6t8o

Stalled FtsK motor domain bound to dsDNA end

Method: ELECTRON MICROSCOPY

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

DNA translocase FtsK

Pseudomonas aeruginosa PAO1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Homooligomer	Protein 6 DNA 2	dsDNA substrate × 2 ADENOSINE-5'-DIPHOSPHATE × 6	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FTSK_PSEAE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–483； UniProt 247–728 Author chain B； PDBConstruct 2–483； UniProt 247–728 Author chain C； PDBConstruct 2–483； UniProt 247–728 Author chain D； PDBConstruct 2–483； UniProt 247–728 Author chain E； PDBConstruct 2–483； UniProt 247–728 Author chain F； PDBConstruct 2–483； UniProt 247–728

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	6t8o
Deposition date deposition_date	2019-10-24
Structure title title	Stalled FtsK motor domain bound to dsDNA end
Keywords keywords	DNA translocation, DNA motor, RecA fold, Divisome, DNA BINDING PROTEIN; DNA BINDING 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.

6t8o__assembly_1__model_1

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

Download this curve (.dat)

6t8o__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6t8o__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	42.55 Å
Rg (electron density)	42.10 Å
Total Rg	42.29 Å
Atom count	18806
Residues	2400
Excluded volume	337370 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6t8o__assembly_1__model_1`	octameric （8）	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)

Entity 1 Entity 1 polymer

Description description	DNA translocase FtsK
Molecular weight formula_weight	54001.4 kDa
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	18806

MVPDRREQSKAKERLLEREEALAKHMSEREKRPPPKIDPPPSPKAPEPSKRVLKEKQAPLFVDTAVEGTLPPLSLLDPAEVKQKSYSPESLEAMSRLLEIKLKEFGVEVSVDSVHPGPVITRFEIQPAAGVKVSRISNLAKDLARSLAVISVRVVEVIPGKTTVGIEIPNEDRQMVRFSEVLSSPEYDEHKSTVPLALGHDIGGRPIITDLAKMPHLLVAGTTGSGKSVGVNAMLLSILFKSTPSEARLIMIDPKMLELSIYEGIPHLLCPVVTDMKEAANALRWSVAEMERRYRLMAAMGVRNLAGFNRKVKDAEEAGTPLTDPLFRRESPDDEPPQLSTLPTIVVVVDEFADMMMIVGKKVEELIARIAQKARAAGIHLILATQRPSVDVITGLIKANIPTRIAFQVSSKIDSRTILDQGGAEQLLGHGDMLYLPPGTGLPIRVHGAFVSDDEVHRVVEAWKLRGAPDYIEDILAGVDEGGKLHHHHHH

Source Source

Source organism organism	Pseudomonas aeruginosa PAO1
NCBI taxonomy ID ncbi_taxonomy_id	208964
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	dsDNA substrate
Molecular weight formula_weight	4276.8 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	G,H

ATATATATATATAT

Entity 3 Entity 3 non-polymer

Description description	ADENOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	427.2 kDa
Source method src_method	syn
Copy count entity_count	6

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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id	6t8oA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	6t8oB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	6t8oC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oC02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	6t8oD01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	6t8oE01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oE02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	6t8oF01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	980 — Threonyl-tRNA Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6t8oF02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

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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	triclinic

Resolution resolution	3.99 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	53289

Stalled FtsK motor domain bound to dsDNA end

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

DNA translocase FtsK

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

6t8o__assembly_1__model_1

6t8o__assembly_1__model_1 | I(q)

6t8o__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

7. Citations (2)

Stalled FtsK motor domain bound to dsDNA end

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

DNA translocase FtsK

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

6t8o__assembly_1__model_1

6t8o__assembly_1__model_1 | I(q)

6t8o__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

7. Citations (2)