SAXSdb — 1att

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

ANTITHROMBIN III

Bos taurus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ANT3_BOVIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–429； UniProt 5–433 Author chain B； PDBConstruct 1–429； UniProt 5–433

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	1att
Deposition date deposition_date	1993-03-29
Structure title title	CRYSTAL STRUCTURE OF CLEAVED BOVINE ANTITHROMBIN III AT 3.2 ANGSTROMS RESOLUTION
Keywords keywords	SERINE PROTEINASE INHIBITOR; SERINE PROTEINASE INHIBITOR
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.

1att__assembly_1__model_1

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

Download this curve (.dat)

1att__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1att__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.92 Å
Rg (electron density)	21.66 Å
Total Rg	22.62 Å
Atom count	3354
Residues	421
Excluded volume	59921 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1att__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1att__assembly_2__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 (1)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1atta_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.1 — Serpins
Superfamily Superfamily superfamily	e.1.1 — Serpins
Family Family family	e.1.1.1 — Serpins

Domain ID domain_id	d1attb_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.1 — Serpins
Superfamily Superfamily superfamily	e.1.1 — Serpins
Family Family family	e.1.1.1 — Serpins

CATH v4.4 (4 domains)

Domain ID domain_id	1attA01
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	39 — Alpha-1-antitrypsin; domain 1
Homologous superfamily homologous superfamily	10 — Alpha-1-antitrypsin, domain 1

Domain ID domain_id	1attA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	497 — Antithrombin; Chain I, domain 2
Homologous superfamily homologous superfamily	10 — Antithrombin, subunit I, domain 2

Domain ID domain_id	1attB01
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	39 — Alpha-1-antitrypsin; domain 1
Homologous superfamily homologous superfamily	10 — Alpha-1-antitrypsin, domain 1

Domain ID domain_id	1attB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	497 — Antithrombin; Chain I, domain 2
Homologous superfamily homologous superfamily	10 — Antithrombin, subunit I, domain 2

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Unit-cell length a length_a	91.300 Å
Unit-cell length b length_b	91.300 Å
Unit-cell length c length_c	383.100 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	16

Space group space_group	P 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	3.200 Å
Low-resolution limit resolution_low	8.000 Å
R factor r_factor	0.2120
R_work r_work	0.2120
R_free r_free	—

Description description	ANTITHROMBIN III
Molecular weight formula_weight	48705.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6640

CRYSTAL STRUCTURE OF CLEAVED BOVINE ANTITHROMBIN III AT 3.2 ANGSTROMS RESOLUTION

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

ANTITHROMBIN III

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

1att__assembly_1__model_1

1att__assembly_1__model_1 | I(q)

1att__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (4)

Source organism organism	Bos taurus
Common name common_name	cattle
NCBI taxonomy ID ncbi_taxonomy_id	9913

CRYSTAL STRUCTURE OF CLEAVED BOVINE ANTITHROMBIN III AT 3.2 ANGSTROMS RESOLUTION

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

ANTITHROMBIN III

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

1att__assembly_1__model_1

1att__assembly_1__model_1 | I(q)

1att__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (4)