1BIY

STRUCTURE OF DIFERRIC BUFFALO LACTOFERRIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.37 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of buffalo lactoferrin at 3.3 A resolution at 277 K.

Karthikeyan, S.Yadav, S.Paramasivam, M.Srinivasan, A.Singh, T.P.

(2000) Acta Crystallogr.,Sect.D 56: 684-689


  • PubMed Abstract: 
  • The three-dimensional structure of diferric buffalo lactoferrin has been determined at 3.3 A resolution. The structure was solved by molecular replacement using the coordinates of diferric human lactoferrin as a search model and was refined by simula ...

    The three-dimensional structure of diferric buffalo lactoferrin has been determined at 3.3 A resolution. The structure was solved by molecular replacement using the coordinates of diferric human lactoferrin as a search model and was refined by simulated annealing (X-PLOR). The final model comprises 5316 protein atoms for all 689 residues, two Fe(3+) and two CO(3)(2-) ions. The final R factor was 21.8% for 11 711 reflections in the resolution range 17.0-3.3 A. The folding of buffalo lactoferrin is essentially similar to that of the other members of the transferrin family. The significant differences are found in the dimensions of the binding cleft and the interlobe orientation. The interlobe interactions are predominantly hydrophobic in nature, thus facilitating the sliding of two lobes owing to external forces. The interdomain interactions are comparable in the N and C lobes.


    Related Citations: 
    • Three-Dimensional Structure of Diferric Bovine Lactoferrin at 2.8 A Resolution
      Moore, S.A.,Anderson, B.F.,Groom, C.R.,Haridas, M.,Baker, E.N.
      (1997) J.Mol.Biol. 274: 222
    • Purification, Crystallization, and X-Ray Diffraction Studies of Lactotransferrin from Buffalo Colostrum
      Raman, A.,Bhatia, K.L.,Singh, T.P.,Srinivasan, A.,Betzel, C.,Malik, R.C.
      (1992) Arch.Biochem.Biophys. 294: 319


    Organizational Affiliation

    Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LACTOFERRIN
A
689Bubalus bubalisGene Names: LTF
EC: 3.4.21.-
Find proteins for O77698 (Bubalus bubalis)
Go to Gene View: LTF
Go to UniProtKB:  O77698
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: 3.37 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 56.797α = 90.00
b = 101.436β = 104.88
c = 76.275γ = 90.00
Software Package:
Software NamePurpose
MARSCALEdata reduction
X-PLORrefinement
MARSCALEdata scaling
MARXDSdata collection
AMoREphasing
MARXDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-13
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance