SAXSdb — 1n1c

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

TorA specific chaperone

Shewanella massilia

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	2,3-DIHYDROXY-1,4-DITHIOBUTANE × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TORD_SHEMA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–209； UniProt 1–209 Author chain B； PDBConstruct 1–209； UniProt 1–209

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	1n1c
Deposition date deposition_date	2002-10-17
Structure title title	Crystal Structure Of The Dimeric TorD Chaperone From Shewanella Massilia
Keywords keywords	CHAPERONE, TORD, 3D-domain swapping; 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.

1n1c__assembly_1__model_1

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

Download this curve (.dat)

1n1c__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1n1c__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.57 Å
Rg (electron density)	25.92 Å
Total Rg	26.63 Å
Atom count	3092
Residues	391
Excluded volume	54982 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1n1c__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Description description	TorA specific chaperone
Molecular weight formula_weight	24654.3 kDa
Mutation mutation	H8P/F147C/F163V
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3275

MSQVDINPARALVYQLLSSLFAREVDEQRLKELTSEAAQQFWEQLSLEANFTQSVDKIRSTLNGIKDDEALLELAADYCGLFLVGTKHSASPYASLYLSGEDEPLLFGEQHQQMSEFLHQSKLQVQSHFPEPADHLAVMLAYMAHLCCHSENSVQLSFLQTCVNSWLAKFINHLTQCNKNGFYSAVATLTLAWVKQDIAQLEPAVAIISLEHHHHHH

Source Source

Source organism organism	Shewanella massilia
NCBI taxonomy ID ncbi_taxonomy_id	76854
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	2,3-DIHYDROXY-1,4-DITHIOBUTANE
Molecular weight formula_weight	154.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	144

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1n1ca1
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	d1n1ca2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1n1cb1
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	d1n1cb2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id	1n1cA01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily	1820 —

Domain ID domain_id	1n1cA02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1280 — Monooxygenase
Homologous superfamily homologous superfamily	20 — HscB, C-terminal domain

Domain ID domain_id	1n1cB01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily	1820 —

Domain ID domain_id	1n1cB02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1280 — Monooxygenase
Homologous superfamily homologous superfamily	20 — HscB, C-terminal domain

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Unit-cell length a length_a	65.958 Å
Unit-cell length b length_b	93.441 Å
Unit-cell length c length_c	95.136 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.400 Å
Low-resolution limit resolution_low	19.960 Å
R factor r_factor	0.2240
R_work r_work	0.2240
R_free r_free	0.2550

Crystal Structure Of The Dimeric TorD Chaperone From Shewanella Massilia

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

TorA specific chaperone

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

1n1c__assembly_1__model_1

1n1c__assembly_1__model_1 | I(q)

1n1c__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (3)

Crystal Structure Of The Dimeric TorD Chaperone From Shewanella Massilia

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

TorA specific chaperone

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

1n1c__assembly_1__model_1

1n1c__assembly_1__model_1 | I(q)

1n1c__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (3)