4RCO

1.9 Angstrom Crystal Structure of Superantigen-like Protein, Exotoxin from Staphylococcus aureus, in Complex with Sialyl-LewisX.

• PDB DOI: https://doi.org/10.2210/pdb4RCO/pdb

• Classification: TOXIN
• Organism(s): Staphylococcus aureus subsp. aureus NCTC 8325
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-09-16 Released: 2014-10-01 
• Deposition Author(s): Minasov, G., Nocadello, S., Shuvalova, L., Filippova, E., Halavaty, A., Dubrovska, I., Flores, K., Bagnoli, F., Falugi, F., Bottomley, M., Grandi, G., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.214 
• R-Value Work: 0.172 
• R-Value Observed: 0.174 

Literature

1.9 Angstrom Crystal Structure of Superantigen-like Protein, Exotoxin from Staphylococcus aureus, in Complex with Sialyl-LewisX.

Minasov, G., Nocadello, S., Shuvalova, L., Filippova, E., Halavaty, A., Dubrovska, I., Flores, K., Bagnoli, F., Falugi, F., Bottomley, M., Grandi, G., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 68.1 kDa 
• Atom Count: 3,916 
• Modelled Residue Count: 384 
• Deposited Residue Count: 590 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative uncharacterized protein	A, B	295	Staphylococcus aureus subsp. aureus NCTC 8325	Mutation(s): 0  Gene Names: SAOUHSC_00389
UniProt
Find proteins for Q2G1S8 (Staphylococcus aureus (strain NCTC 8325 / PS 47)) Explore Q2G1S8  Go to UniProtKB:  Q2G1S8

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)]2-acetamido-2-deoxy-alpha-D-glucopyranose	C, D	4		N/A
Glycosylation Resources
GlyTouCan:  G07675NG GlyCosmos:  G07675NG GlyGen:  G07675NG

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	E [auth A], F [auth B], G [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900122	C, D	Sialyl-Lewis X antigen, alpha anomer	Oligosaccharide / Antigen

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.214 
• R-Value Work: 0.172 
• R-Value Observed: 0.174 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data: https://doi.org/10.18430/M34RCO

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.983	α = 90
b = 88.904	β = 90
c = 153.839	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-10-01 
Deposition Author(s): Minasov, G., Nocadello, S., Shuvalova, L., Filippova, E., Halavaty, A., Dubrovska, I., Flores, K., Bagnoli, F., Falugi, F., Bottomley, M., Grandi, G., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2014-10-01
  Type: Initial release
  
• Version 1.1: 2017-11-22
  Changes: Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary
• Version 2.1: 2023-09-20
  Changes: Data collection, Database references, Refinement description, Structure summary