A fusion of FKBP to the N-terminus of SAC1 showed robust recruitment of the enzyme to ER-PM MCS within 1 min of rapamycin addition (see the inset graphs), and we detected a very subtle decline of PM PtdIns4 P as compared to the catalytically inactive C389S control, though this did not reach statistical significance (p=0.15, Tukey's multiple comparison test).
← all excerpts
SAC1 degrades its lipid substrate PtdIns4<i>P</i> in the endoplasmic reticulum to maintain a steep chemical gradient with donor membranes.
1
0.1500
0.1500