1ehs

THE STRUCTURE OF ESCHERICHIA COLI HEAT-STABLE ENTEROTOXIN B BY NUCLEAR MAGNETIC RESONANCE AND CIRCULAR DICHROISM

Method: SOLUTION NMR

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

HEAT-STABLE ENTEROTOXIN B

Escherichia coli

UniProt P22542

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name HSTI_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–48; UniProt 24–71

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_id1ehs
Deposition date deposition_date1995-06-13
Structure title titleTHE STRUCTURE OF ESCHERICHIA COLI HEAT-STABLE ENTEROTOXIN B BY NUCLEAR MAGNETIC RESONANCE AND CIRCULAR DICHROISM
Keywords keywordsHEAT-STABLE, ENTEROTOXIN, DISULFIDE; ENTEROTOXIN
Experimental Method methodSOLUTION NMR

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.

1ehs__assembly_1__model_1

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

Download this curve (.dat)

1ehs__assembly_1__model_1 | I(q)

10-2 10-1 104 105 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1ehs__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)12.43 Å
Rg (electron density)11.53 Å
Total Rg12.75 Å
Atom count704
Residues48
Excluded volume6270 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1ehs__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 (1)

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1ehsa_
Class classg — Small proteins
Fold Fold foldg.2 — Toxic hairpin
Superfamily Superfamily superfamilyg.2.1 — Heat-stable enterotoxin B
Family Family familyg.2.1.1 — Heat-stable enterotoxin B

CATH v4.4 (1 domains)

Domain ID domain_id1ehsA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology10 — Heat-Stable Enterotoxin B
Homologous superfamily homologous superfamily10 — Heat-stable enterotoxin B

7. Citations (1)