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MitoDrome: a database of Drosophila melanogaster nuclear genes encoding proteins targeted to the mitochondrion
Marco Sardiello1, Flavio Licciulli, Domenico Catalano
1Dipartimento di Genetica e Anatomia Patologica, Università di Bari, Via E. Orabona 4, 70126 Bari, Italy.
Abstract:
Mitochondria are organelles present in the cytoplasm of most eukaryotic cells; although they have their own DNA, the majority of the proteins necessary for a functional mitochondrion are coded by the nuclear DNA and only after transcription and translation they are imported in the mitochondrion as proteins. The primary role of the mitochondrion is electron transport and oxidative phosphorylation. Although it has been studied for a long time, the interest of researchers in mitochondria is still alive thanks to the discovery of mitochondrial role in apoptosis, aging and cancer. Aim of the MitoDrome database is to annotate the Drosophila melanogaster nuclear genes coding for mitochondrial proteins in order to contribute to the functional characterization of nuclear genes coding for mitochondrial proteins and to knowledge of gene diseases related to mitochondrial dysfunctions. Indeed D. melanogaster is one of the most studied organisms and a model for the Human genome. Data are derived from the comparison of Human mitochondrial proteins versus the Drosophila genome, ESTs and cDNA sequence data available in the FlyBase database. Links from the MitoDrome entries to the related homologous entries available in MitoNuC will be soon imple-mented. The MitoDrome database is available at http://bighost.area.ba.cnr.it/BIG/MitoDrome. Data are organised in a flat-file format and can be retrieved using the SRS system.
Insights
The MitoDrome database annotates Drosophila melanogaster nuclear genes encoding mitochondrial proteins, aiding research into mitochondrial function and related diseases. This resource leverages Drosophila as a model organism for human genome studies.
Area of Science:
- Cell Biology
- Genomics
- Bioinformatics
Background:
- Mitochondria, crucial for cellular energy, rely on nuclear-encoded proteins.
- Mitochondrial dysfunction is implicated in aging, apoptosis, and cancer.
- Drosophila melanogaster serves as a valuable model organism for human genetics.
Purpose of the Study:
- To create the MitoDrome database, annotating nuclear genes for mitochondrial proteins in Drosophila.
- To facilitate functional characterization of these genes and understand mitochondrial disease links.
- To provide a resource for comparative genomics between human and Drosophila mitochondrial proteins.
Main Methods:
- Comparative analysis of human mitochondrial proteins against the Drosophila genome.
- Utilizing sequence data from Drosophila genome, ESTs, and cDNAs.
- Data retrieval via the SRS system from a flat-file format database.
Main Results:
- The MitoDrome database provides comprehensive annotations of Drosophila nuclear genes coding for mitochondrial proteins.
- The database facilitates the study of mitochondrial protein function and its relation to human diseases.
- Future integration with MitoNuC will enhance cross-species comparative analysis.
Conclusions:
- MitoDrome is a valuable resource for researchers studying mitochondrial biology and genetics.
- The database supports functional genomics and the investigation of mitochondrial disease mechanisms.
- Drosophila melanogaster continues to be a key model for understanding fundamental cellular processes and human health.