4UZ3

Crystal structure of the N-terminal LysM domains from the putative NlpC/P60 D,L endopeptidase from T. thermophilus bound to N-acetyl-chitohexaose

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.152 
  • R-Value Observed: 0.154 

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This is version 2.0 of the entry. See complete history. 


Literature

An Intermolecular Binding Mechanism Involving Multiple Lysm Domains Mediates Carbohydrate Recognition by an Endopeptidase.

Wong, J.E.M.M., Midtgaard, S.R., Gysel, K., Thygesen, M.B., Sorensen, K.K., Jensen, K.J., Stougaard, J., Thirup, S., Blaise, M.

(2015) Acta Crystallogr D Biol Crystallogr 71: 592

  • DOI: 10.1107/S139900471402793X
  • Primary Citation of Related Structures:  
    4UZ2, 4UZ3, 4XCM

  • PubMed Abstract: 

    • LysM domains, which are frequently present as repetitive entities in both bacterial and plant proteins, are known to interact with carbohydrates containing N-acetylglucosamine (GlcNAc) moieties, such as chitin and peptidoglycan. In bacteria, the functional significance of the involvement of multiple LysM domains in substrate binding has so far lacked support from high-resolution structures of ligand-bound complexes ...

    LysM domains, which are frequently present as repetitive entities in both bacterial and plant proteins, are known to interact with carbohydrates containing N-acetylglucosamine (GlcNAc) moieties, such as chitin and peptidoglycan. In bacteria, the functional significance of the involvement of multiple LysM domains in substrate binding has so far lacked support from high-resolution structures of ligand-bound complexes. Here, a structural study of the Thermus thermophilus NlpC/P60 endopeptidase containing two LysM domains is presented. The crystal structure and small-angle X-ray scattering solution studies of this endopeptidase revealed the presence of a homodimer. The structure of the two LysM domains co-crystallized with N-acetyl-chitohexaose revealed a new intermolecular binding mode that may explain the differential interaction between LysM domains and short or long chitin oligomers. By combining the structural information with the three-dimensional model of peptidoglycan, a model suggesting how protein dimerization enhances the recognition of peptidoglycan is proposed.

    Organizational Affiliation: 

    Centre for Carbohydrate Recognition and Signalling, Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10C, 8000 Aarhus, Denmark.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CELL WALL-BINDING ENDOPEPTIDASE-RELATED PROTEINA, B, C100Thermus thermophilus HB8Mutation(s): 0 
Gene Names: TTHA0266
UniProt
Find proteins for Q5SLM7 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SLM7 
Go to UniProtKB:  Q5SLM7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SLM7
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranoseD 7N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G05564UH
GlyCosmos:  G05564UH
GlyGen:  G05564UH
Entity ID: 3
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseE 6N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G36414FS
GlyCosmos:  G36414FS
GlyGen:  G36414FS
Entity ID: 4
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseF 7N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G36414FS
GlyCosmos:  G36414FS
GlyGen:  G36414FS
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDG
Query on NDG
Download Ideal Coordinates CCD File 
G [auth A]2-acetamido-2-deoxy-alpha-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N		 Ligand Interaction
SO4
Query on SO4
Download Ideal Coordinates CCD File 
H [auth A],
I [auth A],
K [auth B]		SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
DIO
Query on DIO
Download Ideal Coordinates CCD File 
J [auth A],
L [auth C]		1,4-DIETHYLENE DIOXIDE
C4 H8 O2
RYHBNJHYFVUHQT-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.152 
  • R-Value Observed: 0.154 
  • Space Group: P 21 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.49α = 90
b = 105.49β = 90
c = 105.49γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-03-11
    Changes: Database references
  • Version 1.2: 2015-03-25
    Changes: Database references
  • Version 1.3: 2018-01-17
    Changes: Data collection
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Other, Structure summary