3FW6

Crystal structure of CelM2, a bifunctional glucanase-xylanase protein from a metagenome library


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of CelM2, a bifunctional glucanase-xylanase protein from a metagenome library

Nam, K.H.Kim, S.-J.Hwang, K.Y.

(2009) Biochem.Biophys.Res.Commun. 383: 183-186

  • DOI: 10.1016/j.bbrc.2009.03.149

  • PubMed Abstract: 
  • Degradation of polysaccharides by cellulases and xylanases plays an important role in the carbon cycle, but only occurs in plant cell walls, a few bacteria and some animals. This process is also critical in processes such as biomass degradation and f ...

    Degradation of polysaccharides by cellulases and xylanases plays an important role in the carbon cycle, but only occurs in plant cell walls, a few bacteria and some animals. This process is also critical in processes such as biomass degradation and fuel production in the conversion cycles of cellulosic biomass. The enzyme CelM2 is bifunctional, because it is able to effectively hydrolyze barley glucan and xylan. Here, we show the crystal structure of the bifunctional enzyme CelM2, isolated from a metagenome library, and describe the sequence information and structure of its two domains. We believe that CelM2 is attractive as an industrial enzyme and that the structural results presented herein provide insights that are relevant to the genetic engineering of multifunctional enzymes.


    Organizational Affiliation

    Division of Biotechnology, College of Life Sciences & Biotechnology, Korea University, Seoul, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cellulase
A
534uncultured bacteriumMutation(s): 0 
Gene Names: celM2
Find proteins for A1E9A6 (uncultured bacterium)
Go to UniProtKB:  A1E9A6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 86.663α = 90.00
b = 86.952β = 90.00
c = 111.285γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
CNSrefinement
MOLREPphasing
HKL-2000data collection
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2009-01-17 
  • Released Date: 2009-03-03 
  • Deposition Author(s): Hwang, K.Y., Nam, K.H.

Revision History 

  • Version 1.0: 2009-03-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance