Journal
PHYSIOLOGIA PLANTARUM
Volume 123, Issue 4, Pages 399-405Publisher
WILEY
DOI: 10.1111/j.1399-3054.2004.00439.x
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Lon-, Clp- and FtsH-like proteases, members of three families of ATP-dependent proteases derived from bacterial ancestors, have been identified in plant mitochondria. Classifications of mitochondrial-specific paralogues of plant ATP-dependent proteases, based on targeting prediction programs and different experimental methods, are compared. Accumulating evidence points to similarities in the structure and the mechanisms of action used by various ATP-dependent proteases. Therefore, before focusing on plant mitochondrial ATP-dependent proteases, the paper discusses general features of ATP-dependent proteases. To date, information about structure and function of plant mitochondrial Lon-like, Clp-like and FtsH-like proteases is rather scarce, but indicates that these enzymes, like their bacterial and eukaryotic homologues, combine proteolytic and chaperone-like activities to form mitochondrial protein quantity and quality control system in plants.
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