5GOU

Structure of a 16-mer protein nanocage fabricated from its 24-mer analogue by subunit interface redesign


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


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Literature

Conversion of the Native 24-mer Ferritin Nanocage into Its Non-Native 16-mer Analogue by Insertion of Extra Amino Acid Residues.

Zhang, S.Zang, J.Wang, W.Chen, H.Zhang, X.Wang, F.Wang, H.Zhao, G.

(2016) Angew Chem Int Ed Engl 55: 16064-16070

  • DOI: 10.1002/anie.201609517
  • Primary Citation of Related Structures:  
    5GOU

  • PubMed Abstract: 
  • Protein assemblies with high symmetry are widely distributed in nature. Most efforts so far have focused on repurposing these protein assemblies, a strategy that is ultimately limited by the structures available. To overcome this limitation, methods for fabricating novel self-assembling proteins have received intensive interest ...

    Protein assemblies with high symmetry are widely distributed in nature. Most efforts so far have focused on repurposing these protein assemblies, a strategy that is ultimately limited by the structures available. To overcome this limitation, methods for fabricating novel self-assembling proteins have received intensive interest. Herein, by reengineering the key subunit interfaces of native 24-mer protein cage with octahedral symmetry through amino acid residues insertion, we fabricated a 16-mer lenticular nanocage whose structure is unique among all known protein cages. This newly non-native protein can be used for encapsulation of bioactive compounds and exhibits high uptake efficiency by cancer cells. More importantly, the above strategy could be applied to other naturally occurring protein assemblies with high symmetry, leading to the generation of new proteins with unexplored functions.


    Organizational Affiliation

    Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Key Laboratory of Functional Dairy, Ministry of Education, Beijing, 100083, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ferritin heavy chain190Homo sapiensMutation(s): 0 
Gene Names: FTH1FTHFTHL6OK/SW-cl.84PIG15
EC: 1.16.3.1
UniProt & NIH Common Fund Data Resources
Find proteins for P02794 (Homo sapiens)
Explore P02794 
Go to UniProtKB:  P02794
PHAROS:  P02794
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.588α = 67.08
b = 95.46β = 68.29
c = 111.973γ = 70.06
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-22
    Type: Initial release