1JJI

The Crystal Structure of a Hyper-thermophilic Carboxylesterase from the Archaeon Archaeoglobus fulgidus

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.203 

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This is version 1.2 of the entry. See complete history. 


Literature

The crystal structure of a hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus.

De Simone, G., Menchise, V., Manco, G., Mandrich, L., Sorrentino, N., Lang, D., Rossi, M., Pedone, C.

(2001) J Mol Biol 314: 507-518

  • DOI: 10.1006/jmbi.2001.5152
  • Primary Citation of Related Structures:  
    1JJI

  • PubMed Abstract: 

    • The crystal structure of AFEST, a novel hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus, complexed with a sulphonyl derivative, has been determined and refined to 2.2 A resolution. This enzyme, which has recently been cla ...

    The crystal structure of AFEST, a novel hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus, complexed with a sulphonyl derivative, has been determined and refined to 2.2 A resolution. This enzyme, which has recently been classified as a member of the hormone- sensitive-lipase (H) group of the esterase/lipase superfamily, presents a canonical alpha/beta hydrolase core, shielded on the C-terminal side by a cap region composed of five alpha-helices. It contains the catalytic triad Ser160, His285 and Asp255, whereby the nucleophile is covalently modified and the oxyanion hole formed by Gly88, Gly89 and Ala161. A structural comparison of AFEST with its mesophilic and thermophilic homologues, Brefeldin A esterase from Bacillus subtilis (BFAE) and EST2 from Alicyclobacillus acidocaldarius, reveals an increase in the number of intramolecular ion pairs and secondary structure content, as well as a significant reduction in loop extensions and ratio of hydrophobic to charged surface area. The variety of structural differences suggests possible strategies for thermostabilization of lipases and esterases with potential industrial applications.

    Related Citations: 
    • Cloning, Overexpression and Properties of a New Thermophilic and Termostable Esterase with Sequence Similarity to Hormone-Sensitive Lipase Subfamily from the archaeon Archaeoglobus fulgidus
      Manco, G., Giosue, E., D'Auria, S., Herman, P., Carrea, G., Rossi, M.
      (2000) Arch Biochem Biophys 373: 182
    • A snapshot of the transition state of a novel thermophilic esterase belonging to the subfamily of mammalian hormone-sensitive lipase
      De Simone, G., Galdiero, S., Manco, G., Lang, D., Rossi, M., Pedone, C.
      (2000) J Mol Biol 303: 761
    Organizational Affiliation: 

    Centro di Studio di Biocristallografia- CNR, University of Naples "Federico II", via Mezzocannone 6/8, Naples, 80134, Italy.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CarboxylesteraseA, B, C, D311Archaeoglobus fulgidusMutation(s): 0 
EC: 3.1.1.1
Find proteins for O28558 (Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126))
Explore O28558 
Go to UniProtKB:  O28558
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE
Download Ideal Coordinates CCD File 
A, B, C, D
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.203 
  • Space Group: P 62
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 169.05α = 90
b = 169.05β = 90
c = 104.544γ = 120
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance