1L8F

Structure of 20K-endoglucanase from Melanocarpus albomyces at 1.8 A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of 20K endoglucanase from Melanocarpus albomyces at 1.8 A resolution.

Valjakka, J.Rouvinen, J.

(2003) Acta Crystallogr.,Sect.D 59: 765-768


  • PubMed Abstract: 
  • The crystal structure of the 20K endoglucanase from the thermophilic fungus Melanocarpus albomyces (Ma20k) has been determined. The structure was refined to 1.8 A resolution using data obtained at 120 K. Ma20k belongs to glycoside hydrolase family 45 ...

    The crystal structure of the 20K endoglucanase from the thermophilic fungus Melanocarpus albomyces (Ma20k) has been determined. The structure was refined to 1.8 A resolution using data obtained at 120 K. Ma20k belongs to glycoside hydrolase family 45. The three-dimensional structures of endoglucanase V (EGV) from the fungus Humicola insolens and of an endoglucanase from H. grisea var. thermoidea have previously been determined. The overall structure of Ma20k consists of a six-stranded beta-barrel domain similar to that found previously in family 45 endoglucanases. The flexible loop between strands V and VI, which was disordered in the uncomplexed structures of the Humicola endoglucanases but was ordered in complexed structures of EGV, is found to be well ordered in the native structure of Ma20k. The structure of Ma20k allows comparison between thermophilic and mesophilic proteins of family 45 and different principles for thermostability are discussed.


    Organizational Affiliation

    Department of Chemistry, University of Joensuu, Finland. jarkko.valjakka@joensuu.fi




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Endoglucanase
A
207Melanocarpus albomycesGene Names: cel45A
EC: 3.2.1.4
Find proteins for Q8J0K8 (Melanocarpus albomyces)
Go to UniProtKB:  Q8J0K8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.199 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 47.440α = 90.00
b = 47.440β = 90.00
c = 156.810γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-01
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance