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Biochemistry, Biophysics, and Structural Biology Commons

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Open Dartmouth: Faculty Open Access Scholarship

Microscopy

1997

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Full-Text Articles in Biochemistry, Biophysics, and Structural Biology

Docking Of Yeast Vacuoles Is Catalyzed By The Ras-Like Gtpase Ypt7p After Symmetric Priming By Sec18p (Nsf), Andreas Mayer, William Wickner Jan 1997

Docking Of Yeast Vacuoles Is Catalyzed By The Ras-Like Gtpase Ypt7p After Symmetric Priming By Sec18p (Nsf), Andreas Mayer, William Wickner

Open Dartmouth: Faculty Open Access Scholarship

Vacuole inheritance in yeast involves the for- mation of tubular and vesicular “segregation struc- tures” which migrate into the bud and fuse there to es- tablish the daughter cell vacuole. Vacuole fusion has been reconstituted in vitro and may be used as a model for an NSF-dependent reaction of priming, docking, and fusion. We have developed biochemical and micro- scopic assays for the docking step of in vitro vacuole fusion and characterized its requirements. The vacu- oles must be primed for docking by the action of Sec17p ( a -SNAP) and Sec18p (NSF). Priming is neces- sary for both fusion partners ...