Analysis of Dickkopf3 interactions with Wnt signaling receptors.
Analysis of Dickkopf3 interactions with Wnt signaling receptors.
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DOI:
10.3109/08977191003738832
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发表时间:
2010-08
期刊:
影响因子:
--
通讯作者:
Hackam AS
中科院分区:
文献类型:
--
作者:
Nakamura RE;Hackam AS
Wnt signaling regulates essential biological processes ranging from embryogenesis to neurodegeneration. Recently, we demonstrated that Dickkopf3 (Dkk3) is a pro-survival glycoprotein that positively modulates Wnt signaling. An important step in understanding the mechanism of action of Dkk3 is identifying its interacting proteins in the Wnt pathway. In this study, we used a series of biochemical and functional assays to investigate the interaction between Dkk3 and the Wnt pathway receptors Kremen1 (Krm1), Kremen 2 (Krm2) and low-density lipoprotein receptor-related protein 6 (LRP6). Here, we report that, contrary to previous studies, Dkk3 interacts with Krm1 and Krm2. However, Dkk3 did not interact with, or alter expression of, LRP6. Blocking protein glycosylation did not alter the interaction between Dkk3 and Krm proteins. Additionally, Krm2 abolished Dkk3-mediated potentiation of Wnt signaling. Therefore, our data establish that Krm proteins are novel binding partners of Dkk3 and suggest a mechanism by which Dkk3 potentiates Wnt signaling.
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影响因子:
--
作者:
Nakamura RE;Hunter DD;Yi H;Brunken WJ;Hackam AS
通讯作者:
Hackam AS
影响因子:
3.3
作者:
Kim, Kyung-Ah;Wagle, Marie;Abo, Arie
通讯作者:
Abo, Arie
影响因子:
6.4
作者:
Lee, Eun-Ju;Jo, Minwha;Lee, Je-Ho
通讯作者:
Lee, Je-Ho
DOI:
10.1073/pnas.0702136104
发表时间:
2007-05-01
影响因子:
11.1
作者:
Zhang, Qisheng;Major, Michael B.;Ding, Sheng
通讯作者:
Ding, Sheng
影响因子:
3.7
作者:
Alvarez, AR;Godoy, JA;Inestrosa, NC
通讯作者:
Inestrosa, NC