TRLs bind to capillaries of wild-type but not Gpihbp1–/– mice
TRLs attach to endothelial cell membrane structures, which we have named nanovilli
Endothelial cell-derived LPL does not restore defective binding in Gpihbp1–/– mice
TRLs bind to the LPL–GPIHBP1 complex in the capillary lumen