SAXSdb — 3cw0

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

Twin-arginine leader-binding protein dmsD

Escherichia coli K-12

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	DMSD_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–208； UniProt 1–204 Author chain B； PDBConstruct 5–208； UniProt 1–204 Author chain C； PDBConstruct 5–208； UniProt 1–204 Author chain D； PDBConstruct 5–208； UniProt 1–204

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	3cw0
Deposition date deposition_date	2008-04-21
Structure title title	E.coli DmsD
Keywords keywords	DmsD, Alpha-helices, Chaperone, Membrane; CHAPERONE
Experimental Method method	X-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.

3cw0__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3cw0__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3cw0__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	17.92 Å
Rg (electron density)	16.38 Å
Total Rg	17.54 Å
Atom count	1647
Residues	203
Excluded volume	29313 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3cw0__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3cw0__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`3cw0__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`3cw0__assembly_4__model_1`	monomeric （1）	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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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d3cw0a_
Class class	a — All alpha proteins
Fold Fold fold	a.184 — TorD-like
Superfamily Superfamily superfamily	a.184.1 — TorD-like
Family Family family	a.184.1.1 — TorD-like

Domain ID domain_id	d3cw0b_
Class class	a — All alpha proteins
Fold Fold fold	a.184 — TorD-like
Superfamily Superfamily superfamily	a.184.1 — TorD-like
Family Family family	a.184.1.1 — TorD-like

Domain ID domain_id	d3cw0c_
Class class	a — All alpha proteins
Fold Fold fold	a.184 — TorD-like
Superfamily Superfamily superfamily	a.184.1 — TorD-like
Family Family family	a.184.1.1 — TorD-like

Domain ID domain_id	d3cw0d_
Class class	a — All alpha proteins
Fold Fold fold	a.184 — TorD-like
Superfamily Superfamily superfamily	a.184.1 — TorD-like
Family Family family	a.184.1.1 — TorD-like

CATH v4.4 (4 domains)

Domain ID domain_id	3cw0A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3480 — TorD-like
Homologous superfamily homologous superfamily	10 — TorD-like

Domain ID domain_id	3cw0B00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3480 — TorD-like
Homologous superfamily homologous superfamily	10 — TorD-like

Domain ID domain_id	3cw0C00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3480 — TorD-like
Homologous superfamily homologous superfamily	10 — TorD-like

Domain ID domain_id	3cw0D00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3480 — TorD-like
Homologous superfamily homologous superfamily	10 — TorD-like

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Unit-cell length a length_a	97.449 Å
Unit-cell length b length_b	97.449 Å
Unit-cell length c length_c	210.042 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	32

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.400 Å
Low-resolution limit resolution_low	88.400 Å
R factor r_factor	0.1968
R_work r_work	0.1945
R_free r_free	0.2397

Description description	Twin-arginine leader-binding protein dmsD
Molecular weight formula_weight	23721.9 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	7097

E.coli DmsD

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

Twin-arginine leader-binding protein dmsD

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

3cw0__assembly_2__model_1

3cw0__assembly_2__model_1 | I(q)

3cw0__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Escherichia coli K-12
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	509

E.coli DmsD

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

Twin-arginine leader-binding protein dmsD

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

3cw0__assembly_2__model_1

3cw0__assembly_2__model_1 | I(q)

3cw0__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)