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Using Live Cell STED Imaging to Visualize Mitochondrial Inner Membrane Ultrastructure in Neuronal Cell Models
Published on: June 30, 2023
Evolution, structure and function of mitochondrial carriers: a review with new insights
Ferdinando Palmieri1, Ciro L Pierri, Anna De Grassi
1Laboratory of Biochemistry and Molecular Biology, Department of Pharmaco-Biology, University of Bari, Via Orabona 4, 70125 Bari, Italy. fpalm@farmbiol.uniba.it
The Plant Journal : for Cell and Molecular Biology
|March 30, 2011
Summary
Mitochondrial carriers (MC) are vital inner membrane transporters. This study predicts functions for uncharacterized plant MCs using conserved amino acid triplets and evolutionary analysis.
Area of Science:
- Plant molecular biology
- Biochemistry
- Evolutionary biology
Background:
- Mitochondrial carriers (MC) are a large family of inner membrane transporters.
- In Arabidopsis thaliana, 58 genes encode these proteins, with plant genomes showing significant variation (37-125 genes).
- MCs exhibit diverse substrate specificities, gene expression patterns, and localization.
Purpose of the Study:
- To predict the functions of uncharacterized mitochondrial carriers in Brachypodium distachyon and Ostreococcus lucimarinus.
- To analyze the evolutionary relationships within the plant mitochondrial carrier family (MCF).
- To validate the predictive power of conserved amino acid triplets for MC function.
Main Methods:
- Comparative genomics of MCF across Arabidopsis thaliana, Saccharomyces cerevisiae, Homo sapiens, Brachypodium distachyon, and Ostreococcus lucimarinus.
- Analysis of conserved symmetry-related amino acid triplets within MCF protein sequences.
- Validation of triplet predictions against experimentally determined data for Arabidopsis MCs.
- Application of predictive models to uncharacterized MCs.
Main Results:
- Conserved amino acid triplets show predictive power for MC substrate specificity.
- Functional predictions were made for uncharacterized MCs in Brachypodium distachyon and Ostreococcus lucimarinus.
- Comparative analysis revealed evolutionary trends in the plant MCF.
- Plant MCF size varies significantly, exceeding yeast but comparable to human.
Conclusions:
- Conserved amino acid triplets are valuable tools for predicting mitochondrial carrier functions.
- Evolutionary comparisons provide insights into the diversification of the MCF.
- Further global gene expression analysis and in vivo studies are crucial for understanding MC relevance.
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