* SLC35B2 and B3 transfer PAPS from the cytosol into the Golgi apparatus from the cytoplasm.
* PAPS is a universal sulfuryl donor for sulfation.
* Depending on cancer type, the expression of PAPST1 and PAPST2 can increase or decrease, resulting in increases or decreases in sulfation of GAGs, respectively.
* Decreased expression of PAPST1 and PAPST2 caused FGF signaling to decrease in colorectal cells.