Biological Assembly 1  

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 73935.25 
• Atom Count: 5282 
• Residue Count: 658 
• Unique protein chains: 1

2CFU

Crystal structure of SdsA1, an alkylsulfatase from Pseudomonas aeruginosa, in complex with 1-decane-sulfonic-acid.

• DOI: 10.2210/pdb2CFU/pdb

• Classification: HYDROLASE
• Organism(s): Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
• Expression System: Escherichia coli


• Deposited: 2006-02-23 Released: 2006-04-26 
• Deposition Author(s): Hagelueken, G., Adams, T.M., Wiehlmann, L., Widow, U., Kolmar, H., Tuemmler, B., Heinz, D.W., Schubert, W.-D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.217 
• R-Value Work: 0.171 

Literature

The Crystal Structure of Sdsa1, an Alkylsulfatase from Pseudomonas Aeruginosa, Defines a Third Class of Sulfatases.

Hagelueken, G., Adams, T.M., Wiehlmann, L., Widow, U., Kolmar, H., Tummler, B., Heinz, D.W., Schubert, W.-D.

(2006) Proc.Natl.Acad.Sci.USA 103: 7631

• PubMed: 16684886 
• DOI: 10.1073/pnas.0510501103
• Primary Citation of Related Structures:  
  2CG3, 2CG2, 2CFZ


• PubMed Abstract: 
  

Pseudomonas aeruginosa is both a ubiquitous environmental bacterium and an opportunistic human pathogen. A remarkable metabolic versatility allows it to occupy a multitude of ecological niches, including wastewater treatment plants and such hostile environments as the human respiratory tract. P. aeruginosa is able to degrade and metabolize biocidic SDS, the detergent of most commercial personal hygiene products. We identify SdsA1 of P. aeruginosa as a secreted SDS hydrolase that allows the bacterium to use primary sulfates such as SDS as a sole carbon or sulfur source. Homologues of SdsA1 are found in many pathogenic and some nonpathogenic bacteria. The crystal structure of SdsA1 reveals three distinct domains. The N-terminal catalytic domain with a binuclear Zn2+ cluster is a distinct member of the metallo-beta-lactamase fold family, the central dimerization domain ensures resistance to high concentrations of SDS, whereas the C-terminal domain provides a hydrophobic groove, presumably to recruit long aliphatic substrates. Crystal structures of apo-SdsA1 and complexes with substrate analog and products indicate an enzymatic mechanism involving a water molecule indirectly activated by the Zn2+ cluster. The enzyme SdsA1 thus represents a previously undescribed class of sulfatases that allows P. aeruginosa to survive and thrive under otherwise bacteriocidal conditions.

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Organizational Affiliation: 

Division of Structural Biology, German Research Centre for Biotechnology, Mascheroder Weg 1, D-38124 Braunschweig, Germany.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
SDSA1	A	658	Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)	Mutation(s): 0  Gene Names: sdsA1
Find proteins for Q9I5I9 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Go to UniProtKB:  Q9I5I9

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
1DB	A	1-DECANE-SULFONIC-ACID DECANE-1-SULFONIC ACID C10 H22 O3 S KVGOXGQSTGQXDD-UHFFFAOYSA-N
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
IPA	A	ISOPROPYL ALCOHOL 2-PROPANOL C3 H8 O KFZMGEQAYNKOFK-UHFFFAOYSA-N
PEG	A	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.217 
• R-Value Work: 0.171 
• Space Group: P 6₅ 2 2

Unit Cell:

Length (Å)	Angle (°)
a = 86.057	α = 90.00
b = 86.057	β = 90.00
c = 364.413	γ = 120.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
DENZO	data reduction
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-02-23 
• Released Date: 2006-04-26 
• Deposition Author(s): Hagelueken, G., Adams, T.M., Wiehlmann, L., Widow, U., Kolmar, H., Tuemmler, B., Heinz, D.W., Schubert, W.-D.

Revision History 

• Version 1.0: 2006-04-26
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Advisory, Version format compliance
• Version 1.2: 2011-09-28
  Type: Atomic model, Database references, Derived calculations, Non-polymer description