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1qil

INACTIVE MUTANT TOXIC SHOCK SYNDROME TOXIN-1 AT 2.5 A

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

TOXIC SHOCK SYNDROME TOXIN-1

Staphylococcus aureus

UniProt P06886

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 water × 1 Consistent with protein count
2 Protein monomer Monomer Protein 1 water × 1 Consistent with protein count
3 Protein monomer Monomer Protein 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1aw7 1aw7 1aw7 1aw7 1qil 1qil 1qil 1ts2 1ts2 1ts2 1ts3 1ts3

27 assemblies; showing the first 12

Homodimer
4ohj 4ohj

2 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name TSST_STAAU
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–194； UniProt 41–234 Author chain B； PDBConstruct 1–194； UniProt 41–234 Author chain C； PDBConstruct 1–194； UniProt 41–234

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id1qil
Deposition date deposition_date1997-03-27
Structure title titleINACTIVE MUTANT TOXIC SHOCK SYNDROME TOXIN-1 AT 2.5 A
Keywords keywordsTOXIN, SUPERANTIGEN, STAPHYLOCOCCAL ENTEROTOXIN; TOXIN
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1qil__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1qil__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1qil__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）18.35 Å
Rg (electron density)17.21 Å
Total Rg18.27 Å
Atom count1554
Residues194
Excluded volume27671 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1qil__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1qil__assembly_2__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1qil__assembly_3__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd1qila1
Class classb — All beta proteins
Fold Fold foldb.40 — OB-fold
Superfamily Superfamily superfamilyb.40.2 — Bacterial enterotoxins
Family Family familyb.40.2.2 — Superantigen toxins, N-terminal domain
Domain ID domain_idd1qila2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.6 — Superantigen toxins, C-terminal domain
Family Family familyd.15.6.1 — Superantigen toxins, C-terminal domain
Domain ID domain_idd1qilb1
Class classb — All beta proteins
Fold Fold foldb.40 — OB-fold
Superfamily Superfamily superfamilyb.40.2 — Bacterial enterotoxins
Family Family familyb.40.2.2 — Superantigen toxins, N-terminal domain
Domain ID domain_idd1qilb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.6 — Superantigen toxins, C-terminal domain
Family Family familyd.15.6.1 — Superantigen toxins, C-terminal domain
Domain ID domain_idd1qilc1
Class classb — All beta proteins
Fold Fold foldb.40 — OB-fold
Superfamily Superfamily superfamilyb.40.2 — Bacterial enterotoxins
Family Family familyb.40.2.2 — Superantigen toxins, N-terminal domain
Domain ID domain_idd1qilc2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.6 — Superantigen toxins, C-terminal domain
Family Family familyd.15.6.1 — Superantigen toxins, C-terminal domain

CATH v4.4 (6 domains)

Domain ID domain_id1qilA01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily120 —
Domain ID domain_id1qilA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily110 —
Domain ID domain_id1qilB01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily120 —
Domain ID domain_id1qilB02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily110 —
Domain ID domain_id1qilC01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily120 —
Domain ID domain_id1qilC02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily110 —
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7. Citations (4)