1aqt

EPSILON SUBUNIT OF F1F0-ATP SYNTHASE FROM ESCHERICHIA COLI

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

ATP SYNTHASE

Escherichia coli

UniProt P0A6E6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name ATPE_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–138; UniProt 3–138

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_id1aqt
Deposition date deposition_date1997-07-31
Structure title titleEPSILON SUBUNIT OF F1F0-ATP SYNTHASE FROM ESCHERICHIA COLI
Keywords keywordsHYDROLASE, ATPASE, ATP SYNTHASE, EPSILON SUBUNIT; HYDROLASE
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.

1aqt__assembly_1__model_1

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

Download this curve (.dat)

1aqt__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1aqt__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)21.50 Å
Rg (electron density)20.48 Å
Total Rg21.17 Å
Atom count2054
Residues270
Excluded volume36534 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1aqt__assembly_1__model_1 dimeric (2) 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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1aqta1
Class classa — All alpha proteins
Fold Fold folda.2 — Long alpha-hairpin
Superfamily Superfamily superfamilya.2.10 — Epsilon subunit of F1F0-ATP synthase C-terminal domain
Family Family familya.2.10.1 — Epsilon subunit of F1F0-ATP synthase C-terminal domain
Domain ID domain_idd1aqta2
Class classb — All beta proteins
Fold Fold foldb.93 — Epsilon subunit of F1F0-ATP synthase N-terminal domain
Superfamily Superfamily superfamilyb.93.1 — Epsilon subunit of F1F0-ATP synthase N-terminal domain
Family Family familyb.93.1.1 — Epsilon subunit of F1F0-ATP synthase N-terminal domain

CATH v4.4 (2 domains)

Domain ID domain_id1aqtA01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology15 — ATP Synthase; domain 1
Homologous superfamily homologous superfamily10 — F0F1 ATP synthase delta/epsilon subunit, N-terminal
Domain ID domain_id1aqtA02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily440 — ATP synthase delta/epsilon subunit, C-terminal domain
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7. Citations (2)