SGD Paper 
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Zick M, et al. (2009) Distinct roles of the two isoforms of the dynamin-like GTPase Mgm1 in mitochondrial fusion. FEBS Lett 583(13):2237-43
Abstract: The mitochondrial dynamin-like GTPase Mgm1 exists as a long (l-Mgm1) and a short isoform (s-Mgm1). They both are essential for mitochondrial fusion. Here we show that the isoforms interact in a homotypic and heterotypic manner. Their submitochondrial distribution between inner boundary membrane and cristae was markedly different. Overexpression of l-Mgm1 exerts a dominant negative effect on mitochondrial fusion. A functional GTPase domain is required only in s-Mgm1 but not in l-Mgm1. We propose that l-Mgm1 acts primarily as an anchor in the inner membrane that in concert with the GTPase activity of s-Mgm1 mediates the fusion of inner membranes.
| Status: Published | Type: Journal Article | Research Support, Non-U.S. Gov't | PubMed ID: 19505460 |
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| Topics | Genes linked to topics |
|---|---|
| MGM1 | |
| Cellular Location |  |
| Function/Process | |
| Mutants/Phenotypes | |
| Primary Literature | |
| Protein Processing/Modification/Regulation | |
| Protein-protein Interactions | |
| Strains/Constructs | |
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