4FDY

Crystal structure of a similar to lipoprotein, NLP/P60 family (SAV0400) from Staphylococcus aureus subsp. aureus Mu50 at 2.23 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of a Bifunctional Cell Wall Hydrolase CwlT Containing a Novel Bacterial Lysozyme and an NlpC/P60 dl-Endopeptidase.

Xu, Q.Chiu, H.J.Farr, C.L.Jaroszewski, L.Knuth, M.W.Miller, M.D.Lesley, S.A.Godzik, A.Elsliger, M.A.Deacon, A.M.Wilson, I.A.

(2014) J.Mol.Biol. 426: 169-184

  • DOI: 10.1016/j.jmb.2013.09.011

  • PubMed Abstract: 
  • Tn916-like conjugative transposons carrying antibiotic resistance genes are found in a diverse range of bacteria. Orf14 within the conjugation module encodes a bifunctional cell wall hydrolase CwlT that consists of an N-terminal bacterial lysozyme do ...

    Tn916-like conjugative transposons carrying antibiotic resistance genes are found in a diverse range of bacteria. Orf14 within the conjugation module encodes a bifunctional cell wall hydrolase CwlT that consists of an N-terminal bacterial lysozyme domain (N-acetylmuramidase, bLysG) and a C-terminal NlpC/P60 domain (γ-d-glutamyl-l-diamino acid endopeptidase) and is expected to play an important role in the spread of the transposons. We determined the crystal structures of CwlT from two pathogens, Staphylococcus aureus Mu50 (SaCwlT) and Clostridium difficile 630 (CdCwlT). These structures reveal that NlpC/P60 and LysG domains are compact and conserved modules, connected by a short flexible linker. The LysG domain represents a novel family of widely distributed bacterial lysozymes. The overall structure and the active site of bLysG bear significant similarity to other members of the glycoside hydrolase family 23 (GH23), such as the g-type lysozyme (LysG) and Escherichia coli lytic transglycosylase MltE. The active site of bLysG contains a unique structural and sequence signature (DxxQSSES+S) that is important for coordinating a catalytic water. Molecular modeling suggests that the bLysG domain may recognize glycan in a similar manner to MltE. The C-terminal NlpC/P60 domain contains a conserved active site (Cys-His-His-Tyr) that appears to be specific to murein tetrapeptide. Access to the active site is likely regulated by isomerism of a side chain atop the catalytic cysteine, allowing substrate entry or product release (open state), or catalysis (closed state).


    Organizational Affiliation

    Joint Center for Structural Genomics (http://www.jcsg.org); Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Similar to lipoprotein, NLP/P60 family
A, B
313Staphylococcus aureus (strain Mu50 / ATCC 700699)N/A
Find proteins for A0A0H3JPP0 (Staphylococcus aureus (strain Mu50 / ATCC 700699))
Go to UniProtKB:  A0A0H3JPP0
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
OCS
Query on OCS
A, B
L-PEPTIDE LINKINGC3 H7 N O5 SCYS
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 40.666α = 90.00
b = 71.994β = 95.91
c = 124.917γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SHELXphasing
XDSdata reduction
BUSTER-TNTrefinement
SHELXDphasing
BUSTERrefinement
XSCALEdata scaling
SHARPphasing
MolProbitymodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 1.1: 2013-12-04
    Type: Database references
  • Version 1.2: 2014-01-08
    Type: Database references
  • Version 1.3: 2017-11-15
    Type: Refinement description