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Updated: Jul 12, 2025

Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions
Published on: January 26, 2024
FusionPDB: a knowledgebase of human fusion proteins
Himansu Kumar1, Lin-Ya Tang1, Chengyuan Yang2
1Department of Bioinformatics and Systems Medicine, McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
Abstract:
Tumorigenic functions due to the formation of fusion genes have been targeted for cancer therapeutics (i.e. kinase inhibitors). However, many fusion proteins involved in various cellular processes have not been studied for targeted therapeutics. This is because the lack of complete fusion protein sequences and their whole 3D structures has made it challenging to develop new therapeutic strategies. To fill these critical gaps, we developed a computational pipeline and a resource of human fusion proteins named FusionPDB, available at https://compbio.uth.edu/FusionPDB. FusionPDB is organized into four levels: 43K fusion protein sequences (14.7K in-frame fusion genes, Level 1), over 2300 + 1267 fusion protein 3D structures (from 2300 recurrent and 266 manually curated in-frame fusion genes, Level 2), pLDDT score analysis for the 1267 fusion proteins from 266 manually curated fusion genes (Level 3), and virtual screening outcomes for 68 selected fusion proteins from 266 manually curated fusion genes (Level 4). FusionPDB is the only resource providing whole 3D structures of fusion proteins and comprehensive knowledge of human fusion proteins. It will be regularly updated until it covers all human fusion proteins in the future.
Insights
FusionPDB provides a comprehensive database of human fusion protein sequences and 3D structures, aiding the development of targeted cancer therapeutics. This resource addresses critical gaps in understanding fusion proteins for novel drug discovery.
Area of Science:
- Computational biology and bioinformatics
- Structural biology
- Cancer genomics
Background:
- Fusion proteins, resulting from gene fusions, play significant roles in tumorigenesis and other cellular processes.
- Targeting fusion proteins offers therapeutic potential, but a lack of sequence and structural data hinders drug development.
- Existing resources lack comprehensive information on the complete sequences and 3D structures of human fusion proteins.
Purpose of the Study:
- To develop a computational pipeline and resource for human fusion proteins.
- To provide comprehensive data on human fusion protein sequences and 3D structures.
- To facilitate the development of targeted therapeutic strategies against fusion proteins.
Main Methods:
- Development of a computational pipeline for identifying and analyzing fusion proteins.
- Creation of FusionPDB, a curated database of human fusion protein sequences and 3D structures.
- Integration of protein structure prediction, quality assessment (pLDDT scores), and virtual screening data.
Main Results:
- FusionPDB contains over 43,000 fusion protein sequences, including 14,700 in-frame fusion genes.
- The database includes over 3,500 unique fusion protein 3D structures.
- pLDDT score analysis and virtual screening outcomes are provided for selected fusion proteins.
Conclusions:
- FusionPDB is a unique resource offering complete 3D structures and comprehensive data on human fusion proteins.
- This resource addresses critical knowledge gaps, enabling further research and development of targeted therapeutics.
- FusionPDB will be continuously updated to encompass all human fusion proteins.
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