Dickkopf-related protein 2 is a protein that in humans is encoded by the DKK2gene.[1][2]
This gene encodes a protein that is a member of the dickkopf family. The secreted protein contains two cysteine rich regions and is involved in embryonic development through its interactions with the Wnt signaling pathway. It can act as either an agonist or antagonist of Wnt/beta-catenin signaling, depending on the cellular context and the presence of the co-factor kremen 2. Activity of this protein is also modulated by binding to the Wnt co-receptor LDL-receptor related protein 6 (LRP6).[2]
References
↑Krupnik VE, Sharp JD, Jiang C, Robison K, Chickering TW, Amaravadi L, Brown DE, Guyot D, Mays G, Leiby K, Chang B, Duong T, Goodearl AD, Gearing DP, Sokol SY, McCarthy SA (Dec 1999). "Functional and structural diversity of the human Dickkopf gene family". Gene. 238 (2): 301–13. doi:10.1016/S0378-1119(99)00365-0. PMID10570958.
Wu W, Glinka A, Delius H, Niehrs C (2001). "Mutual antagonism between dickkopf1 and dickkopf2 regulates Wnt/beta-catenin signalling". Curr. Biol. 10 (24): 1611–4. doi:10.1016/S0960-9822(00)00868-X. PMID11137016.
Mao B, Wu W, Li Y, et al. (2001). "LDL-receptor-related protein 6 is a receptor for Dickkopf proteins". Nature. 411 (6835): 321–5. doi:10.1038/35077108. PMID11357136.
Li L, Mao J, Sun L, et al. (2002). "Second cysteine-rich domain of Dickkopf-2 activates canonical Wnt signaling pathway via LRP-6 independently of dishevelled". J. Biol. Chem. 277 (8): 5977–81. doi:10.1074/jbc.M111131200. PMID11742004.