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4qrm

crystal structure of a binary complex of FliM-FliG middle domains from T.maritima

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

Flagellar motor switch protein FliM

Thermotoga maritima

UniProt Q9WZE6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
10 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
11 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
5 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
6 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
7 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
8 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count
9 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliG × 1 （Q9WY63） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2hp7 4fhr

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3soh 3soh 4iga 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name FLIM_THEMA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–183； UniProt 46–228 Author chain C； PDBConstruct 1–183； UniProt 46–228 Author chain E； PDBConstruct 1–183； UniProt 46–228 Author chain G； PDBConstruct 1–183； UniProt 46–228 Author chain I； PDBConstruct 1–183； UniProt 46–228 Author chain K； PDBConstruct 1–183； UniProt 46–228 Author chain M； PDBConstruct 1–183； UniProt 46–228 Author chain O； PDBConstruct 1–183； UniProt 46–228 Author chain Q； PDBConstruct 1–183； UniProt 46–228 Author chain S； PDBConstruct 1–183； UniProt 46–228 Author chain U； PDBConstruct 1–183； UniProt 46–228

Flagellar motor switch protein FliG

Thermotoga maritima

UniProt Q9WY63

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
10 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
11 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
5 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
6 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
7 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
8 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count
9 Protein heterocomplex Heteromer Protein 2 Flagellar motor switch protein FliM × 1 （Q9WZE6） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1lkv 3ajc 4fhr

3 assemblies

Homodimer
1qc7

1 assemblies

Homotetramer
1lkv

1 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
3soh 3soh 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm 4qrm

17 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name FLIG_THEMA
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 5–75； UniProt 117–187 Author chain D； PDBConstruct 5–75； UniProt 117–187 Author chain F； PDBConstruct 5–75； UniProt 117–187 Author chain H； PDBConstruct 5–75； UniProt 117–187 Author chain J； PDBConstruct 5–75； UniProt 117–187 Author chain L； PDBConstruct 5–75； UniProt 117–187 Author chain N； PDBConstruct 5–75； UniProt 117–187 Author chain P； PDBConstruct 5–75； UniProt 117–187 Author chain R； PDBConstruct 5–75； UniProt 117–187 Author chain T； PDBConstruct 5–75； UniProt 117–187 Author chain V； PDBConstruct 5–75； UniProt 117–187

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_id4qrm
Deposition date deposition_date2014-07-01
Structure title titlecrystal structure of a binary complex of FliM-FliG middle domains from T.maritima
Keywords keywordsFlagellar rotor proteins, PROTEIN BINDING; PROTEIN BINDING
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.

4qrm__assembly_8__model_1

Assembly 8 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4qrm__assembly_8__model_1 | I(q)

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

4qrm__assembly_8__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）21.41 Å
Rg (electron density)20.63 Å
Total Rg21.56 Å
Atom count2071
Residues258
Excluded volume37433 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4qrm__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4qrm__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 4qrm__assembly_3__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 4qrm__assembly_4__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
5 1 4qrm__assembly_5__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
6 1 4qrm__assembly_6__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
7 1 4qrm__assembly_7__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
8 1 4qrm__assembly_8__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
9 1 4qrm__assembly_9__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
10 1 4qrm__assembly_10__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
11 1 4qrm__assembly_11__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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7. Citations (1)