues responsible for POU2F1's functional multiplicity.
Main Methods:
- Gene regulatory network construction to map POU2F1's normal and pathological functions.
- Evolutionary sequence space analysis and comparative sequence dynamics between species.
- Direct coupling analysis for residual co-variation and structure network analysis.
- Quality assessment and normal mode-based structure network analysis of POU2F1.
Main Results:
- A three-level framework was established to analyze POU2F1 structure and function.
- Key residues (3, 9, 13, 17, 20, 21, 28, 35, 36) were identified as crucial structural facets for function.
- Structural malleability of POU2F1 was confirmed as a reason for its protein moonlighting and functional multiplicity.
Conclusions:
- The developed framework provides insights into POU2F1's structural dynamics and functional roles.
- Identified key residues can guide future drug design targeting POU2F1.
- Understanding POU2F1's structural flexibility is essential for cancer research and therapeutic development.
More Related Videos
07:08Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
Published on: July 14, 2015
10:06Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
Related Concept Videos
Structural Protein Function
Structural Protein Function
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Structure of a Gene
However, only 1% of the DNA is composed of genes that encode proteins; the rest, 99% is non-coding DNA. This non-coding DNA performs...
Tagging and Fusion Proteins
Structure of Porins
Conserved Binding Sites
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...