5ANZ

Crystal Structure of SltB3 from Pseudomonas aeruginosa.

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.180 

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Literature

Turnover of Bacterial Cell Wall by Sltb3, a Multidomain Lytic Transglycosylase of Pseudomonas Aeruginosa.

Lee, M., Dominguez-Gil, T., Hesek, D., Mahasenan, K.V., Lastochkin, E., Hermoso, J.A., Mobashery, S.

(2016) ACS Chem Biol 11: 1525

  • DOI: 10.1021/acschembio.6b00194
  • Primary Citation of Related Structures:  
    5ANZ, 5AO8, 5AO7

  • PubMed Abstract: 

    • A family of 11 lytic transglycosylases in Pseudomonas aeruginosa, an opportunistic human pathogen, turn over the polymeric bacterial cell wall in the course of its recycling, repair, and maturation. The functions of these enzymes are not fully understood ...

    A family of 11 lytic transglycosylases in Pseudomonas aeruginosa, an opportunistic human pathogen, turn over the polymeric bacterial cell wall in the course of its recycling, repair, and maturation. The functions of these enzymes are not fully understood. We disclose herein that SltB3 of P. aeruginosa is an exolytic lytic transglycosylase. We characterize its reaction and its products by the use of peptidoglycan-based molecules. The enzyme recognizes a minimum of four sugars in its substrate but can process a substrate comprised of a peptidoglycan of 20 sugars. The ultimate product of the reaction is N-acetylglucosamine-1,6-anhydro-N-acetylmuramic acid. The X-ray structure of this enzyme is reported for the first time. The enzyme is comprised of four domains, arranged within an annular conformation. The polymeric linear peptidoglycan substrate threads through the opening of the annulus, as it experiences turnover.

    Organizational Affiliation: 

    Department of Chemistry and Biochemistry, University of Notre Dame , Nieuwland Science Hall, Notre Dame, Indiana 46556, United States.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SOLUBLE LYTIC TRANSGLYCOSYLASE B3 A420Pseudomonas aeruginosaMutation(s): 0 
Find proteins for Q9HX28 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9HX28 
Go to UniProtKB:  Q9HX28
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG
Query on PEG
Download Ideal Coordinates CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N		 Ligand Interaction
CA
Query on CA
Download Ideal Coordinates CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.180 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 112.281α = 90
b = 61.84β = 90
c = 50.63γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-07-20
    Type: Initial release