7VIP

Crystal structure of Au(10EQ)-apo-R168H/L169C-rHLFr


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.181 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Design of a gold clustering site in an engineered apo-ferritin cage.

Lu, C.Maity, B.Peng, X.Ito, N.Abe, S.Sheng, X.Ueno, T.Lu, D.

(2022) Commun Chem 5: 39-39

  • DOI: https://doi.org/10.1038/s42004-022-00651-1
  • Primary Citation of Related Structures:  
    7VIO, 7VIP, 7VIQ, 7VIR, 7VIS, 7VIT, 7VIU

  • PubMed Abstract: 

    Water-soluble and biocompatible protein-protected gold nanoclusters (Au NCs) hold great promise for numerous applications. However, design and precise regulation of their structure at an atomic level remain challenging. Herein, we have engineered and constructed a gold clustering site at the 4-fold symmetric axis channel of the apo-ferritin cage. Using a series of X-ray crystal structures, we evaluated the stepwise accumulation process of Au ions into the cage and the formation of a multinuclear Au cluster in our designed cavity. We also disclosed the role of key residues in the metal accumulation process. X-ray crystal structures in combination with quantum chemical (QC) calculation revealed a unique Au clustering site with up to 12 Au atoms positions in the cavity. Moreover, the structure of the gold nanocluster was precisely tuned by the dosage of the Au precursor. As the gold concentration increases, the number of Au atoms position at the clustering site increases from 8 to 12, and a structural rearrangement was observed at a higher Au concentration. Furthermore, the binding affinity order of the four Au binding sites on apo-ferritin was unveiled with a stepwise increase of Au precursor concentration.


  • Organizational Affiliation

    Department of Chemical Engineering, Tsinghua University, Beijing, 100-084, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ferritin light chain174Equus caballusMutation(s): 2 
Gene Names: FTL
UniProt
Find proteins for P02791 (Equus caballus)
Explore P02791 
Go to UniProtKB:  P02791
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02791
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
AU (Subject of Investigation/LOI)
Query on AU

Download Ideal Coordinates CCD File 
F [auth A],
H [auth A]
GOLD ION
Au
ZBKIUFWVEIBQRT-UHFFFAOYSA-N
CD
Query on CD

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
G [auth A]
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
I [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.181 
  • Space Group: F 4 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 182.126α = 90
b = 182.126β = 90
c = 182.126γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
CrysalisProdata reduction
Cootmodel building
MOLREPphasing
Aimlessdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China21878175

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-08
    Type: Initial release
  • Version 1.1: 2023-02-08
    Changes: Database references, Derived calculations
  • Version 1.2: 2023-11-29
    Changes: Data collection, Refinement description