1tzq

Crystal structure of the equinatoxin II 8-69 double cysteine mutant

Method: X-RAY DIFFRACTION

1. Protein Identity and Related Structures Protein Identity & Related Structures

Equinatoxin II

Actinia equina

UniProt P61914

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

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name EQT2_ACTEQ
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–175; UniProt 40–214

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.

2. Structure Basics 2. Structure Basics

Entry ID entry_id1tzq
Deposition date deposition_date2004-07-11
Structure title titleCrystal structure of the equinatoxin II 8-69 double cysteine mutant
Keywords keywordsbeta-sandwich, TOXIN; TOXIN
Experimental Method methodX-RAY DIFFRACTION

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.

1tzq__assembly_1__model_1

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

Download this curve (.dat)

1tzq__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.

1tzq__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)16.43 Å
Rg (electron density)15.06 Å
Total Rg16.24 Å
Atom count1373
Residues175
Excluded volume24311 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1tzq__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (2)

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1tzqa_
Class classb — All beta proteins
Fold Fold foldb.97 — Cytolysin/lectin
Superfamily Superfamily superfamilyb.97.1 — Cytolysin/lectin
Family Family familyb.97.1.1 — Anemone pore-forming cytolysin

CATH v4.4 (1 domains)

Domain ID domain_id1tzqA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology270 — Mutm (Fpg) Protein; Chain: A, domain 2
Homologous superfamily homologous superfamily20 — Cytolysin/lectin

7. Citations (1)