SAXSdb — 3f81

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

Dual specificity protein phosphatase 3

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	;2-[(5~{E})-5-[[3-[4-(2-fluoranylphenoxy)phenyl]-1-phenyl-pyrazol-4-yl]methylidene]-4-oxidanylidene-2-sulfanylidene-1,3-thiazolidin-3-yl]ethanesulfonic acid ; × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	;2-[(5~{E})-5-[[3-[4-(2-fluoranylphenoxy)phenyl]-1-phenyl-pyrazol-4-yl]methylidene]-4-oxidanylidene-2-sulfanylidene-1,3-thiazolidin-3-yl]ethanesulfonic acid ; × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	DUS3_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–183； UniProt 3–185 Author chain B； PDBConstruct 1–183； UniProt 3–185

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	3f81
Deposition date deposition_date	2008-11-11
Structure title title	Interaction of VHR with SA3
Keywords keywords	HYDROLASE, PROTEIN DUAL-SPECIFICITY PHOSPHATASE, INHIBITOR, Protein phosphatase; HYDROLASE
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.

3f81__assembly_1__model_1

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

Download this curve (.dat)

3f81__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3f81__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.01 Å
Rg (electron density)	22.20 Å
Total Rg	22.99 Å
Atom count	2812
Residues	358
Excluded volume	49823 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3f81__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3f81__assembly_2__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	Dual specificity protein phosphatase 3
Molecular weight formula_weight	20283.0 kDa
EC 编号 ec_number	3.1.3.48, 3.1.3.16
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	3031

GSFELSVQDLNDLLSDGSGCYSLPSQPCNEVTPRIYVGNASVAQDIPKLQKLGITHVLNAAEGRSFMHVNTNANFYKDSGITYLGIKANDTQEFNLSAYFERAADFIDQALAQKNGRVLVHCREGYSRSPTLVIAYLMMRQKMDVKSALSIVRQNREIGPNDGFLAQLCQLNDRLAKEGKLKP

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	;2-[(5~{E})-5-[[3-[4-(2-fluoranylphenoxy)phenyl]-1-phenyl-pyrazol-4-yl]methylidene]-4-oxidanylidene-2-sulfanylidene-1,3-thiazolidin-3-yl]ethanesulfonic acid ;
Molecular weight formula_weight	581.7 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	219

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d3f81a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.45 — (Phosphotyrosine protein) phosphatases II
Superfamily Superfamily superfamily	c.45.1 — (Phosphotyrosine protein) phosphatases II
Family Family family	c.45.1.1 — Dual specificity phosphatase-like

Domain ID domain_id	d3f81b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.45 — (Phosphotyrosine protein) phosphatases II
Superfamily Superfamily superfamily	c.45.1 — (Phosphotyrosine protein) phosphatases II
Family Family family	c.45.1.1 — Dual specificity phosphatase-like

CATH v4.4 (2 domains)

Domain ID domain_id	3f81A00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

Domain ID domain_id	3f81B00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

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Unit-cell length a length_a	50.406 Å
Unit-cell length b length_b	59.186 Å
Unit-cell length c length_c	60.656 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	98.36 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.1805
R_work r_work	0.1784
R_free r_free	0.2190

Interaction of VHR with SA3

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

Dual specificity protein phosphatase 3

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

3f81__assembly_1__model_1

3f81__assembly_1__model_1 | I(q)

3f81__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Interaction of VHR with SA3

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

Dual specificity protein phosphatase 3

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

3f81__assembly_1__model_1

3f81__assembly_1__model_1 | I(q)

3f81__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)