The structural basis of DKK-mediated inhibition of Wnt/LRP signaling.
The structural basis of DKK-mediated inhibition of Wnt/LRP signaling.
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DOI:
10.1126/scisignal.2003028
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发表时间:
2012-05-15
影响因子:
7.3
通讯作者:
Wu D
中科院分区:
文献类型:
--
作者:
Bao J;Zheng JJ;Wu D
Low-density lipoprotein receptor–related proteins 5 and 6 (LRP5/6) mediate canonical Wnt–β-catenin signaling by forming a complex with the co-receptor Frizzled, which binds to Wnt proteins. Dickkopf (DKK)–related proteins inhibit the Wnt signaling pathway by directly binding to the ectodomains of LRP5/6. However, the mechanism for DKK-mediated antagonism has not been fully understood as of yet. Crystal structures of the LRP6 ectodomain in complex with DKK1, along with mutagenesis studies, provide considerable insights into the molecular basis for DKK-mediated inhibition and Wnt signaling through LRP5/6.
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