8OKR

virus enhancing amyloid fibril formed by CKFKFQF


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.86 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cryo-EM structure and polymorphic maturation of a viral transduction enhancing amyloid fibril.

Heerde, T.Schutz, D.Lin, Y.J.Munch, J.Schmidt, M.Fandrich, M.

(2023) Nat Commun 14: 4293-4293

  • DOI: https://doi.org/10.1038/s41467-023-40042-1
  • Primary Citation of Related Structures:  
    8OKR

  • PubMed Abstract: 

    Amyloid fibrils have emerged as innovative tools to enhance the transduction efficiency of retroviral vectors in gene therapy strategies. In this study, we used cryo-electron microscopy to analyze the structure of a biotechnologically engineered peptide fibril that enhances retroviral infectivity. Our findings show that the peptide undergoes a time-dependent morphological maturation into polymorphic amyloid fibril structures. The fibrils consist of mated cross-β sheets that interact by the hydrophobic residues of the amphipathic fibril-forming peptide. The now available structural data help to explain the mechanism of retroviral infectivity enhancement, provide insights into the molecular plasticity of amyloid structures and illuminate the thermodynamic basis of their morphological maturation.


  • Organizational Affiliation

    Institute of Protein Biochemistry, Ulm University, 89081, Ulm, Germany. thomas.heerde@uni-ulm.de.


Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PNF-187HIV whole-genome vector AA1305#18Mutation(s): 0 
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.86 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.16-3549
RECONSTRUCTIONRELION3.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyCRC 1279/2 project A03

Revision History  (Full details and data files)

  • Version 1.0: 2023-08-02
    Type: Initial release
  • Version 1.1: 2024-07-24
    Changes: Data collection