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. 2023 Jun 15;30(7):958–969. doi: 10.1038/s41594-023-01014-7

Extended Data Fig. 8. Mutations within the SAH regions, or within the BAR-TIP regions in ESCPE-1 affect cargo binding and interfere with membrane association.

Extended Data Fig. 8

(a) Summary of Kds between the CI-MPR bipartite sorting motif (amino acids 2347-2375) titrated into the SNX1-SAH3A:SNX5-SAH3A mutant or the SNX1- BT*:SNX5- BT* mutant. Values are the mean and standard deviation (SD) from two independent experiments. (b) Representative ITC experiments for the binding of the previous SAH3A and BT* mutants. Top panels show the raw data and bottom panels represent the integrated and normalized data fit with a 1:1 binding model. (c) Circular dichroism (CD) spectra of SNX1WT-SNX5WT, the SNX1-SAH3A:SNX5-SAH3A mutant, and the SNX1- BT*:SNX5- BT* mutant. (d) Liposome flotation assay of SNX1WT-SNX5WT, the SNX1-SAH3A:SNX5-SAH3A mutant, and the SNX1-BT*:SNX5-BT* mutant. The liposome composition was: DOPC/DOPE/DOPS/PtdIns(3)P/Liss Rhod-PE 45:28:20:5:2 molar ratio. Data are representative of two (a-c), or three (d) independent experiments.