4BKS

von Hippel Lindau protein:ElonginB:ElonginC complex, in complex with (2S,4R)-1-ethanoyl-N-[[4-(1,3-oxazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Is NMR Fragment Screening Fine-Tuned to Assess Druggability of Protein-Protein Interactions?

Dias, D.M.Van Molle, I.Baud, M.G.J.Galdeano, C.Geraldes, C.F.G.C.Ciulli, A.

(2014) Acs Med.Chem.Lett. 5: 23

  • DOI: 10.1021/ml400296c
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Modulation of protein-protein interactions (PPIs) with small molecules has been hampered by a lack of lucid methods capable of reliably identifying high-quality hits. In fragment screening, the low ligand efficiencies associated with PPI target sites ...

    Modulation of protein-protein interactions (PPIs) with small molecules has been hampered by a lack of lucid methods capable of reliably identifying high-quality hits. In fragment screening, the low ligand efficiencies associated with PPI target sites pose significant challenges to fragment binding detection. Here, we investigate the requirements for ligand-based NMR techniques to detect rule-of-three compliant fragments that form part of known high-affinity inhibitors of the PPI between the von Hippel-Lindau protein and the alpha subunit of hypoxia-inducible factor 1 (pVHL:HIF-1α). Careful triaging allowed rescuing weak but specific binding of fragments that would otherwise escape detection at this PPI. Further structural information provided by saturation transfer difference (STD) group epitope mapping, protein-based NMR, competitive isothermal titration calorimetry (ITC), and X-ray crystallography confirmed the binding mode of the rescued fragments. Our findings have important implications for PPI druggability assessment by fragment screening as they reveal an accessible threshold for fragment detection and validation.


    Organizational Affiliation

    Department of Chemistry, University of Cambridge , Cambridge CB2 1EW, U.K. ; Department of Life Sciences, Faculty of Science and Technology, Centre for Neurosciences and Cell Biology and Chemistry Centre, University of Coimbra , Coimbra, Portugal.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 2
A, J
104Homo sapiensMutation(s): 0 
Gene Names: ELOB (TCEB2)
Find proteins for Q15370 (Homo sapiens)
Go to Gene View: ELOB
Go to UniProtKB:  Q15370
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 1
B, E, H, K
97Homo sapiensMutation(s): 0 
Gene Names: ELOC (TCEB1)
Find proteins for Q15369 (Homo sapiens)
Go to Gene View: ELOC
Go to UniProtKB:  Q15369
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VON HIPPEL-LINDAU DISEASE TUMOR SUPPRESSOR
C, F, I, L
162Homo sapiensMutation(s): 0 
Gene Names: VHL
Find proteins for P40337 (Homo sapiens)
Go to Gene View: VHL
Go to UniProtKB:  P40337
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 2
D, G
104Homo sapiensMutation(s): 0 
Gene Names: ELOB (TCEB2)
Find proteins for Q15370 (Homo sapiens)
Go to Gene View: ELOB
Go to UniProtKB:  Q15370
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
X6C
Query on X6C

Download SDF File 
Download CCD File 
C, F, I, L
(2S,4R)-1-ethanoyl-N-[[4-(1,3-oxazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide
C17 H19 N3 O4
KFYARNZFJDIZMC-CABCVRRESA-N
 Ligand Interaction
ACT
Query on ACT

Download SDF File 
Download CCD File 
C, L
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CAS
Query on CAS
A, C, F, I, J, L
L-PEPTIDE LINKINGC5 H12 As N O2 SCYS
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
X6CKd: 150000 nM (99) BINDINGDB
X6CKd: 150000 nM BINDINGMOAD
X6CKd: 150000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.188 
  • Space Group: P 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 93.590α = 90.00
b = 93.590β = 90.00
c = 363.740γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
XDSdata reduction
BUSTERrefinement
BUSTERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-27
    Type: Initial release
  • Version 1.1: 2014-01-29
    Type: Database references