7AN1

A single sulfatase is required for metabolism of colonic mucin O-glycans and intestinal colonization by a symbiotic human gut bacterium (BT1636-S1_20)

• PDB DOI: https://doi.org/10.2210/pdb7AN1/pdb

• Classification: HYDROLASE
• Organism(s): Bacteroides thetaiotaomicron VPI-5482
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-10-10 Released: 2021-10-27 
• Deposition Author(s): Sofia de Jesus Vaz Luis, A., Basle, A., Martens, E.C., Cartmell, A.
• Funding Organization(s): Wellcome Trust

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.167 
• R-Value Work: 0.141 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 58.45 kDa 
• Atom Count: 4,370 
• Modelled Residue Count: 483 
• Deposited Residue Count: 510 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Arylsulfatase	A [auth AAA]	510	Bacteroides thetaiotaomicron VPI-5482	Mutation(s): 0  Gene Names: BT_1636
UniProt
Find proteins for Q8A789 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50)) Explore Q8A789  Go to UniProtKB:  Q8A789

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B [auth A]	2		N/A
Glycosylation Resources
GlyTouCan:  G00055MO GlyCosmos:  G00055MO GlyGen:  G00055MO

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth AAA]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.167 
• R-Value Work: 0.141 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.28	α = 90
b = 87.85	β = 90
c = 103.31	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
BALBES	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-10-27 
Deposition Author(s): Sofia de Jesus Vaz Luis, A., Basle, A., Martens, E.C., Cartmell, A.

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Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	SBF0051065163470

Revision History  

• Version 1.0: 2021-10-27
  Type: Initial release
  
• Version 1.1: 2021-11-03
  Changes: Data collection
• Version 1.2: 2024-01-31
  Changes: Data collection, Derived calculations, Refinement description