3S6T

Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 V327G complexed with PUGNAc

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

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Literature

Active-pocket size differentiating insectile from bacterial chitinolytic beta-N-acetyl-D-hexosaminidases.

Liu, T., Zhang, H., Liu, F., Chen, L., Shen, X., Yang, Q.

(2011) Biochem J 438: 467-474

  • DOI: 10.1042/BJ20110390
  • Primary Citation of Related Structures:  
    3OZP, 3S6T

  • PubMed Abstract: 

    • Chitinolytic β-N-acetyl-D-hexosaminidase is a branch of the GH20 (glycoside hydrolase family 20) β-N-acetyl-D-hexosaminidases that is only distributed in insects and micro-organisms, and is therefore a potential target for the action of insecticides. PUGNAc [O-(2-acetamido-2-deoxy-D-glucopyransylidene)-amino-N-phenylcarbamate] was initially identified as an inhibitor against GH20 β-N-acetyl-D-hexosaminidases ...

    Chitinolytic β-N-acetyl-D-hexosaminidase is a branch of the GH20 (glycoside hydrolase family 20) β-N-acetyl-D-hexosaminidases that is only distributed in insects and micro-organisms, and is therefore a potential target for the action of insecticides. PUGNAc [O-(2-acetamido-2-deoxy-D-glucopyransylidene)-amino-N-phenylcarbamate] was initially identified as an inhibitor against GH20 β-N-acetyl-D-hexosaminidases. So far no crystal structure of PUGNAc in complex with any GH20 β-N-acetyl-D-hexosaminidase has been reported. We show in the present study that the sensitivities of chitinolytic β-N-acetyl-D-hexosaminidases towards PUGNAc can vary by 100-fold, with the order being OfHex1 (Ostrinia furnacalis β-N-acetyl-D-hexosaminidase)

    Organizational Affiliation: 

    School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, China.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N-acetylglucosaminidaseA575Ostrinia furnacalisMutation(s): 1 
EC: 3.2.1.52
UniProt
Find proteins for Q06GJ0 (Ostrinia furnacalis)
Explore Q06GJ0 
Go to UniProtKB:  Q06GJ0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ06GJ0
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OAN
Query on OAN
Download Ideal Coordinates CCD File 
B [auth A]O-(2-ACETAMIDO-2-DEOXY D-GLUCOPYRANOSYLIDENE) AMINO-N-PHENYLCARBAMATE
C15 H19 N3 O7
PBLNJFVQMUMOJY-JXZOILRNSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
OAN PDBBind:  3S6T Ki: 45 (nM) from 1 assay(s)
Binding MOAD:  3S6T Ki: 45 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 108.79α = 90
b = 108.79β = 90
c = 175.05γ = 120
Software Package:
Software NamePurpose
CrystalCleardata collection
AMoREphasing
REFMACrefinement
CrystalCleardata reduction
CrystalCleardata scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-04-11
    Type: Initial release