3VMW

Crystal structure of pectate lyase Bsp165PelA from Bacillus sp. N165 in complex with trigalacturonate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.157 

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This is version 2.1 of the entry. See complete history


Literature

Crystal structure and substrate-binding mode of a novel pectate lyase from alkaliphilic Bacillus sp. N16-5.

Zheng, Y.Huang, C.H.Liu, W.Ko, T.P.Xue, Y.Zhou, C.Guo, R.T.Ma, Y.

(2012) Biochem Biophys Res Commun 420: 269-274

  • DOI: https://doi.org/10.1016/j.bbrc.2012.02.148
  • Primary Citation of Related Structures:  
    3VMV, 3VMW

  • PubMed Abstract: 

    The pectate lyase (Bsp165PelA) from Bacillus sp. N16-5 has great potential in industrial applications because it shows high specific activity under extremely alkaline conditions. Besides, activity measurement of Bsp165PelA does not require addition of calcium, in a way different from the other pectate lyases. Here we report crystal structures of Bsp165PelA in apo-form and in complex with trigalacturonate. The parallel β-helix, active site residues and substrate binding cleft are similar to those in the other pectate lyases from Polysaccharide Lyase family 1. However, some of the highly conserved Ca(2+) binding residues and secondary structures are altered in Bsp165PelA, making it difficult to coordinate with Ca(2+) as in the other pectate lyases. We found Bsp165PelA forms some direct enzyme-substrate interactions instead of using Ca(2+) ions bridging in the extremely alkaline environment.


  • Organizational Affiliation

    Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pectate lyase326Bacillus sp. N16-5Mutation(s): 0 
Gene Names: GU088530pelA
EC: 4.2.2.2
UniProt
Find proteins for D0VP31 (Bacillus sp. N16-5)
Explore D0VP31 
Go to UniProtKB:  D0VP31
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0VP31
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-galactopyranuronic acid-(1-4)-alpha-D-galactopyranuronic acid-(1-4)-alpha-D-galactopyranuronic acid
B
3N/A
Glycosylation Resources
GlyTouCan:  G29175YU
GlyCosmos:  G29175YU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.157 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 137.902α = 90
b = 48.174β = 90
c = 52.47γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASESphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2023-11-08
    Changes: Data collection, Database references, Refinement description, Structure summary