3CYU

Human Carbonic Anhydrase II complexed with Cryptophane biosensor and xenon


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of a 129Xe-cryptophane biosensor complexed with human carbonic anhydrase II.

Aaron, J.A.Chambers, J.M.Jude, K.M.Di Costanzo, L.Dmochowski, I.J.Christianson, D.W.

(2008) J.Am.Chem.Soc. 130: 6942-6943

  • DOI: 10.1021/ja802214x

  • PubMed Abstract: 
  • Cryptophanes represent an exciting class of xenon-encapsulating molecules that can be exploited as probes for nuclear magnetic resonance imaging. The 1.70 A resolution crystal structure of a cryptophane-derivatized benezenesulfonamide complexed with ...

    Cryptophanes represent an exciting class of xenon-encapsulating molecules that can be exploited as probes for nuclear magnetic resonance imaging. The 1.70 A resolution crystal structure of a cryptophane-derivatized benezenesulfonamide complexed with human carbonic anhydrase II shows how an encapsulated xenon atom can be directed to a specific biological target. The crystal structure confirms binding measurements indicating that the cryptophane cage does not strongly interact with the surface of the protein, which may enhance the sensitivity of 129Xe NMR spectroscopic measurements in solution.


    Organizational Affiliation

    Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
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 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
XE
Query on XE

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Download CCD File 
A
XENON
Xe
FHNFHKCVQCLJFQ-UHFFFAOYSA-N
 Ligand Interaction
1CR
Query on 1CR

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A
PoPo-2-[4-(2-(4-(methoxy)-1H-1,2,3-triazol-1-yl)ethyl)benzenesulfonamide]-7,12-bis-[3-(4-(methoxy)-1H-1,2,3-triazol-1-yl)propanoic acid]-cryptophane-A
3,3'-{[14,21,28-trimethoxy-42-({1-[2-(4-sulfamoylphenyl)ethyl]-1H-1,2,3-triazol-4-yl}methoxy)-9,12,30,33,43,46-hexaoxadecacyclo[20.20.4.3~8,37~.3~16,29~.1~13,17~.1~34,38~.0~3,40~.0~5,49~.0~19,24~.0~26,52~]tetrapentaconta-1(42),2,5,7,13(54),14,16,19,21,23,26,28,34(47),35,37,40,49,51-octadecaene-7,35-diyl]bis(oxymethanediyl-1H-1,2,3-triazole-4,1-diyl)}dipropanoic acid
C74 H74 N10 O18 S
SAIYTGCUDKIERP-UHFFFAOYSA-N
 Ligand Interaction
0CR
Query on 0CR

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A
MoMo-2-[4-(2-(4-(methoxy)-1H-1,2,3-triazol-1-yl)ethyl)benzenesulfonamide]-7,12-bis-[3-(4-(methoxy)-1H-1,2,3-triazol-1-yl)propanoic acid]-cryptophane-A
3,3'-{[14,21,28-trimethoxy-42-({1-[2-(4-sulfamoylphenyl)ethyl]-1H-1,2,3-triazol-4-yl}methoxy)-9,12,30,33,43,46-hexaoxadecacyclo[20.20.4.3~8,37~.3~16,29~.1~13,17~.1~34,38~.0~3,40~.0~5,49~.0~19,24~.0~26,52~]tetrapentaconta-1(42),2,5,7,13(54),14,16,19,21,23,26,28,34(47),35,37,40,49,51-octadecaene-7,35-diyl]bis(oxymethanediyl-1H-1,2,3-triazole-4,1-diyl)}dipropanoic acid
C74 H74 N10 O18 S
SAIYTGCUDKIERP-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0CRKd: 60 nM BINDINGMOAD
1CRKd: 60 nM BINDINGMOAD
OCRKd: 60 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.226 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 67.441α = 90.00
b = 49.985β = 107.13
c = 81.038γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
ADSCdata collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Non-polymer description, Version format compliance