4QRF

Crystal structure of V30M mutant human transthyretin complexed with caffeic acid phenethyl ester


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Inhibitory Activities of Propolis and Its Promising Component, Caffeic Acid Phenethyl Ester, against Amyloidogenesis of Human Transthyretin

Yokoyama, T.Kosaka, Y.Mizuguchi, M.

(2014) J.Med.Chem. 57: 8928-8935

  • DOI: 10.1021/jm500997m
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Transthyretin (TTR) is a homotetrameric serum protein associated with amyloidoses such as familial amyloid polyneuropathy and senile systemic amyloidosis. The amyloid fibril formation of TTR can be inhibited through stabilization of the TTR tetramer ...

    Transthyretin (TTR) is a homotetrameric serum protein associated with amyloidoses such as familial amyloid polyneuropathy and senile systemic amyloidosis. The amyloid fibril formation of TTR can be inhibited through stabilization of the TTR tetramer by the binding of small molecules. In this study, we examined the inhibitory potency of caffeic acid phenethyl ester (CAPE) and its derivatives. Thioflavin T assay showed that CAPE suppressed the amyloid fibril formation of TTR. Comparative analysis of the inhibitory potencies revealed that phenethyl ferulate was the most potent among the CAPE derivatives. The binding of phenethyl ferulate and the selected compounds to TTR were confirmed by the 8-anilino-1-naphthalenesulfonic acid displacement and X-ray crystallography. It was also demonstrated that Bio 30, which is a CAPE-rich commercially available New Zealand propolis, inhibited TTR amyloidogenesis and stabilized the TTR tetramer. These results suggested that a propolis may be efficient for preventing TTR amyloidosis.


    Organizational Affiliation

    Faculty of Pharmaceutical Sciences, University of Toyama , 2630 Sugitani, Toyama 930-0914, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transthyretin
A, B
159Homo sapiensMutation(s): 1 
Gene Names: TTR (PALB)
Find proteins for P02766 (Homo sapiens)
Go to Gene View: TTR
Go to UniProtKB:  P02766
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
QAP
Query on QAP

Download SDF File 
Download CCD File 
A, B
2-phenylethyl (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoate
C17 H16 O4
SWUARLUWKZWEBQ-VQHVLOKHSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
QAPEC50: 8600 nM (99) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 42.831α = 90.00
b = 84.788β = 90.00
c = 64.503γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
PHENIXmodel building
HKL-2000data reduction
HKL-2000data collection
SCALEPACKdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-11-26
    Type: Initial release