2X9L

Crystal structure of deacetylase-bog complex in biosynthesis pathway of teicoplanin.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Regioselective Deacetylation Based on Teicoplanin-Complexed Orf2 Crystal Structures.

Chan, H.C.Huang, Y.T.Lyu, S.Y.Huang, C.J.Li, Y.S.Liu, Y.C.Chou, C.C.Tsai, M.D.Li, T.L.

(2011) Mol Biosyst 7: 1224

  • DOI: https://doi.org/10.1039/c0mb00320d
  • Primary Citation of Related Structures:  
    2X9L, 2XAD

  • PubMed Abstract: 

    Lipoglycopeptide antibiotics are more effective than vancomycin against MRSA as they carry an extra aliphatic acyl side chain on glucosamine (Glm) at residue 4 (r4). The biosynthesis of the r4 N-acyl Glc moiety at teicoplanin (Tei) or A40926 has been elucidated, in which the primary amine nucleophile of Glm is freed from the r4 GlcNac pseudo-Tei precursor by Orf2* for the subsequent acylation reaction to occur. In this report, two Orf2* structures in complex with β-D-octyl glucoside or Tei were solved. Of the complexed structures, the substrate binding site and a previously unknown hydrophobic cavity were revealed, wherein r4 GlcNac acts as the key signature for molecular recognition and the cavity allows substrates carrying longer acyl side chains in addition to the acetyl group. On the basis of the complexed structures, a triple-mutation mutant S98A/V121A/F193Y is able to regioselectively deacetylate r6 GlcNac pseudo-Tei instead of that at r4. Thereby, novel analogs can be made at the r6 sugar moiety.


  • Organizational Affiliation

    Genomics Research Center, Academia Sinica, Taipei, Taiwan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
N-ACYL GLM PEUDO-TEICOPLANIN DEACETYLASE273Actinoplanes teichomyceticusMutation(s): 0 
UniProt
Find proteins for Q6ZZJ1 (Actinoplanes teichomyceticus)
Explore Q6ZZJ1 
Go to UniProtKB:  Q6ZZJ1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6ZZJ1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.452α = 90
b = 64.028β = 99.06
c = 50.342γ = 90
Software Package:
Software NamePurpose
SOLVEphasing
RESOLVEphasing
PHENIXrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-02-09
    Type: Initial release
  • Version 1.1: 2014-01-15
    Changes: Database references, Version format compliance
  • Version 1.2: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary