1BMZ

HUMAN TRANSTHYRETIN (PREALBUMIN)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Inhibiting transthyretin conformational changes that lead to amyloid fibril formation.

Peterson, S.A.Klabunde, T.Lashuel, H.A.Purkey, H.Sacchettini, J.C.Kelly, J.W.

(1998) Proc Natl Acad Sci U S A 95: 12956-12960

  • DOI: 10.1073/pnas.95.22.12956
  • Primary Citation of Related Structures:  
    1BM7, 1BMZ

  • PubMed Abstract: 
  • Insoluble protein fibrils resulting from the self-assembly of a conformational intermediate are implicated as the causative agent in several severe human amyloid diseases, including Alzheimer's disease, familial amyloid polyneuropathy, and senile sys ...

    Insoluble protein fibrils resulting from the self-assembly of a conformational intermediate are implicated as the causative agent in several severe human amyloid diseases, including Alzheimer's disease, familial amyloid polyneuropathy, and senile systemic amyloidosis. The latter two diseases are associated with transthyretin (TTR) amyloid fibrils, which appear to form in the acidic partial denaturing environment of the lysosome. Here we demonstrate that flufenamic acid (Flu) inhibits the conformational changes of TTR associated with amyloid fibril formation. The crystal structure of TTR complexed with Flu demonstrates that Flu mediates intersubunit hydrophobic interactions and intersubunit hydrogen bonds that stabilize the normal tetrameric fold of TTR. A small-molecule inhibitor that stabilizes the normal conformation of a protein is desirable as a possible approach to treat amyloid diseases. Molecules such as Flu also provide the means to rigorously test the amyloid hypothesis, i.e., the apparent causative role of amyloid fibrils in amyloid disease.


    Organizational Affiliation

    Department of Chemistry and Skaggs Institute of Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road MB 12, La Jolla, CA 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (TRANSTHYRETIN)AB127Homo sapiensMutation(s): 0 
Gene Names: TTRPALB
Find proteins for P02766 (Homo sapiens)
Explore P02766 
Go to UniProtKB:  P02766
NIH Common Fund Data Resources
PHAROS  P02766
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.183 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.85α = 90
b = 85.8β = 90
c = 64.8γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-08-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance