6GHH

Thermodynamic, Crystallographic and Computational Studies of Non Mammalian Fatty Acid Binding to Bovine b-Lactoglobulin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Thermodynamic, crystallographic and computational studies of non-mammalian fatty acid binding to bovine beta-Lactoglobulin.

Rovoli, M.Thireou, T.Choiset, Y.Haertle, T.Sawyer, L.Eliopoulos, E.Kontopidis, G.

(2018) Int. J. Biol. Macromol. 118: 296-303

  • DOI: 10.1016/j.ijbiomac.2018.05.226
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The milk protein β-lactoglobulin has been widely studied since its discovery, both as a purified protein and in mixtures with other milk proteins, where its effect on the processing properties is of importance to the dairy industry. The protein can b ...

    The milk protein β-lactoglobulin has been widely studied since its discovery, both as a purified protein and in mixtures with other milk proteins, where its effect on the processing properties is of importance to the dairy industry. The protein can bind a variety of small hydrophobic molecules, which may allow its use as an oral delivery vehicle. In the present study we have examined the binding of odd-numbered fatty acids by isothermal calorimetry (ITC), X-ray crystallography and computer modelling to provide a clearer picture of the extent and variability of the central binding pocket. The Kd values for the fatty acids C13, C15, C16, C17 and C19 as determined by ITC are 1.93, 2.91, 3.05, 4.11 and 8.67 × 10 -7  M, respectively. The molecular structures revealed the ligands bound in the central cavity with generally well ordered lipophilic tails but significant positional variation at the carboxyl group end. In silico docking analyses identified the lipophilic interactions within the central cavity as the main driving force for binding with electrostatic interactions and H-bonds playing a minor role.


    Organizational Affiliation

    INRA Biopolymères Interactions Assemblages, France.,INRA Biopolymères Interactions Assemblages, France; Department of Animal Nutrition and Feed Management, PoznańUniversity of Life Sciences, Poland; Institute of Biochemistry and Biophysics, University of Teheran, Teheran, Iran.,IQB3, School of Biological Sciences, The University of Edinburgh, Edinburgh, United Kingdom.,Department of Biotechnology, Agricultural University of Athens, Greece.,Department of Biochemistry, Veterinary Faculty, University of Thessaly, Greece.,Department of Biochemistry, Veterinary Faculty, University of Thessaly, Greece. Electronic address: gkontopidis@vet.uth.gr.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-lactoglobulin
A
162Bos taurusMutation(s): 0 
Gene Names: LGB
Find proteins for P02754 (Bos taurus)
Go to UniProtKB:  P02754
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TDA
Query on TDA

Download SDF File 
Download CCD File 
A
N-TRIDECANOIC ACID
C13 H26 O2
SZHOJFHSIKHZHA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.197 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 53.588α = 90.00
b = 53.588β = 90.00
c = 111.607γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
MOLREPphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2018-07-11
    Type: Data collection, Database references