Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 36.33 kDa 
• Atom Count: 2,991 
• Modelled Residue Count: 312 
• Deposited Residue Count: 322 
• Unique protein chains: 1

 1QUS

1.7 A RESOLUTION STRUCTURE OF THE SOLUBLE LYTIC TRANSGLYCOSYLASE SLT35 FROM ESCHERICHIA COLI

• PDB DOI: 10.2210/pdb1QUS/pdb

• Classification: HYDROLASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1999-07-03 Released: 1999-09-15 
• Deposition Author(s): van Asselt, E.J., Dijkstra, A.J., Kalk, K.H., Takacs, B., Keck, W., Dijkstra, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.207 
• R-Value Work: 0.176 
• R-Value Observed: 0.178 

Literature

Crystal structure of Escherichia coli lytic transglycosylase Slt35 reveals a lysozyme-like catalytic domain with an EF-hand.

van Asselt, E.J., Dijkstra, A.J., Kalk, K.H., Takacs, B., Keck, W., Dijkstra, B.W.

(1999) Structure 7: 1167-1180

• PubMed: 10545329 
• DOI: 10.1016/s0969-2126(00)80051-9
• Primary Citation of Related Structures:  
  1QUS, 1QUT


• PubMed Abstract: 
  

Lytic transglycosylases are bacterial muramidases that catalyse the cleavage of the beta- 1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetylglucosamine (GlcNAc) in peptidoglycan with concomitant formation of a 1,6-anhydrobond in the MurNAc residue. These muramidases play an important role in the metabolism of the bacterial cell wall and might therefore be potential targets for the rational design of antibacterial drugs. One of the lytic transglycosylases is Slt35, a naturally occurring soluble fragment of the outer membrane bound lytic transglycosylase B (MltB) from Escherichia coli.

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Related Citations: 

• Accelerated X-ray structure elucidation of a 36 kDa murmidase/transglycosylase using wARP
  van Asselt, E.J., Perrakis, A., Kalk, K.H., Lamzin, V.S., Dijkstra, B.W.
  (1998) Acta Crystallogr D Biol Crystallogr 54: 58

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Organizational Affiliation: 

BIOSON Research Institute, Laboratory of Biophysical Chemistry Groningen University, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LYTIC MUREIN TRANSGLYCOSYLASE B	A	322	Escherichia coli	Mutation(s): 2  EC: 3.2.1 (PDB Primary Data), 4.2.2 (UniProt)
UniProt
Find proteins for P41052 (Escherichia coli (strain K12)) Explore P41052  Go to UniProtKB:  P41052

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BCN	C [auth A]	BICINE C6 H13 N O4 FSVCELGFZIQNCK-UHFFFAOYSA-N
EDO	D [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.207 
• R-Value Work: 0.176 
• R-Value Observed: 0.178 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.329	α = 90
b = 67.883	β = 90
c = 98.853	γ = 90

Software Package:

Software Name	Purpose
DM	model building
WARP	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
DM	phasing
ARP/wARP	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-09-15 
Deposition Author(s): van Asselt, E.J., Dijkstra, A.J., Kalk, K.H., Takacs, B., Keck, W., Dijkstra, B.W.

Revision History  

• Version 1.0: 1999-09-15
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-11-03
  Changes: Database references, Derived calculations