9FNA | pdb_00009fna

CryoEM structure of Encapsulin::tdNfsB with an open pore state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.22 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

A nanoengineered tandem nitroreductase: designing a robust prodrug-activating nanoreactor.

Zmyslia, M.Capper, M.J.Grimmeisen, M.Sartory, K.Deuringer, B.Abdelsalam, M.Shen, K.Jung, M.Sippl, W.Koch, H.G.Kaul, L.Suss, R.Kohnke, J.Jessen-Trefzer, C.

(2024) RSC Chem Biol 6: 21-35

  • DOI: https://doi.org/10.1039/d4cb00127c
  • Primary Citation of Related Structures:  
    9FN9, 9FNA

  • PubMed Abstract: 

    Nitroreductases are important enzymes for a variety of applications, including cancer therapy and bioremediation. They often require encapsulation to improve stability and activity. We focus on genetically encoded encapsulation of nitroreductases within protein capsids, like encapsulins. Our study showcases the encapsulation of nitroreductase NfsB as functional dimers within encapsulins, which enhances protein activity and stability in diverse conditions. Mutations within the pore region are beneficial for activity of the encapsulated enzyme, potentially by increasing diffusion rates. Cryogenic electron microscopy reveals the overall architecture of the encapsulated dimeric NfsB within the nanoreactor environment and identifies multiple pore states in the shell. These findings highlight the potential of encapsulins as versatile tools for enhancing enzyme performance across various fields.


  • Organizational Affiliation
    • Institute of Organic Chemistry, University of Freiburg 79104 Freiburg im Breisgau Germany claudia.jessen-trefzer@pharmazie.uni-freiburg.de.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
29 kDa antigen Cfp29275Mycolicibacterium smegmatisMutation(s): 0 
Gene Names: MSMEG_5830
UniProt
Find proteins for I6WZG6 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore I6WZG6 
Go to UniProtKB:  I6WZG6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupI6WZG6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.22 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research Council (ERC)European Union101002326

Revision History  (Full details and data files)

  • Version 1.0: 2025-03-19
    Type: Initial release