3OOB image
Entry Detail
PDB ID:
3OOB
Keywords:
Title:
Structural and functional insights of directly targeting Pin1 by Epigallocatechin-3-gallate
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2010-08-30
Release Date:
2011-08-17
Method Details:
Experimental Method:
Resolution:
1.89 Å
R-Value Free:
0.23
R-Value Work:
0.18
R-Value Observed:
0.19
Space Group:
P 31 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1
Mutations:R14A
Chain IDs:A
Chain Length:163
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Epigallocatechin-gallate suppresses tumorigenesis by directly targeting Pin1.
Cancer Prev Res (Phila) 4 1366 1377 (2011)
PMID: 21750208 DOI: 10.1158/1940-6207.CAPR-11-0301

Abstact

The most active anticancer component in green tea is epigallocatechin-3-gallate (EGCG). The human peptidyl prolyl cis/trans isomerase (Pin1) plays a critical role in oncogenic signaling. Herein, we report the X-ray crystal structure of the Pin1/EGCG complex resolved at 1.9 Å resolution. Notably, the structure revealed the presence of EGCG in both the WW and PPIase domains of Pin1. The direct binding of EGCG with Pin1 was confirmed and the interaction inhibited Pin1 PPIase activity. In addition, proliferation of cells expressing Pin1 was inhibited and tumor growth in a xenograft mouse model was suppressed. The binding of EGCG with Arg17 in the WW domain prevented the binding of c-Jun, a well-known Pin1 substrate. EGCG treatment corresponded with a decreased abundance of cyclin D1 and diminution of 12-O-tetradecanoylphorbol-l3-acetate-induced AP-1 or NF-κB promoter activity in cells expressing Pin1. Overall, these results showed that EGCG directly suppresses the tumor-promoting effect of Pin1.

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