6C3S

AMYLOID FORMING PEPTIDE YTIAAL FROM TRANSTHYRETIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.602 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structures of amyloidogenic segments of human transthyretin.

Saelices, L.Sievers, S.A.Sawaya, M.R.Eisenberg, D.S.

(2018) Protein Sci. 27: 1295-1303

  • DOI: 10.1002/pro.3420
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Amyloid diseases are characterized by the deposition of proteins in the form of amyloid fibrils, in organs that eventually fail. The development of effective drug candidates follows from the understanding of the molecular processes that lead to prote ...

    Amyloid diseases are characterized by the deposition of proteins in the form of amyloid fibrils, in organs that eventually fail. The development of effective drug candidates follows from the understanding of the molecular processes that lead to protein aggregation. Here we study amyloidogenic segments of transthyretin (TTR). TTR is a transporter of thyroxine and retinol in the blood and cerebrospinal fluid. When mutated and/or as a result of aging, TTR aggregates into amyloid fibrils that accumulate in organs such as the heart. Recently we reported two amyloidogenic segments that drive amyloid aggregation. Here we report the crystal structure of another six amyloidogenic segments of TTR. We found that the segments from the C-terminal region of TTR form in-register steric-zippers with highly-interdigitated, wet interfaces, whereas the β-strand B from the N-terminal region of TTR forms an out-of-register assembly, previously associated with oligomeric formation. Our results contribute fundamental information for understanding the mechanism of aggregation of TTR. This article is protected by copyright. All rights reserved.


    Organizational Affiliation

    Howard Hughes Medical Institute, UCLA-DOE Institute, Departments of Biological Chemistry and Chemistry and Biochemistry, Molecular Biology Institute, Box 951570, UCLA, Los Angeles, California 90095-1570, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TYR-THR-ILE-ALA-ALA-LEU
A
6N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.602 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.200 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 18.746α = 90.00
b = 9.578β = 90.00
c = 44.796γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
DENZOdata reduction
PHENIXrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-04-18
    Type: Initial release
  • Version 1.1: 2018-07-18
    Type: Data collection, Database references