SAXSdb — 4a2a

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

CELL DIVISION PROTEIN FTSA, PUTATIVE

THERMOTOGA MARITIMA

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	CELL DIVISION PROTEIN FTSZ × 1 （O08398） ADENOSINE-5'-TRIPHOSPHATE × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	CELL DIVISION PROTEIN FTSZ × 1 （O08398） ADENOSINE-5'-TRIPHOSPHATE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9WZU0_THEMA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–419； UniProt 1–419 Author chain B； PDBConstruct 1–419； UniProt 1–419

CELL DIVISION PROTEIN FTSZ

OrganismNot specified

UniProt O08398

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	CELL DIVISION PROTEIN FTSA, PUTATIVE × 1 （Q9WZU0） ADENOSINE-5'-TRIPHOSPHATE × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	CELL DIVISION PROTEIN FTSA, PUTATIVE × 1 （Q9WZU0） ADENOSINE-5'-TRIPHOSPHATE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FTSZ_THEMA
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–16； UniProt 336–351 Author chain D； PDBConstruct 1–16； UniProt 336–351

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	4a2a
Deposition date deposition_date	2011-09-23
Structure title title	Thermotoga maritima FtsA:FtsZ(336-351)
Keywords keywords	CELL CYCLE, ACTIN, DIVISOME; CELL CYCLE
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.

4a2a__assembly_1__model_1

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

Download this curve (.dat)

4a2a__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4a2a__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.98 Å
Rg (electron density)	23.16 Å
Total Rg	24.02 Å
Atom count	3068
Residues	386
Excluded volume	55083 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4a2a__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4a2a__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 (4)

Entity 1 Entity 1 polymer

Description description	CELL DIVISION PROTEIN FTSA, PUTATIVE
Molecular weight formula_weight	47075.7 kDa
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	6634

MIDLSKTVFYTSIDIGSRYIKGLVLGKRDQEWEALAFSSVKSRGLDEGEIKDAIAFKESVNTLLKELEEQLQKSLRSDFVISFSSVSFEREDTVIERDFGEEKRSITLDILSEMQSEALEKLKENGKTPLHIFSKRYLLDDERIVFNPLDMKASKIAIEYTSIVVPLKVYEMFYNFLQDTVKSPFQLKSSLVSTAEGVLTTPEKDRGVVVVNLGYNFTGLIAYKNGVPIKISYVPVGMKHVIKDVSAVLDTSFEESERLIITHGNAVYNDLKEEEIQYRGLDGNTIKTTTAKKLSVIIHARLREIMSKSKKFFREVEAKIVEEGEIGIPGGVVLTGGGAKIPRINELATEVFKSPVRTGCYANSDRPSIINADEVANDPSFAAAFGNVFAVSENPYEETPVKSENPLKKIFRLFKELME

Source Source

Source organism organism	THERMOTOGA MARITIMA
NCBI taxonomy ID ncbi_taxonomy_id	2336
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	CELL DIVISION PROTEIN FTSZ
Molecular weight formula_weight	1780.0 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,D

EGDIPAIYRYGLEGLL

Entity 3 Entity 3 non-polymer

Description description	ADENOSINE-5'-TRIPHOSPHATE
Molecular weight formula_weight	507.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	459

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	4a2aA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	4a2aA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	110 —

Domain ID domain_id	4a2aA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	4a2aA04
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — ATPase, substrate binding domain, subdomain 4

Domain ID domain_id	4a2aB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	4a2aB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	110 —

Domain ID domain_id	4a2aB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	4a2aB04
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — ATPase, substrate binding domain, subdomain 4

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Unit-cell length a length_a	56.719 Å
Unit-cell length b length_b	75.718 Å
Unit-cell length c length_c	100.265 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	93.64 °
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	1.800 Å
Low-resolution limit resolution_low	47.980 Å
R factor r_factor	0.2127
R_work r_work	0.2110
R_free r_free	0.2433

Thermotoga maritima FtsA:FtsZ(336-351)

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

CELL DIVISION PROTEIN FTSA, PUTATIVE

State in the Current Structure

Other States of the Same Protein in the Database

CELL DIVISION PROTEIN FTSZ

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

4a2a__assembly_1__model_1

4a2a__assembly_1__model_1 | I(q)

4a2a__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 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

Thermotoga maritima FtsA:FtsZ(336-351)

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

CELL DIVISION PROTEIN FTSA, PUTATIVE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

CELL DIVISION PROTEIN FTSZ

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

4a2a__assembly_1__model_1

4a2a__assembly_1__model_1 | I(q)

4a2a__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 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)