6PT6

Crystal structure of PsS1_NC C84S in complex with i-neocarratetraose

• PDB DOI: https://doi.org/10.2210/pdb6PT6/pdb

• Classification: HYDROLASE
• Organism(s): Pseudoalteromonas fuliginea
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2019-07-15 Released: 2019-09-25 
• Deposition Author(s): Hettle, A.G., Boraston, A.B.
• Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.252 
• R-Value Work: 0.200 
• R-Value Observed: 0.203 

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 114.41 kDa 
• Atom Count: 7,887 
• Modelled Residue Count: 945 
• Deposited Residue Count: 994 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
exo-2S-iota carrageenan S1 sulfatase	A [auth B], B [auth A]	497	Pseudoalteromonas fuliginea	Mutation(s): 0  Gene Names: EU509_08820

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
3,6-anhydro-2-O-sulfo-alpha-D-galactopyranose-(1-3)-4-O-sulfo-beta-D-galactopyranose	C, D	2		N/A
Glycosylation Resources
GlyTouCan:  G58187OK GlyCosmos:  G58187OK

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	E [auth B], F [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.252 
• R-Value Work: 0.200 
• R-Value Observed: 0.203 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.728	α = 90
b = 102.211	β = 90
c = 170.745	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Currently 6PT6 does not have a validation slider image.

Entry History & Funding Information

Deposition Data

• Released Date: 2019-09-25 
Deposition Author(s): Hettle, A.G., Boraston, A.B.

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

Revision History  

• Version 1.0: 2019-09-25
  Type: Initial release
  
• Version 1.1: 2020-01-08
  Changes: Author supporting evidence
• Version 1.2: 2020-01-15
  Changes: Database references
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-10-11
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary