4DYZ

Crystal Structure of the apo form of Human H-Ferritin variant MIC1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Re-engineering protein interfaces yields copper-inducible ferritin cage assembly.

Huard, D.J.Kane, K.M.Tezcan, F.A.

(2013) Nat.Chem.Biol. 9: 169-176

  • DOI: 10.1038/nchembio.1163
  • Primary Citation of Related Structures:  4DYX, 4DYY, 4DZ0

  • PubMed Abstract: 
  • The ability to chemically control protein-protein interactions would allow the interrogation of dynamic cellular processes and lead to a better understanding and exploitation of self-assembling protein architectures. Here we introduce a new engineeri ...

    The ability to chemically control protein-protein interactions would allow the interrogation of dynamic cellular processes and lead to a better understanding and exploitation of self-assembling protein architectures. Here we introduce a new engineering strategy--reverse metal-templated interface redesign (rMeTIR)--that transforms a natural protein-protein interface into one that only engages in selective response to a metal ion. We have applied rMeTIR to render the self-assembly of the cage-like protein ferritin controllable by divalent copper binding, which has allowed the study of the structure and stability of the isolated ferritin monomer, the demonstration of the primary role of conserved hydrogen-bonding interactions in providing geometric specificity for cage assembly and the uniform chemical modification of the cage interior under physiological conditions. Notably, copper acts as a structural template for ferritin assembly in a manner that is highly reminiscent of RNA sequences that template virus capsid formation.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ferritin heavy chain
A
172Homo sapiensGene Names: FTH1 (FTH, FTHL6)
EC: 1.16.3.1
Find proteins for P02794 (Homo sapiens)
Go to Gene View: FTH1
Go to UniProtKB:  P02794
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

Download SDF File 
Download CCD File 
A
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.219 
  • Space Group: F 4 3 2
Unit Cell:
Length (Å)Angle (°)
a = 181.066α = 90.00
b = 181.066β = 90.00
c = 181.066γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
REFMACrefinement
Blu-Icedata collection
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-23
    Type: Initial release
  • Version 1.1: 2013-02-13
    Type: Database references
  • Version 1.2: 2013-03-06
    Type: Database references