2EVT

Crystal structure of D48V mutant of human Glycolipid Transfer Protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

The liganding of glycolipid transfer protein is controlled by glycolipid acyl structure.

Malinina, L.Malakhova, M.L.Kanack, A.T.Lu, M.Abagyan, R.Brown, R.E.Patel, D.J.

(2006) Plos Biol. 4: e362-e362

  • DOI: 10.1371/journal.pbio.0040362
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Glycosphingolipids (GSLs) play major roles in cellular growth and development. Mammalian glycolipid transfer proteins (GLTPs) are potential regulators of cell processes mediated by GSLs and display a unique architecture among lipid binding/transfer p ...

    Glycosphingolipids (GSLs) play major roles in cellular growth and development. Mammalian glycolipid transfer proteins (GLTPs) are potential regulators of cell processes mediated by GSLs and display a unique architecture among lipid binding/transfer proteins. The GLTP fold represents a novel membrane targeting/interaction domain among peripheral proteins. Here we report crystal structures of human GLTP bound to GSLs of diverse acyl chain length, unsaturation, and sugar composition. Structural comparisons show a highly conserved anchoring of galactosyl- and lactosyl-amide headgroups by the GLTP recognition center. By contrast, acyl chain chemical structure and occupancy of the hydrophobic tunnel dictate partitioning between sphingosine-in and newly-observed sphingosine-out ligand-binding modes. The structural insights, combined with computed interaction propensity distributions, suggest a concerted sequence of events mediated by GLTP conformational changes during GSL transfer to and/or from membranes, as well as during GSL presentation and/or transfer to other proteins.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glycolipid transfer protein
A
209Homo sapiensMutation(s): 1 
Gene Names: GLTP
Find proteins for Q9NZD2 (Homo sapiens)
Go to Gene View: GLTP
Go to UniProtKB:  Q9NZD2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEX
Query on HEX

Download SDF File 
Download CCD File 
A
HEXANE
C6 H14
VLKZOEOYAKHREP-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.201 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 55.459α = 90.00
b = 35.360β = 116.47
c = 58.011γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction
AMoREphasing
CrystalCleardata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-11-15
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-12-26
    Type: Database references
  • Version 1.4: 2017-10-18
    Type: Refinement description