The plant mitochondrial proteome

authored by

A. Harvey Millar, Joshua L. Heazlewood, Brian K. Kristensen, Hans Peter Braun, Ian M. Møller

Abstract

The plant mitochondrial proteome might contain as many as 2000-3000 different gene products, each of which might undergo post-translational modification. Recent studies using analytical methods, such as one-, two- and three-dimensional gel electrophoresis and one- and two-dimensional liquid chromatography linked on-line with tandem mass spectrometry, have identified >400 mitochondrial proteins, including subunits of mitochondrial respiratory complexes, supercomplexes, phosphorylated proteins and oxidized proteins. The results also highlight a range of new mitochondrial proteins, new mitochondrial functions and possible new mechanisms for regulating mitochondrial metabolism. More than 70 identified proteins in Arabidopsis mitochondrial samples lack similarity to any protein of known function. In some cases, unknown proteins were found to form part of protein complexes, which allows a functional context to be defined for them. There are indications that some of these proteins add novel activities to mitochondrial protein complexes in plants.

Organisation(s)

Institute of Plant Genetics

External Organisation(s)

University of Western Australia
Technical University of Denmark

Type

Review article

Journal

Trends in plant science

Volume

10

Pages

36-43

No. of pages

8

ISSN

1360-1385

Publication date

19.12.2004

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Plant Science

Electronic version(s)

https://doi.org/10.1016/j.tplants.2004.12.002 (Access: Unknown)