1OBA

Multimodular Pneumococcal Cell Wall Endolysin from phage Cp-1 complexed with choline


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for Selective Recognition of Pneumococcal Cell Wall by Modular Endolysin from Phage Cp-1.

Hermoso, J.A.Monterroso, B.Albert, A.Galan, B.Ahrazem, O.Garcia, P.Martinez-Ripoll, M.Garcia, J.L.Menendez, M.

(2003) Structure 11: 1239

  • Primary Citation of Related Structures:  1H09
  • Also Cited By: 2IXU, 2IXV, 2J8F, 2J8G

  • PubMed Abstract: 
  • Pneumococcal bacteriophage-encoded lysins are modular choline binding proteins that have been shown to act as enzymatic antimicrobial agents (enzybiotics) against streptococcal infections. Here we present the crystal structures of the free and cholin ...

    Pneumococcal bacteriophage-encoded lysins are modular choline binding proteins that have been shown to act as enzymatic antimicrobial agents (enzybiotics) against streptococcal infections. Here we present the crystal structures of the free and choline bound states of the Cpl-1 lysin, encoded by the pneumococcal phage Cp-1. While the catalytic module displays an irregular (beta/alpha)(5)beta(3) barrel, the cell wall-anchoring module is formed by six similar choline binding repeats (ChBrs), arranged into two different structural regions: a left-handed superhelical domain configuring two choline binding sites, and a beta sheet domain that contributes in bringing together the whole structure. Crystallographic and site-directed mutagenesis studies allow us to propose a general catalytic mechanism for the whole glycoside hydrolase family 25. Our work provides the first complete structure of a member of the large family of choline binding proteins and reveals that ChBrs are versatile elements able to tune the evolution and specificity of the pneumococcal surface proteins.


    Organizational Affiliation

    Grupo de Cristalografía Macromolecular y Biología Estructural, de Macromoléculas Biológicas, Instituto Química-Física Rocasolano, CSIC, Serrano 119, 28006 Madrid, Spain. xjuan@iqfr.csic.es




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSOZYME
A
339Streptococcus phage Cp-1Gene Names: CPL1 (22)
EC: 3.2.1.17
Find proteins for P15057 (Streptococcus phage Cp-1)
Go to UniProtKB:  P15057
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CHT
Query on CHT

Download SDF File 
Download CCD File 
A
CHOLINE ION
C5 H14 N O
OEYIOHPDSNJKLS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CHTKd: 3600000 nM BINDINGMOAD
CHTKd: 3600000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.205 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 78.030α = 90.00
b = 95.950β = 90.00
c = 129.300γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-10-17
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance