5B5S

Crystal structure of a carbohydrate esterase family 3 from Talaromyces cellulolyticus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.145 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structure of an acetylesterase from Talaromyces cellulolyticus and the importance of a disulfide bond near the active site

Watanabe, M.Fukada, H.Inoue, H.Ishikawa, K.

(2015) Febs Lett. 589: 1200-1206

  • DOI: 10.1016/j.febslet.2015.03.020
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Carbohydrate esterase catalyzes the de-O or de-N-acylation of substituted saccharides in plant cell walls and thus has great potential for industrial biomass saccharification. We recently identified the putative carbohydrate esterase family 3 (CE3) f ...

    Carbohydrate esterase catalyzes the de-O or de-N-acylation of substituted saccharides in plant cell walls and thus has great potential for industrial biomass saccharification. We recently identified the putative carbohydrate esterase family 3 (CE3) from Talaromyces cellulolyticus. Here, we prepared the recombinant catalytic domain of the enzyme and crystallized it. The crystal structure was determined to 1.5 Å resolution. From the structural analysis, it was elucidated that a n-octyl-β-D-glucopyranoside bound to near the catalytic triad (Ser10, Asp179 and His182) and was buried in the active site cavity. Site-directed mutagenesis showed that the N-terminal disulfide bond located near the catalytic triad is involved in the activity and structural stability of the enzyme.


    Organizational Affiliation

    Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Acetic acid
A
207Talaromyces cellulolyticusMutation(s): 0 
Gene Names: axe
Find proteins for A0A0A8IBJ8 (Talaromyces cellulolyticus)
Go to UniProtKB:  A0A0A8IBJ8
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO3
Query on SO3

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A
SULFITE ION
O3 S
LSNNMFCWUKXFEE-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
BOG
Query on BOG

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A
B-OCTYLGLUCOSIDE
C14 H28 O6
HEGSGKPQLMEBJL-RKQHYHRCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.145 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 70.905α = 90.00
b = 70.905β = 90.00
c = 87.093γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-11-16
    Type: Initial release