9BES | pdb_00009bes

Structure of S1_8A, a lambda-carrageenan specific sulfatase, in complex with monosaccharide

• PDB DOI: https://doi.org/10.2210/pdb9BES/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Pseudoalteromonas distincta
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-04-16 Released: 2025-08-27 
• Deposition Author(s): Hettle, J.A., Vickers, C., Boraston, A.B.
• Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free: 
  0.263 (Depositor), 0.263 (DCC) 
• R-Value Work: 
  0.199 (Depositor), 0.199 (DCC) 
• R-Value Observed: 
  0.202 (Depositor) 

Literature

Structure of S1_8A, a lambda-carrageenan specific sulfatase, in complex with monosaccharide

Hettle, J.A., Vickers, C., Boraston, A.B.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 119.57 kDa 
• Atom Count: 7,975 
• Modeled Residue Count: 955 
• Deposited Residue Count: 1,028 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
S1_8A Sulfatase	A	514	Pseudoalteromonas distincta	Mutation(s): 0  EC: 3.1.6
UniProt
Find proteins for A0A2K4XG66 (Pseudoalteromonas carrageenovora IAM 12662) Explore A0A2K4XG66  Go to UniProtKB:  A0A2K4XG66

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
S1_8A Sulfatase	B	514	Pseudoalteromonas distincta	Mutation(s): 0

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GAL (Subject of Investigation/LOI)	C [auth A]	beta-D-galactopyranose C6 H12 O6 WQZGKKKJIJFFOK-FPRJBGLDSA-N
EDO	F [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CA	D [auth A], E [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free:  0.263 (Depositor), 0.263 (DCC) 
• R-Value Work:  0.199 (Depositor), 0.199 (DCC) 
• R-Value Observed: 0.202 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.683	α = 77.44
b = 56.202	β = 76.06
c = 97.232	γ = 64.03

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-27 
Deposition Author(s): Hettle, J.A., Vickers, C., Boraston, A.B.

---

Funding Organization	Location	Grant Number
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	--

Revision History  

• Version 1.0: 2025-08-27
  Type: Initial release