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Systematic name YBR179C
Gene name FZO1
Feature type ORF, Verified
Coordinates Chr II:589114..586547
Primary SGDID S000000383

Description of YBR179C: Mitofusin; integral membrane protein involved in mitochondrial outer membrane tethering and fusion; role in mitochondrial genome maintenance; efficient tethering and degradation of Fzo1p requires an intact N-terminal GTPase domain; targeted for destruction by the ubiquitin ligase SCF-Mdm30p and the cytosolic ubiquitin-proteasome system[1][2][3][4][5][6]


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  1. Anton F, et al. (2011) Ugo1 and Mdm30 act sequentially during Fzo1-mediated mitochondrial outer membrane fusion. J Cell Sci 124(Pt 7):1126-35 SGD PMID 21385840
  2. Cohen MM, et al. (2008) Ubiquitin-Proteasome-dependent Degradation of a Mitofusin, a Critical Regulator of Mitochondrial Fusion. Mol Biol Cell 19(6):2457-64 SGD PMID 18353967
  3. Cohen MM, et al. (2011) Sequential requirements for the GTPase domain of the mitofusin Fzo1 and the ubiquitin ligase SCFMdm30 in mitochondrial outer membrane fusion. J Cell Sci 124(Pt 9):1403-10 SGD PMID 21502136
  4. Escobar-Henriques M, et al. (2006) Regulation of mitochondrial fusion by the F-box protein Mdm30 involves proteasome-independent turnover of Fzo1. J Cell Biol 173(5):645-50 SGD PMID 16735578
  5. Hermann GJ, et al. (1998) Mitochondrial fusion in yeast requires the transmembrane GTPase Fzo1p. J Cell Biol 143(2):359-73 SGD PMID 9786948
  6. Rapaport D, et al. (1998) Fzo1p is a mitochondrial outer membrane protein essential for the biogenesis of functional mitochondria in Saccharomyces cerevisiae. J Biol Chem 273(32):20150-5 SGD PMID 9685359

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