5EQH

MFS transporter in complex with inhibitor (2~{S})-3-(2-bromophenyl)-2-[2-(4-methoxyphenyl)ethanoylamino]-~{N}-[(1~{S})-1-phenylethyl]propanamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Mechanism of inhibition of human glucose transporter GLUT1 is conserved between cytochalasin B and phenylalanine amides.

Kapoor, K.Finer-Moore, J.S.Pedersen, B.P.Caboni, L.Waight, A.Hillig, R.C.Bringmann, P.Heisler, I.Muller, T.Siebeneicher, H.Stroud, R.M.

(2016) Proc.Natl.Acad.Sci.USA 113: 4711-4716

  • DOI: 10.1073/pnas.1603735113
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cancerous cells have an acutely increased demand for energy, leading to increased levels of human glucose transporter 1 (hGLUT1). This up-regulation suggests hGLUT1 as a target for therapeutic inhibitors addressing a multitude of cancer types. Here, ...

    Cancerous cells have an acutely increased demand for energy, leading to increased levels of human glucose transporter 1 (hGLUT1). This up-regulation suggests hGLUT1 as a target for therapeutic inhibitors addressing a multitude of cancer types. Here, we present three inhibitor-bound, inward-open structures of WT-hGLUT1 crystallized with three different inhibitors: cytochalasin B, a nine-membered bicyclic ring fused to a 14-membered macrocycle, which has been described extensively in the literature of hGLUTs, and two previously undescribed Phe amide-derived inhibitors. Despite very different chemical backbones, all three compounds bind in the central cavity of the inward-open state of hGLUT1, and all binding sites overlap the glucose-binding site. The inhibitory action of the compounds was determined for hGLUT family members, hGLUT1-4, using cell-based assays, and compared with homology models for these hGLUT members. This comparison uncovered a probable basis for the observed differences in inhibition between family members. We pinpoint regions of the hGLUT proteins that can be targeted to achieve isoform selectivity, and show that these same regions are used for inhibitors with very distinct structural backbones. The inhibitor cocomplex structures of hGLUT1 provide an important structural insight for the design of more selective inhibitors for hGLUTs and hGLUT1 in particular.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94158;




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Solute carrier family 2, facilitated glucose transporter member 1
A
492Homo sapiensMutation(s): 0 
Gene Names: SLC2A1 (GLUT1)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Major Facilitator Superfamily (MFS) Transporters
Protein: 
GLUT1 glucose transporter (N45T/E329Q mutant)
Find proteins for P11166 (Homo sapiens)
Go to Gene View: SLC2A1
Go to UniProtKB:  P11166
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
5RF
Query on 5RF

Download SDF File 
Download CCD File 
A
(2~{S})-3-(2-bromophenyl)-2-[2-(4-methoxyphenyl)ethanoylamino]-~{N}-[(1~{S})-1-phenylethyl]propanamide
C26 H27 Br N2 O3
ZFUNKFOMZPXBEZ-UUOWRZLLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.226 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 121.510α = 90.00
b = 102.360β = 98.97
c = 68.723γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
HKL-2000data reduction
PHENIXrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM024485
Danish Council of Independent ResearchDenmarkDFF-4002-00052
European Research CouncilDenmark637372

Revision History 

  • Version 1.0: 2016-04-13
    Type: Initial release
  • Version 1.1: 2016-05-04
    Type: Database references
  • Version 1.2: 2016-05-11
    Type: Database references
  • Version 1.3: 2017-09-13
    Type: Author supporting evidence, Database references, Derived calculations