2FFX

Structure of Human Ferritin L. Chain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of human ferritin L chain

Wang, Z.M.Li, C.Ellenburg, M.P.Soistman, E.M.Ruble, J.R.Wright, B.S.Ho, J.X.Carter, D.C.

(2006) ACTA CRYSTALLOGR.,SECT.D 62: 800-806

  • DOI: 10.1107/S0907444906018294
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Ferritin is the major iron-storage protein present in all cells. It generally contains 24 subunits, with different ratios of heavy chain (H) to light chain (L), in the shape of a hollow sphere hosting up to 4500 ferric Fe atoms inside. H-rich ferriti ...

    Ferritin is the major iron-storage protein present in all cells. It generally contains 24 subunits, with different ratios of heavy chain (H) to light chain (L), in the shape of a hollow sphere hosting up to 4500 ferric Fe atoms inside. H-rich ferritins catalyse the oxidation of iron(II), while L-rich ferritins promote the nucleation and storage of iron(III). Several X-ray structures have been determined, including those of L-chain ferritins from horse spleen (HoSF), recombinant L-chain ferritins from horse (HoLF), mouse (MoLF) and bullfrog (BfLF) as well as recombinant human H-chain ferritin (HuHF). Here, structures have been determined of two crystal forms of recombinant human L-chain ferritin (HuLF) obtained from native and perdeuterated proteins. The structures show a cluster of acidic residues at the ferrihydrite nucleation site and at the iron channel along the threefold axis. An ordered Cd2+ structure is observed within the iron channel, offering further insight into the route and mechanism of iron transport into the capsid. The loop between helices D and E, which is disordered in many other L-chain structures, is clearly visible in these two structures. The crystals generated from perdeuterated HuLF will be used for neutron diffraction studies.


    Organizational Affiliation

    New Century Pharmaceuticals Inc., 895 Martin Road, Huntsville, Alabama 35824, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ferritin light chain
J
173Homo sapiensMutation(s): 0 
Gene Names: FTL
Find proteins for P02792 (Homo sapiens)
Go to Gene View: FTL
Go to UniProtKB:  P02792
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
J
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CD
Query on CD

Download SDF File 
Download CCD File 
J
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.210 
  • Space Group: I 4 3 2
Unit Cell:
Length (Å)Angle (°)
a = 151.601α = 90.00
b = 151.601β = 90.00
c = 151.601γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
HKL-2000data collection
SCALEPACKdata scaling
HKL-2000data reduction
CNXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-07-11
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model