Document Type

Article

Publication Date

5-27-2003

Publication Title

Proceedings of the National Academy of Sciences of the United States of America

Department

Geisel School of Medicine

Abstract

YOR068c, termed VAM10 (altered vacuole morphology), lies within the VPS5 gene on the opposite DNA strand. VAM10 deletion causes vacuole fragmentation in vivo. The in vitro fusion of purified yeast vacuoles is stimulated by recombinant Vam10p and blocked by antibody to Vam10p. Vam10p acts early in the priming stage of fusion, independent of Sec18p. After priming, recombinant Vam10p will not stimulate fusion and anti-Vam10p antibodies will not inhibit; Vam10p provides a functional marker for this Sec18p-independent priming step. Pure Vam10p restores normal, Ypt7p-dependent tethering to vacuoles from a vam10Δ strain.

DOI

10.1073/pnas.1132162100

Original Citation

Kato M, Wickner W. Vam10p defines a Sec18p-independent step of priming that allows yeast vacuole tethering. Proc Natl Acad Sci U S A. 2003 May 27;100(11):6398-403. doi: 10.1073/pnas.1132162100. Epub 2003 May 14. PMID: 12748377; PMCID: PMC164458.

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