Sterol-regulated transport of SREBPs from endoplasmic reticulum to Golgi: Insig renders sorting signal in Scap inaccessible
to COPII proteins
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Fig. 6.
Differential mechanisms by which cholesterol and oxysterols trigger Insig binding to Scap, which in turn abrogates COPII binding
to the MELADL sorting signal in Scap, inhibiting the ER-to-Golgi transport of SREBPs.