A post-lysosomal cholesterol transport inhibitor reveals how the endoplasmic reticulum membrane regulates total cellular cholesterol by constantly monitoring a critical pool of cholesterol in the plasma membrane.
GRAMD1 proteins sense a transient expansion of the accessible pool of plasma membrane cholesterol and facilitate its transport to the endoplasmic reticulum at ER-PM contact sites.
Joseph A Giovinazzo, Russell P Thomson ... Ryan Schreiner
Cytotoxicity associated with APOL1 renal-risk variants occurs through its plasma-membrane localization, where aberrant channel activity drives a sustained sodium and calcium influx leading to cell swelling and eventually cell death.
Biochemical and instrumental analysis showed that the membrane-induced exposure of myristoyl from the MA protein of Mason-Pfizer monkey virus triggers allosteric conformational changes resulting in MA oligomerization and unfolding of the cleavage site between MA and downstream domains of Gag.
Alexis Lebecq, Mehdi Doumane ... Marie-Cécile Caillaud
SAC9 prevents the accumulation of PI(4,5)P2 in intracellular compartments, thereby contributing to clathrin-mediated endocytosis at the plasma membrane and regulating the cortical localization of its protein partner SH3P2.
Christoph A Bücherl, Iris K Jarsch ... Cyril Zipfel
Although genetically and biochemically linked, the plant immune and growth receptors FLS2 and BRI1 form dispersed receptor clusters within the plasma membrane that are spatiotemporally separated.
A newly established reversible model of membrane departitioning and repartitioning in bacteria uncovers the role of a cell wall synthase in regulating membrane partitioning.