1XXG

Crystal Structure of Staphylococcal Enterotoxin G

PDB DOI: https://doi.org/10.2210/pdb1XXG/pdb

Classification: IMMUNE SYSTEM
Organism(s): Staphylococcus aureus
Expression System: Escherichia coli BL21(DE3)
Mutation(s): Yes

Deposited: 2004-11-05 Released: 2006-02-21
Deposition Author(s): Fernandez, M.M., Bhattacharya, S., Malchiodi, E.L., Mariuzza, R.A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.259
R-Value Work: 0.231
R-Value Observed: 0.231

wwPDB Validation 3D Report Full Report

This is version 1.4 of the entry. See complete history.

Literature

The Crystal Structure of Staphylococcal Enterotoxin G and binding affinity to T-cell receptor and MHC class II molecule

Fernandez, M.M., Bhattacharya, S., Malchiodi, E.L., Mariuzza, R.A.

To be published.

Macromolecule Content

Total Structure Weight: 27.11 kDa
Atom Count: 1,859
Modelled Residue Count: 227
Deposited Residue Count: 233
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
enterotoxin	A	233	Staphylococcus aureus	Mutation(s): 1
UniProt
Find proteins for P0A0L8 (Staphylococcus aureus) Explore P0A0L8 Go to UniProtKB: P0A0L8
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P0A0L8
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A]	B [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.259
R-Value Work: 0.231
R-Value Observed: 0.231
Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.738	α = 90
b = 70.738	β = 90
c = 111.898	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Released Date: 2006-02-21

Deposition Author(s):

Fernandez, M.M.

Bhattacharya, S.

Malchiodi, E.L.

Revision History (Full details and data files)

Version 1.0: 2006-02-21
Type: Initial release
Version 1.1: 2008-04-30
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2021-10-20
Changes: Database references, Derived calculations
Version 1.4: 2023-08-23
Changes: Data collection, Refinement description

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.