SAXSdb — 8xp0

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Flagellar motor switch protein FliG

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 18	Flagellar M-ring protein × 3 （P15928） Flagellar motor switch protein FliM × 3 （P26418） Flagellar motor switch protein FliN × 9 （P26419）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FLIG_SALTY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain M； PDBConstruct 1–331； UniProt 1–331 Author chain S； PDBConstruct 1–331； UniProt 1–331 Author chain Y； PDBConstruct 1–331； UniProt 1–331

Flagellar M-ring protein

OrganismNot specified

UniProt P15928

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 18	Flagellar motor switch protein FliG × 3 （P0A1J9） Flagellar motor switch protein FliM × 3 （P26418） Flagellar motor switch protein FliN × 9 （P26419）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FLIF_SALTY
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain N； PDBConstruct 1–560； UniProt 1–560 Author chain T； PDBConstruct 1–560； UniProt 1–560 Author chain Z； PDBConstruct 1–560； UniProt 1–560

Flagellar motor switch protein FliM

OrganismNot specified

UniProt P26418

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 18	Flagellar motor switch protein FliG × 3 （P0A1J9） Flagellar M-ring protein × 3 （P15928） Flagellar motor switch protein FliN × 9 （P26419）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FLIM_SALTY
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain O； PDBConstruct 1–334； UniProt 1–334 Author chain U； PDBConstruct 1–334； UniProt 1–334 Author chain a； PDBConstruct 1–334； UniProt 1–334

Flagellar motor switch protein FliN

OrganismNot specified

UniProt P26419

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 18	Flagellar motor switch protein FliG × 3 （P0A1J9） Flagellar M-ring protein × 3 （P15928） Flagellar motor switch protein FliM × 3 （P26418）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FLIN_SALTY
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain P； PDBConstruct 1–137； UniProt 1–137 Author chain Q； PDBConstruct 1–137； UniProt 1–137 Author chain R； PDBConstruct 1–137； UniProt 1–137 Author chain V； PDBConstruct 1–137； UniProt 1–137 Author chain W； PDBConstruct 1–137； UniProt 1–137 Author chain X； PDBConstruct 1–137； UniProt 1–137 Author chain b； PDBConstruct 1–137； UniProt 1–137 Author chain c； PDBConstruct 1–137； UniProt 1–137 Author chain d； PDBConstruct 1–137； UniProt 1–137

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_id	8xp0
Deposition date deposition_date	2024-01-02
Structure title title	Cryo-EM structure of the protomers of the C ring in the CCW state
Keywords keywords	C ring, flagellum, flagellar motor, motor, switch complex, rotation, FliF, FliG, FliM, FliN, MOTOR PROTEIN; MOTOR PROTEIN
Experimental Method method	ELECTRON 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.

8xp0__assembly_1__model_1

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

Download this curve (.dat)

8xp0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8xp0__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	61.25 Å
Rg (electron density)	61.50 Å
Total Rg	61.67 Å
Atom count	21156
Residues	2676
Excluded volume	379620 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8xp0__assembly_1__model_1`	octadecameric （18）	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 (4)

Entity 1 Entity 1 polymer

Description description	Flagellar motor switch protein FliG
Molecular weight formula_weight	36891.0 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M,S,Y
Atom count atom_count	21156

MSNLSGTDKSVILLMTIGEDRAAEVFKHLSTREVQALSTAMANVRQISNKQLTDVLSEFEQEAEQFAALNINANEYLRSVLVKALGEERASSLLEDILETRDTTSGIETLNFMEPQSAADLIRDEHPQIIATILVHLKRSQAADILALFDERLRHDVMLRIATFGGVQPAALAELTEVLNGLLDGQNLKRSKMGGVRTAAEIINLMKTQQEEAVITAVREFDGELAQKIIDEMFLFENLVDVDDRSIQRLLQEVDSESLLIALKGAEPPLREKFLRNMSQRAADILRDDLANRGPVRLSQVENEQKAILLIVRRLAETGEMVIGSGEDTYV

Entity 2 Entity 2 polymer

Description description	Flagellar M-ring protein
Molecular weight formula_weight	61295.6 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N,T,Z

MSATASTATQPKPLEWLNRLRANPRIPLIVAGSAAVAIVVAMVLWAKTPDYRTLFSNLSDQDGGAIVAQLTQMNIPYRFANGSGAIEVPADKVHELRLRLAQQGLPKGGAVGFELLDQEKFGISQFSEQVNYQRALEGELARTIETLGPVKSARVHLAMPKPSLFVREQKSPSASVTVTLEPGRALDEGQISAVVHLVSSAVAGLPPGNVTLVDQSGHLLTQSNTSGRDLNDAQLKFANDVESRIQRRIEAILSPIVGNGNVHAQVTAQLDFANKEQTEEHYSPNGDASKATLRSRQLNISEQVGAGYPGGVPGALSNQPAPPNEAPIATPPTNQQNAQNTPQTSTSTNSNSAGPRSTQRNETSNYEVDRTIRHTKMNVGDIERLSVAVVVNYKTLADGKPLPLTADQMKQIEDLTREAMGFSDKRGDTLNVVNSPFSAVDNTGGELPFWQQQSFIDQLLAAGRWLLVLVVAWILWRKAVRPQLTRRVEEAKAAQEQAQVRQETEEAVEVRLSKDEQLQQRRANQRLGAEVMSQRIREMSDNDPRVVALVIRQWMSNDHE

Entity 3 Entity 3 polymer

Description description	Flagellar motor switch protein FliM
Molecular weight formula_weight	37901.1 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O,U,a

MGDSILSQAEIDALLNGDSDTKDEPTPGIASDSDIRPYDPNTQRRVVRERLQALEIINERFARQFRMGLFNLLRRSPDITVGAIRIQPYHEFARNLPVPTNLNLIHLKPLRGTGLVVFSPSLVFIAVDNLFGGDGRFPTKVEGREFTHTEQRVINRMLKLALEGYSDAWKAINPLEVEYVRSEMQVKFTNITTSPNDIVVNTPFHVEIGNLTGEFNICLPFSMIEPLRELLVNPPLENSRHEDQNWRDNLVRQVQHSELELVANFADIPLRLSQILKLKPGDVLPIEKPDRIIAHVDGVPVLTSQYGTVNGQYALRVEHLINPILNSLNEEQPK

Entity 4 Entity 4 polymer

Description description	Flagellar motor switch protein FliN
Molecular weight formula_weight	14801.8 kDa
Source method src_method	nat
Copy count entity_count	9

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P,Q,R,V,W,X,b,c,d

MSDMNNPSDENTGALDDLWADALNEQKATTTKSAADAVFQQLGGGDVSGAMQDIDLIMDIPVKLTVELGRTRMTIKELLRLTQGSVVALDGLAGEPLDILINGYLIAQGEVVVVADKYGVRITDIITPSERMRRLSR

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	4.00 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	667318

Cryo-EM structure of the protomers of the C ring in the CCW state

1. Protein Identity and Related Structures Protein Identity & Related Structures

Flagellar motor switch protein FliG

State in the Current Structure

Other States of the Same Protein in the Database

Flagellar M-ring protein

State in the Current Structure

Other States of the Same Protein in the Database

Flagellar motor switch protein FliM

State in the Current Structure

Other States of the Same Protein in the Database

Flagellar motor switch protein FliN

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8xp0__assembly_1__model_1

8xp0__assembly_1__model_1 | I(q)

8xp0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

7. Citations (1)

Cryo-EM structure of the protomers of the C ring in the CCW state

1. Protein Identity and Related Structures Protein Identity & Related Structures

Flagellar motor switch protein FliG

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Flagellar M-ring protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Flagellar motor switch protein FliM

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Flagellar motor switch protein FliN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8xp0__assembly_1__model_1

8xp0__assembly_1__model_1 | I(q)

8xp0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

7. Citations (1)