1XXG | pdb_00001xxg

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 (Depositor), 0.259 (DCC)
R-Value Work:
0.231 (Depositor), 0.231 (DCC)
R-Value Observed:
0.231 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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This is version 1.5 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
Modeled Residue Count: 227
Deposited Residue Count: 233
Unique protein chains: 1

Macromolecules

Find similar proteins by:

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% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% 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] mmCIF 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 (Depositor), 0.259 (DCC)
R-Value Work: 0.231 (Depositor), 0.231 (DCC)
R-Value Observed: 0.231 (Depositor)

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

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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
Version 1.5: 2024-11-13
Changes: Structure summary

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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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.