4LP6

Crystal Structure of Human Carbonic Anhydrase II in complex with a quinoline oligoamide foldamer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of a complex formed by a protein and a helical aromatic oligoamide foldamer at 2.1 angstrom resolution.

Buratto, J.Colombo, C.Stupfel, M.Dawson, S.J.Dolain, C.Langlois d'Estaintot, B.Fischer, L.Granier, T.Laguerre, M.Gallois, B.Huc, I.

(2014) Angew.Chem.Int.Ed.Engl. 53: 883-887

  • DOI: 10.1002/anie.201309160
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In the search of molecules that could recognize sizeable areas of protein surfaces, a series of ten helical aromatic oligoamide foldamers was synthesized on solid phase. The foldamers comprise three to five monomers carrying various proteinogenic sid ...

    In the search of molecules that could recognize sizeable areas of protein surfaces, a series of ten helical aromatic oligoamide foldamers was synthesized on solid phase. The foldamers comprise three to five monomers carrying various proteinogenic side chains, and exist as racemic mixtures of interconverting right-handed and left-handed helices. Functionalization of the foldamers by a nanomolar ligand of human carbonic anhydrase II (HCA) ensured that they would be held in close proximity to the protein surface. Foldamer-protein interactions were screened by circular dichroism (CD). One foldamer displayed intense CD bands indicating that a preferred helix handedness is induced upon interacting with the protein surface. The crystal structure of the complex between this foldamer and HCA could be resolved at 2.1 Å resolution and revealed a number of unanticipated protein-foldamer, foldamer-foldamer, and protein-protein interactions.


    Organizational Affiliation

    Université de Bordeaux, CBMN, UMR 5248, Institut Européen de Chimie Biologie, 2 rue Robert Escarpit 33607 Pessac (France); CNRS, CBMN, UMR5248 (France); Institut Polytechnique de Bordeaux, UMR5248 (France).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A, B
260Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Go to Gene View: CA2
Go to UniProtKB:  P00918
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Q4I
Query on Q4I

Download SDF File 
Download CCD File 
A, B
8-({[4-(3-aminopropoxy)-8-({[4-hydroxy-8-({[4-(2-methylpropoxy)-8-({[4-(3-{[(4-sulfamoylbenzoyl)amino]methyl}phenoxy)butyl]carbamoyl}amino)quinolin-2-yl]carbonyl}amino)quinolin-2-yl]carbonyl}amino)quinolin-2-yl]carbonyl}amino)-4-(carboxymethoxy)quinoline-2-carboxylic acid
C68 H64 N12 O16 S
QYOLDZJQZAEMKE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.960α = 90.00
b = 84.170β = 97.18
c = 76.700γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
REFMACrefinement
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-23
    Type: Initial release
  • Version 1.1: 2014-09-17
    Type: Database references