1DEX

RHAMNOGALACTURONAN ACETYLESTERASE FROM ASPERGILLUS ACULEATUS AT 1.9 A RESOLUTION

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.162 

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This is version 2.0 of the entry. See complete history. 


Literature

Rhamnogalacturonan acetylesterase elucidates the structure and function of a new family of hydrolases.

Molgaard, A., Kauppinen, S., Larsen, S.

(2000) Structure 8: 373-383

  • DOI: 10.1016/s0969-2126(00)00118-0
  • Primary Citation of Related Structures:  
    1DEO, 1DEX

  • PubMed Abstract: 

    • The complex polysaccharide rhamnogalacturonan constitutes a major part of the hairy region of pectin. It can have different types of carbohydrate sidechains attached to the rhamnose residues in the backbone of alternating rhamnose and galacturonic acid residues; the galacturonic acid residues can be methylated or acetylated ...

    The complex polysaccharide rhamnogalacturonan constitutes a major part of the hairy region of pectin. It can have different types of carbohydrate sidechains attached to the rhamnose residues in the backbone of alternating rhamnose and galacturonic acid residues; the galacturonic acid residues can be methylated or acetylated. Aspergillus aculeatus produces enzymes that are able to perform a synergistic degradation of rhamnogalacturonan. The deacetylation of the backbone by rhamnogalacturonan acetylesterase (RGAE) is an essential prerequisite for the subsequent action of the enzymes that cleave the glycosidic bonds.

    Related Citations: 
    • Molecular cloning and characterization of a rhamnogalacturonan acetylesterase from Aspergillus aculeatus
      Kauppinen, S., Christgau, S., Kofod, L.V., Halkier, T., Dorreich, K., Dalboge, H.
      (1995) J Biol Chem 270: 27172
    • Crystallization and preliminary x-ray diffraction studies of the heterogeneously glycosylated enzyme rhamnogalacturonan acetylesterase from Aspergillus aculeatus
      Molgaard, A., Petersen, J., Kauppinen, S., Dalboge, H., Johnsen, A., Navarro Poulsen, J.-C., Larsen, S.
      (1998) Acta Crystallogr D Biol Crystallogr 54: 1026
    Organizational Affiliation: 

    Centre for Crystallographic Studies, University of Copenhagen, Copenhagen, DK-2100, Denmark.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RHAMNOGALACTURONAN ACETYLESTERASEA233Aspergillus aculeatusMutation(s): 0 
Gene Names: rha1
EC: 3.1.1.86
UniProt
Find proteins for Q00017 (Aspergillus aculeatus)
Explore Q00017 
Go to UniProtKB:  Q00017
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseB6N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G94106MV
GlyCosmos:  G94106MV
GlyGen:  G94106MV
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG
Download Ideal Coordinates CCD File 
C [auth A]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.55α = 90
b = 57.08β = 90
c = 71.86γ = 90
Software Package:
Software NamePurpose
ROTAVATAdata reduction
MLPHAREphasing
X-PLORrefinement
CCP4data scaling
ROTAVATAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-04-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary