3KNE

Carbonic Anhydrase II H64C mutant in complex with an in situ formed triazole


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Stereo- and Regioselective Azide/Alkyne Cycloadditions in Carbonic Anhydrase II via Tethering, Monitored by Crystallography and Mass Spectrometry.

Schulze Wischeler, J.Sun, D.Sandner, N.U.Linne, U.Heine, A.Koert, U.Klebe, G.

(2011) Chemistry 17: 5842-5851

  • DOI: 10.1002/chem.201002437
  • Primary Citation of Related Structures:  3KIG

  • PubMed Abstract: 
  • The carbonic anhydrase II mutant His64Cys was prepared and applied to tethered alkyne/azide cycloaddition reactions. The azide component could be tethered to the enzyme surface through a disulfide bridge, while the alkyne component was reversibly coo ...

    The carbonic anhydrase II mutant His64Cys was prepared and applied to tethered alkyne/azide cycloaddition reactions. The azide component could be tethered to the enzyme surface through a disulfide bridge, while the alkyne component was reversibly coordinated through a sulfonamide anchor to the zinc ion in the original catalytic center of the enzyme. The incipient orientation of the reactants in the binding site and of the formed triazole product were characterized by crystallography. The reaction progression could be monitored by HPLC-MS analysis.


    Organizational Affiliation

    Institut für Pharmazeutische Chemie, Philipps-Universität Marburg, Marbacher Weg 6, 35032 Marburg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
265Homo sapiensGene 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 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DAW
Query on DAW

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Download CCD File 
A
N-[(S)-(1-{2-oxo-2-[(3-sulfanylpropyl)amino]ethyl}-1H-1,2,3-triazol-5-yl)(phenyl)methyl]-4-sulfamoylbenzamide
C21 H24 N6 O4 S2
SQLGLXFRIDQRKD-FQEVSTJZSA-N
 Ligand Interaction
ZN
Query on ZN

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Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
BE7
Query on BE7

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Download CCD File 
A
(4-CARBOXYPHENYL)(CHLORO)MERCURY
P-CHLOROMERCURIBENZOIC ACID
C7 H5 Cl Hg O2
YFZOUMNUDGGHIW-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.400α = 90.00
b = 41.500β = 104.30
c = 72.000γ = 90.00
Software Package:
Software NamePurpose
SHELXmodel building
HKL-2000data reduction
HKL-2000data scaling
SHELXL-97refinement
MAR345data collection
SHELXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-05-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description