1IDJ

PECTIN LYASE A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Two crystal structures of pectin lyase A from Aspergillus reveal a pH driven conformational change and striking divergence in the substrate-binding clefts of pectin and pectate lyases.

Mayans, O.Scott, M.Connerton, I.Gravesen, T.Benen, J.Visser, J.Pickersgill, R.Jenkins, J.

(1997) Structure 5: 677-689

  • Primary Citation of Related Structures:  1IDK

  • PubMed Abstract: 
  • Microbial pectin and pectate lyases are virulence factors that degrade the pectic components of the plant cell wall. The homogalacturan backbone of pectin varies in its degree of methylation from the highly methylated and relatively hydrophobic form ...

    Microbial pectin and pectate lyases are virulence factors that degrade the pectic components of the plant cell wall. The homogalacturan backbone of pectin varies in its degree of methylation from the highly methylated and relatively hydrophobic form known as pectin, to the fully demethylated and highly charged form known as pectate. Methylated and demethylated regions of pectin are cleaved by pectin lyase and calcium-dependent pectate lyases, respectively. Protein engineering of lyases specific for particular patterns of methylation, will yield modified pectins of high value to the food and pharmaceutical industries.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of Pectin Lyase a from Aspergillus Niger
      Jenkins, J.,Scott, M.,Mayans, O.,Pickersgill, R.,Harris, G.,Connerton, I.,Gravesen, T.
      (1996) Acta Crystallogr.,Sect.D 52: 402
    • The Structure of Bacillus Subtilis Pectate Lyase in Complex with Calcium
      Pickersgill, R.,Jenkins, J.,Harris, G.,Nasser, W.,Robert-Baudouy, J.
      (1994) Nat.Struct.Mol.Biol. 1: 717


    Organizational Affiliation

    Department of Food Macromolecular Science, Institute of Food Research, Earley Gate, Whiteknights Road, Reading, RG6 6BZ, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PECTIN LYASE A
A, B
359Aspergillus nigerGene Names: pelA
EC: 4.2.2.10
Find proteins for Q01172 (Aspergillus niger)
Go to UniProtKB:  Q01172
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.160 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 47.900α = 78.60
b = 52.400β = 90.10
c = 76.300γ = 104.60
Software Package:
Software NamePurpose
AGROVATAdata reduction
X-PLORmodel building
CCP4data scaling
X-PLORphasing
ROTAVATAdata reduction
X-PLORrefinement
ROTAVATA)data scaling
XENGENdata collection
XENGENdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance