SAXSdb — 2xkj

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

TOPOISOMERASE IV

ACINETOBACTER BAUMANNII

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 2	SULFATE ION × 4 GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B0V9T6_ACIBY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain E； PDBConstruct 2–259； UniProt 370–627

TOPOISOMERASE IV

ACINETOBACTER BAUMANNII

UniProt B0VP98

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 2	SULFATE ION × 4 GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B0VP98_ACIBS
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain E； PDBConstruct 265–767； UniProt 1–503

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	2xkj
Deposition date deposition_date	2010-07-08
Structure title title	CRYSTAL STRUCTURE OF CATALYTIC CORE OF A. BAUMANNII TOPO IV (PARE- PARC FUSION TRUNCATE)
Keywords keywords	ISOMERASE, TYPE IIA TOPOISOMERASE; ISOMERASE
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.

2xkj__assembly_1__model_1

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

Download this curve (.dat)

2xkj__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2xkj__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	38.55 Å
Rg (electron density)	37.77 Å
Total Rg	38.24 Å
Atom count	11288
Residues	1442
Excluded volume	201360 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2xkj__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 (4)

Entity 1 Entity 1 polymer

Description description	TOPOISOMERASE IV
Molecular weight formula_weight	86085.8 kDa
EC 编号 ec_number	5.99.1.-
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E
Atom count atom_count	6323

MEMAISKAGRRLKAAKKVERKKIVSGPALPGKLADCVGQTREESELFIVEGDSAGGSAKQARDKNFQAIMPIRGKILNTWEVSSDEVLASQEVHDIAIAIGVDPGSDDLSELRYGKICILADADSDGLHIATLLCALFVKHFPALVEEGHLYVAMPPLFRIDIGKDVHYALDDEELETILKNVKGNKNPQITRFKGLGEMNAIQLRETTMDPNTRRLVQLDLDDAHLTAGLLDKLLAKKRAADRKQWLEQKGNLADITVEDKLTMTSLAHHATENRSVAEFTEQAYLNYAMYVIMDRALPHISDGLKPVQRRIVYAMSELGLKSSGKPKKSARTVGDVLGKYHPHGDSACYEAMVLMAQPFSYRYPLIEGQGNWGSPDDPKSFAAMRYTEAKLSAYSELLLSELGQGTSEWQDNFDGSLKEPITLPARVPNILLNGTTGIAVGMATDIPPHNLREVVKGTIALIRNPQTSDEKLAEYIPAPDLPTKAEIITPPEELLKIQTTGRGSYRMRAVYTIEKNEIVITELPYQVSGSKVITQIADQMQAKKLPLVVDVRDESDHENPTRLVIVLRSNRIDAEAVMSHLFATTDLESSYRVNLNMIGEDGRPQVKSIRRILLEWIEIRKKTVTRRLQYHLNRIEKRLHILAGLLIAYLDIDTVIRIIREEDQPKPVLMEHFNIDEIQAEAILELKLRHLAKLEEMEIRHEQDELSAKAAIIREQLENPESLKNLIISELKEDAKKFGDERRSPIVARAEAVQIKEQDLMPAET

Source Source

Source organism organism	ACINETOBACTER BAUMANNII
NCBI taxonomy ID ncbi_taxonomy_id	470
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

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	534

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	2xkjE01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	670 —

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Unit-cell length a length_a	163.389 Å
Unit-cell length b length_b	74.433 Å
Unit-cell length c length_c	80.211 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	107.96 °
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	2.200 Å
Low-resolution limit resolution_low	24.909 Å
R factor r_factor	0.1634
R_work r_work	0.1608
R_free r_free	0.2129

CRYSTAL STRUCTURE OF CATALYTIC CORE OF A. BAUMANNII TOPO IV (PARE- PARC FUSION TRUNCATE)

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

TOPOISOMERASE IV

State in the Current Structure

Other States of the Same Protein in the Database

TOPOISOMERASE IV

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

2xkj__assembly_1__model_1

2xkj__assembly_1__model_1 | I(q)

2xkj__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF CATALYTIC CORE OF A. BAUMANNII TOPO IV (PARE- PARC FUSION TRUNCATE)

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

TOPOISOMERASE IV

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

TOPOISOMERASE IV

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

2xkj__assembly_1__model_1

2xkj__assembly_1__model_1 | I(q)

2xkj__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)