SAXSdb — 3hts

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

HEAT SHOCK TRANSCRIPTION FACTOR

Kluyveromyces lactis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Homooligomer	Protein 2 DNA 2	5'-D(GPGPTPTPCPTPAPGPAPAPCPC)-3' × 2 GLYCEROL × 2 water × 4	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HSF_KLULA
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–102； UniProt 183–284

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	3hts
Deposition date deposition_date	1998-11-16
Structure title title	HEAT SHOCK TRANSCRIPTION FACTOR/DNA COMPLEX
Keywords keywords	TRANSCRIPTION REGULATION, DNA-BINDING PROTEIN, COMPLEX (WINGED HELIX_TURN_ HELIX-DNA), TRANSCRIPTION-DNA COMPLEX; TRANSCRIPTION/DNA
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.

3hts__assembly_1__model_1

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

Download this curve (.dat)

3hts__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3hts__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.70 Å
Rg (electron density)	17.91 Å
Total Rg	18.84 Å
Atom count	1906
Residues	188
Excluded volume	32058 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3hts__assembly_1__model_1`	tetrameric （4）	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	5'-D(GPGPTPTPCPTPAPGPAPAPCPC)-3'
Molecular weight formula_weight	3662.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	A
Atom count atom_count	1023

GGTTCTAGAACC

Entity 2 Entity 2 polymer

Description description	HEAT SHOCK TRANSCRIPTION FACTOR
Molecular weight formula_weight	11941.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GSRRASVGSMARPAFVNKLWSMVNDKSNEKFIHWSTSGESIVVPNRERFVQEVLPKYFKHSNFASFVRQLNMYGWHKVQDVKSGSMLSNNDSRWEFENERHA

Source Source

Source organism organism	Kluyveromyces lactis
NCBI taxonomy ID ncbi_taxonomy_id	28985
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	70

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d3htsb_
Class class	a — All alpha proteins
Fold Fold fold	a.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamily	a.4.5 — 'Winged helix' DNA-binding domain
Family Family family	a.4.5.22 — Heat-shock transcription factor

CATH v4.4 (1 domains)

Domain ID domain_id	3htsB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

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Unit-cell length a length_a	62.690 Å
Unit-cell length b length_b	54.900 Å
Unit-cell length c length_c	41.060 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	122.44 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	1.750 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2080
R_free r_free	0.2450

HEAT SHOCK TRANSCRIPTION FACTOR/DNA COMPLEX

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

HEAT SHOCK TRANSCRIPTION FACTOR

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

3hts__assembly_1__model_1

3hts__assembly_1__model_1 | I(q)

3hts__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)

HEAT SHOCK TRANSCRIPTION FACTOR/DNA COMPLEX

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

HEAT SHOCK TRANSCRIPTION FACTOR

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

3hts__assembly_1__model_1

3hts__assembly_1__model_1 | I(q)

3hts__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)