https://www.stevenboivie.com/2016/01/19/alternatively-cargo-may-move-from-the-tgn-into-recycling-endosomes-the-place-ap-1b-can-bind-its-cargo-for-basolateral-shipping-and-delivery-17-we-sought-to-take-a-look-at-whether-syntaxin-4-sortin/