Once fibroblast growth factor 23 (FGF23, aka phosphatonin) is glycosylated by GALNT3, it is secreted from the cell (Kato et al. 2006).
Kato, K, Jeanneau, C, Tarp, MA, Benet-Pages, A, Lorenz-Depiereux, B, Bennett, EP, Mandel, U, Strom, TM, Clausen, H
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