Ifqins, an amyloid forming segment from human lysozyme spanning residues 56-61

Experimental Data Snapshot

  • Resolution: 1.52 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structure-based design of functional amyloid materials.

Li, D.Jones, E.M.Sawaya, M.R.Furukawa, H.Luo, F.Ivanova, M.Sievers, S.A.Wang, W.Yaghi, O.M.Liu, C.Eisenberg, D.S.

(2014) J Am Chem Soc 136: 18044-18051

  • DOI: https://doi.org/10.1021/ja509648u
  • Primary Citation of Related Structures:  
    4R0P, 4R0U, 4R0W

  • PubMed Abstract: 

    Amyloid fibers, once exclusively associated with disease, are acquiring utility as a class of biological nanomaterials. Here we introduce a method that utilizes the atomic structures of amyloid peptides, to design materials with versatile applications. As a model application, we designed amyloid fibers capable of capturing carbon dioxide from flue gas, to address the global problem of excess anthropogenic carbon dioxide. By measuring dynamic separation of carbon dioxide from nitrogen, we show that fibers with designed amino acid sequences double the carbon dioxide binding capacity of the previously reported fiber formed by VQIVYK from Tau protein. In a second application, we designed fibers that facilitate retroviral gene transfer. By measuring lentiviral transduction, we show that designed fibers exceed the efficiency of polybrene, a commonly used enhancer of transduction. The same procedures can be adapted to the design of countless other amyloid materials with a variety of properties and uses.

  • Organizational Affiliation

    UCLA-DOE Institute, and Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States.


Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lysozyme C6Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P61626 (Homo sapiens)
Explore P61626 
Go to UniProtKB:  P61626
PHAROS:  P61626
GTEx:  ENSG00000090382 
Entity Groups  
UniProt GroupP61626
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.52 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 19.607α = 90
b = 4.839β = 90
c = 43.22γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-17
    Type: Initial release
  • Version 1.1: 2015-01-14
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references