AMPDB: the Arabidopsis Mitochondrial Protein Database

Area of Science:

• Plant Biology
• Mitochondrial Proteomics
• Bioinformatics

Background:

• Mitochondria play crucial roles in plant cellular energy production and metabolism.
• Understanding the mitochondrial proteome is essential for plant research and development.
• Existing resources for plant mitochondrial proteins were limited in scope and integration.

Purpose of the Study:

• To develop an integrated, searchable database of Arabidopsis thaliana mitochondrial proteins.
• To provide access to predicted and experimentally confirmed protein data.
• To facilitate comparative genomics and proteomic analysis.

Main Methods:

• Compilation of nuclear and organelle-encoded protein sequences for Arabidopsis thaliana.
• Integration of published proteomic analyses and predictions from six subcellular-targeting programs.
• Orthology predictions against yeast, human mitochondrial proteins, and Rickettsia proteome.
• Inclusion of physical-biochemical parameters and mass spectral data.
• Development of a relational database with hyperlinks to external Arabidopsis resources (MIPS, TIGR, TAIR).

Main Results:

• The Arabidopsis Mitochondrial Protein Database (AMPdb) is established as an Internet-accessible resource.
• AMPdb contains predicted and experimentally confirmed protein data for Arabidopsis mitochondria.
• The database offers searchable parameters, orthology predictions, and integrated analysis tools (e.g., BLAST).

Conclusions:

• AMPdb serves as a valuable, centralized resource for researchers studying plant mitochondria.
• The database enhances the accessibility and analysis of Arabidopsis mitochondrial proteomic information.
• It supports further investigation into plant mitochondrial function and evolution.