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 
  • R-Value Observed: 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 D Biol Crystallogr 56: 684-689

  • DOI: 10.1107/s0907444900005151
  • Primary Citation of Related Structures:  
    1BIY

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LACTOFERRINA689Bubalus bubalisMutation(s): 0 
Gene Names: LTF
EC: 3.4.21
Find proteins for O77698 (Bubalus bubalis)
Explore O77698 
Go to UniProtKB:  O77698
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CO3
Query on CO3

Download CCD File 
A
CARBONATE ION
C O3
BVKZGUZCCUSVTD-UHFFFAOYSA-L
 Ligand Interaction
FE
Query on FE

Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 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 
  • R-Value Observed: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.797α = 90
b = 101.436β = 104.88
c = 76.275γ = 90
Software Package:
Software NamePurpose
MARXDSdata collection
MARSCALEdata reduction
AMoREphasing
X-PLORrefinement
MARXDSdata reduction
MARSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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