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3j0r

Model of a type III secretion system needle based on a 7 Angstrom resolution cryoEM map

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

Protein mxiH

OrganismNot specified

UniProt P0A223

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 22 No other associated polymer Consistent with protein count
2 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count
3 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2ca5 2ca5 3j0r 3j0r

4 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers
2v6l 3j0r 6zni

3 assemblies

Heteromeric or nucleic-acid complex
6rwy 8axk

2 assemblies

View Construct and Data Evidence
UniProt name MXIH_SHIFL
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–82； UniProt 2–83

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_id3j0r
Deposition date deposition_date2011-11-03
Structure title titleModel of a type III secretion system needle based on a 7 Angstrom resolution cryoEM map
Keywords keywordshelical assembly, PROTEIN TRANSPORT; PROTEIN TRANSPORT
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.

3j0r__assembly_1__model_1

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

Download this curve (.dat)

3j0r__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.

3j0r__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）39.28 Å
Rg (electron density)39.35 Å
Total Rg39.73 Å
Atom count14168
Residues1804
Excluded volume250800 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3j0r__assembly_1__model_1 helical （22） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3j0r__assembly_2__model_1 monomeric （1） Excluded — —
Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
3 1 3j0r__assembly_3__model_1 monomeric （1） Excluded — —
Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (1)

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7. Citations (1)