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9rqi

Cryo-EM structure of Shigella flexneri LptDE bound by phage RBP reveals N-terminal strand insertion into lateral gate

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

LPS-assembly protein LptD

Shigella flexneri

UniProt Q83SQ0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 LPS-assembly lipoprotein LptE × 1 （Q83LX4） Tail fiber protein × 1 （A0AAE8B389） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
4q35 9i92 9i93 9i94 9i95 9i96 9i97 9i98 9q8n 9rps 9rpt 9rpw

13 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name LPTD_SHIFL
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 3–784； UniProt 3–784

LPS-assembly lipoprotein LptE

Shigella flexneri

UniProt Q83LX4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 LPS-assembly protein LptD × 1 （Q83SQ0） Tail fiber protein × 1 （A0AAE8B389） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
4q35 9i92 9i93 9i94 9i95 9i96 9i97 9i98 9q8n 9rpr 9rps 9rpt

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name LPTE_SHIFL
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–193； UniProt 1–193

Tail fiber protein

Escherichia phage Oekolampad

UniProt A0AAE8B389

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 LPS-assembly protein LptD × 1 （Q83SQ0） LPS-assembly lipoprotein LptE × 1 （Q83LX4） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
9rpt 9rpw 9rqi

3 assemblies

View Construct and Data Evidence
UniProt name A0AAE8B389_9CAUD
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–321； UniProt 1–321

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_id9rqi
Deposition date deposition_date2025-06-25
Last revision last_revision2025-12-10
Structure title titleCryo-EM structure of Shigella flexneri LptDE bound by phage RBP reveals N-terminal strand insertion into lateral gate
Keywords keywordslipopolysaccharide transport, receptor-binding protein, outer membrane complex, beta-barrel, bacteriophage, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

9rqi__assembly_1__model_1

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

Download this curve (.dat)

9rqi__assembly_1__model_1 | I(q)

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

9rqi__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）33.48 Å
Rg (electron density)33.30 Å
Total Rg33.97 Å
Atom count7899
Residues987
Excluded volume139000 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9rqi__assembly_1__model_1 trimeric （3） 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 (3)

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7. Citations (1)