WIPI2B links PtdIns3P to LC3 lipidation through binding ATG16L1
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WIPI proteins, phosphatidylinositol 3-phosphate (PtdIns3P) binding proteins with β-propeller folds, are recruited to the omegasome following PtdIns3P production. The functions of the WIPI proteins in autophagosome formation are poorly understood. In a recent study, we reported that WIPI2B directly binds ATG16L1 and functions by recruiting the ATG12-ATG5-ATG16L1 complex to forming autophagosomes during starvation- or pathogen-induced autophagy. Our model of WIPI2 function provides an explanation for the PtdIns3P-dependent recruitment of the ATG12-ATG5-ATG16L1 complex during initiation of autophagy.
Journal details
Journal Autophagy
Volume 11
Issue number 1
Pages 190-191
Available online
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Publisher website (DOI) 10.1080/15548627.2014.996029
Europe PubMed Central 25629784
Pubmed 25629784
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