Abstract：
:Studies on vesicle formation by the Coat Protein I (COPI) complex have contributed to a basic understanding of how vesicular transport is initiated. Phosphatidic acid (PA) and diacylglycerol (DAG) have been found previously to be required for the fission stage of COPI vesicle formation. Here, we find that PA with varying lipid geometry can all promote early fission, but only PA with shortened acyl chains promotes late fission. Moreover, diacylglycerol (DAG) acts after PA in late fission, with this role of DAG also requiring shorter acyl chains. Further highlighting the importance of the short-chain lipid geometry for late fission, we find that shorter forms of PA and DAG promote the vesiculation ability of COPI fission factors. These findings advance a general understanding of how lipid geometry contributes to membrane deformation for vesicle fission, and also how proteins and lipids coordinate their actions in driving this process.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Park SY,Yang JS,Li Z,Deng P,Zhu X,Young D,Ericsson M,Andringa RLH,Minnaard AJ,Zhu C,Sun F,Moody DB,Morris AJ,Fan J,Hsu VWdoi
10.1038/s41467-019-11324-4subject
Has Abstractpub_date
2019-07-30 00:00:00pages
3409issue
1issn
2041-1723pii
10.1038/s41467-019-11324-4journal_volume
10pub_type
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