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6ye8

E.coli's Putrescine receptor PotF complexed with Spermidine

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

Putrescine-binding periplasmic protein

Escherichia coli K-12

UniProt P31133

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 SPERMIDINE × 1 (2R)-1-methoxypropan-2-amine × 3 (2~{S})-1-(2-methoxyethoxy)propan-2-amine × 1 CHLORIDE ION × 1 water × 1 Consistent with protein count
2 Protein monomer Monomer Protein 1 SPERMIDINE × 1 (2R)-1-methoxypropan-2-amine × 4 (2~{S})-1-(2-methoxyethoxy)propan-2-amine × 1 CHLORIDE ION × 1 SULFATE ION × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1a99 1a99 1a99 1a99 6ye0 6ye0 6ye6 6ye6 6ye7 6ye7 6ye8 6ye8

27 assemblies; showing the first 12

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name POTF_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–344； UniProt 27–370 Author chain B； PDBConstruct 1–344； UniProt 27–370

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_id6ye8
Deposition date deposition_date2020-03-24
Structure title titleE.coli's Putrescine receptor PotF complexed with Spermidine
Keywords keywordsPeriplasmic binding protein, E.coli, Spermidine, TRANSPORT PROTEIN; TRANSPORT 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.

6ye8__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6ye8__assembly_2__model_1 | I(q)

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

6ye8__assembly_2__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）21.07 Å
Rg (electron density)19.94 Å
Total Rg21.04 Å
Atom count5446
Residues340
Excluded volume48843 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6ye8__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 6ye8__assembly_2__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 (7)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6ye8a_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like
Domain ID domain_idd6ye8b_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like
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7. Citations (1)