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3e1m

Crystal structure of E. coli Bacterioferritin (BFR) obtained after soaking APO-BFR crystals for 2.5 minutes in FE2+ (2.5M FE(II)-BFR)

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

BACTERIOFERRITIN

ESCHERICHIA COLI

UniProt P0ABD3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 24 SULFATE ION × 32 FE (II) ION × 72 PROTOPORPHYRIN IX CONTAINING FE × 12 water × 24 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
3e2c 4cvr 4cvs 4cvt

4 assemblies

Homotetramer

None

Other homooligomers
1bcf 1bfr 2htn 2vxi 2y3q 3e1j 3e1l 3e1m 3e1n 3e1o 3e1p 3e1q

17 assemblies; showing the first 12

Heteromeric or nucleic-acid complex
5xgo

1 assemblies

View Construct and Data Evidence
UniProt name BFR_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–158； UniProt 1–158 Author chain B； PDBConstruct 1–158； UniProt 1–158 Author chain C； PDBConstruct 1–158； UniProt 1–158 Author chain D； PDBConstruct 1–158； UniProt 1–158 Author chain E； PDBConstruct 1–158； UniProt 1–158 Author chain F； PDBConstruct 1–158； UniProt 1–158 Author chain G； PDBConstruct 1–158； UniProt 1–158 Author chain H； PDBConstruct 1–158； UniProt 1–158 Author chain I； PDBConstruct 1–158； UniProt 1–158 Author chain J； PDBConstruct 1–158； UniProt 1–158 Author chain K； PDBConstruct 1–158； UniProt 1–158 Author chain L； PDBConstruct 1–158； UniProt 1–158

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_id3e1m
Deposition date deposition_date2008-08-04
Structure title titleCrystal structure of E. coli Bacterioferritin (BFR) obtained after soaking APO-BFR crystals for 2.5 minutes in FE2+ (2.5M FE(II)-BFR)
Keywords keywordsBACTERIOFERRITIN. RHOMBIC DODECAHEDRAL SUPERSTRUCTURE., HEME, IRON, IRON STORAGE, METAL-BINDING, METAL BINDING PROTEIN; METAL BINDING PROTEIN
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.

3e1m__assembly_1__model_1

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

Download this curve (.dat)

3e1m__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3e1m__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）51.62 Å
Rg (electron density)50.98 Å
Total Rg51.29 Å
Atom count31876
Residues3792
Excluded volume566710 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3e1m__assembly_1__model_1 24-meric （24） 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 (5)

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd3e1ma_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mb_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mc_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1md_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1me_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mf_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mg_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mh_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mi_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mj_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1mk_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin
Domain ID domain_idd3e1ml_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin

CATH v4.4 (12 domains)

Domain ID domain_id3e1mA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mB00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mC00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mD00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mE00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mF00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mG00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mH00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mI00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mJ00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mK00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
Domain ID domain_id3e1mL00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle
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7. Citations (1)