Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 56.74 kDa 
• Atom Count: 4139 
• Residue Count: 475 
• Unique protein chains: 1

1FSU

Crystal Structure of 4-Sulfatase (human)

• DOI: 10.2210/pdb1FSU/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Cricetulus griseus
• Mutation(s): No 


• Deposited: 1996-07-29 Released: 1998-02-04 
• Deposition Author(s): Bond, C., Guss, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.243 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 

Literature

Structure of a human lysosomal sulfatase.

Bond, C.S., Clements, P.R., Ashby, S.J., Collyer, C.A., Harrop, S.J., Hopwood, J.J., Guss, J.M.

(1997) Structure 5: 277-289

• PubMed: 9032078 
• DOI: 10.1016/s0969-2126(97)00185-8
• Primary Citation of Related Structures:  
  1FSU


• PubMed Abstract: 
  

. Sulfatases catalyze the hydrolysis of sulfuric acid esters from a wide variety of substrates including glycosaminoglycans, glycolipids and steroids. There is sufficient common sequence similarity within the class of sulfatase enzymes to indicate that they have a common structure. Deficiencies of specific lysosomal sulfatases that are involved in the degradation of glycosamino-glycans lead to rare inherited clinical disorders termed mucopolysaccharidoses. In sufferers of multiple sulfatase deficiency, all sulfatases are inactive because an essential post-translational modification of a specific active-site cysteine residue to oxo-alanine does not occur. Studies of this disorder have contributed to location and characterization of the sulfatase active site. To understand the catalytic mechanism of sulfatases, and ultimately the determinants of their substrate specificities, we have determined the structure of N-acetylgalactosamine-4-sulfatase.

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Organizational Affiliation: 

Department of Biochemistry, University of Sydney, NSW 2006 Australia.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
N-ACETYLGALACTOSAMINE-4-SULFATASE	A	492	Homo sapiens	Mutation(s): 0  Gene Names: G4S, ARSB EC: 3.1.6.12
Find proteins for P15848 (Homo sapiens) Explore P15848  Go to UniProtKB:  P15848
NIH Common Fund Data Resources
PHAROS  P15848 GTEx  ENSG00000113273

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Chain Length	2D Diagram
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B, C	2

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	A	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
CL	A	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
ALS	A	L-PEPTIDE LINKING	C3 H7 N O7 S		ALA

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.243 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 107	α = 90
b = 107	β = 90
c = 144.83	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-07-29 
• Released Date: 1998-02-04 
Deposition Author(s): Bond, C., Guss, M.

Revision History 

• Version 1.0: 1998-02-04
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2015-12-02
  Changes: Non-polymer description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary