6MST

Cryo-EM structure of human AA amyloid fibril


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.70 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cryo-EM fibril structures from systemic AA amyloidosis reveal the species complementarity of pathological amyloids.

Liberta, F.Loerch, S.Rennegarbe, M.Schierhorn, A.Westermark, P.Westermark, G.T.Hazenberg, B.P.C.Grigorieff, N.Fandrich, M.Schmidt, M.

(2019) Nat Commun 10: 1104-1104

  • DOI: 10.1038/s41467-019-09033-z
  • Primary Citation of Related Structures:  
    6DSO, 6MST

  • PubMed Abstract: 
  • Systemic AA amyloidosis is a worldwide occurring protein misfolding disease of humans and animals. It arises from the formation of amyloid fibrils from the acute phase protein serum amyloid A. Here, we report the purification and electron cryo-micros ...

    Systemic AA amyloidosis is a worldwide occurring protein misfolding disease of humans and animals. It arises from the formation of amyloid fibrils from the acute phase protein serum amyloid A. Here, we report the purification and electron cryo-microscopy analysis of amyloid fibrils from a mouse and a human patient with systemic AA amyloidosis. The obtained resolutions are 3.0 Å and 2.7 Å for the murine and human fibril, respectively. The two fibrils differ in fundamental properties, such as presence of right-hand or left-hand twisted cross-β sheets and overall fold of the fibril proteins. Yet, both proteins adopt highly similar β-arch conformations within the N-terminal ~21 residues. Our data demonstrate the importance of the fibril protein N-terminus for the stability of the analyzed amyloid fibril morphologies and suggest strategies of combating this disease by interfering with specific fibril polymorphs.


    Organizational Affiliation

    Institute of Protein Biochemistry, Ulm University, 89081, Ulm, Germany. matthias.schmidt@uni-ulm.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serum amyloid A-1 proteinABCDEFGHIJKL66Homo sapiensMutation(s): 0 
Gene Names: SAA1
Find proteins for P0DJI8 (Homo sapiens)
Explore P0DJI8 
Go to UniProtKB:  P0DJI8
NIH Common Fund Data Resources
PHAROS  P0DJI8
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.70 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyDFG FA 456/15-1
German Research Foundation (DFG)GermanyDFG SCHM 3276/1

Revision History 

  • Version 1.0: 2019-03-13
    Type: Initial release
  • Version 1.1: 2019-07-17
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-11
    Changes: Author supporting evidence