1H46

The catalytic module of Cel7D from Phanerochaete chrysosporium as a chiral selector: Structural studies of its complex with the b-blocker (R)-propranolol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Catalytic Module of Cel7D from Phanerochaete Chrysosporium as a Chiral Selector: Structural Studies of its Complex with the Beta Blocker (R)-Propranolol

Munoz, I.G.Mowbray, S.L.Stahlberg, J.

(2003) Acta Crystallogr.,Sect.D 59: 637

  • Also Cited By: 1Z3T, 1Z3V, 1Z3W

  • PubMed Abstract: 
  • Previous investigations have shown that the major cellobiohydrolase of Phanerochaete chrysosporium, Cel7D (CBH 58), can be used to separate the enantiomers of a number of drugs, including adrenergic beta blockers such as propranolol. The structural b ...

    Previous investigations have shown that the major cellobiohydrolase of Phanerochaete chrysosporium, Cel7D (CBH 58), can be used to separate the enantiomers of a number of drugs, including adrenergic beta blockers such as propranolol. The structural basis of this enantioselectivity is explored here. A 1.5 A X-ray structure of the catalytic domain of Cel7D in complex with (R)-propranolol showed the ligand bound at the active site in glucosyl-binding subsites -1/+1. The catalytic residue Glu207 makes a strong charge-charge interaction with the secondary amine of (R)-propranolol; this is supported by a second interaction of the amine with the nearby Asp209. The aromatic naphthyl group stacks onto the indole ring of Trp373 (normally the glucosyl-binding platform of subsite +1). Other factors also contribute to good complementarity between the ligand and the substrate-binding cleft of the enzyme. Comparison with the previous structure of a related cellulase, Cel7A from Trichoderma reesei, in complex with (S)-propranolol strongly suggests that these enzymes will bind the (S)-enantiomer in a very similar manner, distinct from their mode of binding to (R)-propranolol. Tighter binding of both enzymes to the (S)-enantiomer is largely explained by two additional hydrogen-bonding interactions with its hydroxyl group. The distinct preference for the (R)-enantiomer is probably a consequence of structural differences near the naphthyl group of the ligand.


    Organizational Affiliation

    Department of Molecular Biology, Swedish University of Agricultural Sciences, Uppsala.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
EXOGLUCANASE I
X
431Phanerochaete chrysosporiumGene Names: CBHI.2
EC: 3.2.1.-
Find proteins for Q7LHI2 (Phanerochaete chrysosporium)
Go to UniProtKB:  Q7LHI2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
X
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
RNP
Query on RNP

Download SDF File 
Download CCD File 
X
(1E,2R)-1-(ISOPROPYLIMINO)-3-(1-NAPHTHYLOXY)PROPAN-2-OL
C16 H19 N O2
LLOTXRYLQVWOGC-AYCSXLNKSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
X
L-PEPTIDE LINKINGC5 H7 N O3GLU
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
RNPKd: 270000 nM BINDINGMOAD
RNPKi: 270000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.169 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 86.143α = 90.00
b = 46.557β = 102.99
c = 98.827γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance