SGD Paper 
Tahotna D, et al. (2007) Phosphatidylcholine transfer activity of yeast Sec14p is not essential for its function in vivo. Biochim Biophys Acta 1771(1):83-92
Abstract: Yeast phosphatidylinositol (PI)/phosphatidylcholine (PC) transfer protein, Sec14p, is essential for protein transport from the Golgi apparatus and for the cell viability. It is instrumental in maintaining the lipid composition of the Golgi membranes to be compatible with vesicle biogenesis and the secretory process by coordination of PC and PI metabolism. To address the question to which extent PC transfer ability of Sec14p is required for its essential in vivo function we generated a Sec14p mutant unable to transfer PC between membranes in the in vitro assay. Yeast cells with this modified Sec14p(D115G) as a sole Sec14p were viable with improved secretory activity compared to sec14 deficient strain. Thus, in vitro PC transfer ability of Sec14p is not required for its essential function(s) in living cells, however, yeast cells having PC transfer deficient Sec14p(D115G) as a sole Sec14p display regulatory abnormalities, including increased phospholipase D mediated PC turnover.
| Status: Published | Type: Journal Article | PubMed ID: 17174597 |
Topics addressed in this paper
Number of different genes curated to this paper: 3
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