1B0L

RECOMBINANT HUMAN DIFERRIC LACTOFERRIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.274 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of recombinant human lactoferrin expressed in Aspergillus awamori.

Sun, X.L.Baker, H.M.Shewry, S.C.Jameson, G.B.Baker, E.N.

(1999) Acta Crystallogr.,Sect.D 55: 403-407


  • PubMed Abstract: 
  • Human lactoferrin (hLf) has considerable potential as a therapeutic agent. Overexpression of hLf in the fungus Aspergillus awamori has resulted in the availability of very large quantities of this protein. Here, the three-dimensional structure of the ...

    Human lactoferrin (hLf) has considerable potential as a therapeutic agent. Overexpression of hLf in the fungus Aspergillus awamori has resulted in the availability of very large quantities of this protein. Here, the three-dimensional structure of the recombinant hLf has been determined by X-ray crystallography at a resolution of 2.2 A. The final model, comprising 5339 protein atoms (residues 1-691, 294 solvent molecules, two Fe3+and two CO32- ions), gives an R factor of 0.181 (free R = 0.274) after refinement against 32231 reflections in the resolution range 10-2.2 A. Superposition of the recombinant hLf structure onto the native milk hLf structure shows a very high level of correspondence; the main-chain atoms for the entire polypeptide can be superimposed with an r.m.s. deviation of only 0.3 A and there are no significant differences in side-chain conformations or in the iron-binding sites. Dynamic properties, as measured by B-value distributions or iron-release kinetics, also agree closely. This shows that the structure of the protein is not affected by the mode of expression, the use of strain-improvement procedures or the changes in glycosylation due to the fungal system.


    Related Citations: 
    • Structure of Human Diferric Lactoferrin Refined at 2.2 A Resolution
      Haridas, M.,Anderson, B.F.,Baker, E.N.
      (1995) Acta Crystallogr.,Sect.D 51: 629


    Organizational Affiliation

    Departments of Biochemistry and Chemistry, Massey University, Palmerston North, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (LACTOFERRIN)
A
691Homo sapiensMutation(s): 1 
Gene Names: LTF (GIG12, LF)
EC: 3.4.21.-
Find proteins for P02788 (Homo sapiens)
Go to Gene View: LTF
Go to UniProtKB:  P02788
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FE
Query on FE

Download SDF File 
Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
CO3
Query on CO3

Download SDF File 
Download CCD File 
A
CARBONATE ION
C O3
BVKZGUZCCUSVTD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.274 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 156.250α = 90.00
b = 97.530β = 90.00
c = 55.870γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
ROTAVATAdata reduction
CCP4data scaling
SHELXL-97refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-18
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance