SAXSdb — 1fwt

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

2-DEHYDRO-3-DEOXYPHOSPHOOCTONATE ALDOLASE

Aquifex aeolicus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	CADMIUM ION × 4 PHOSPHOENOLPYRUVATE × 4 ERYTHOSE-4-PHOSPHATE × 2 PHOSPHATE ION × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KDSA_AQUAE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–267； UniProt 1–267 Author chain B； PDBConstruct 1–267； UniProt 1–267

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	1fwt
Deposition date deposition_date	2000-09-24
Structure title title	AQUIFEX AEOLICUS KDO8P SYNTHASE IN COMPLEX WITH PEP, E4P AND CADMIUM
Keywords keywords	kdo8ps, kdo8p, kdo, PEP, A5P, beta/alpha barrel, LYASE; LYASE
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.

1fwt__assembly_1__model_1

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

Download this curve (.dat)

1fwt__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1fwt__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	30.61 Å
Rg (electron density)	29.99 Å
Total Rg	30.66 Å
Atom count	8226
Residues	1034
Excluded volume	148130 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1fwt__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 (6)

Entity 1 Entity 1 polymer

Description description	2-DEHYDRO-3-DEOXYPHOSPHOOCTONATE ALDOLASE
Molecular weight formula_weight	29774.4 kDa
EC 编号 ec_number	4.1.2.16
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	4336

MEKFLVIAGPCAIESEELLLKVGEEIKRLSEKFKEVEFVFKSSFDKANRSSIHSFRGHGLEYGVKALRKVKEEFGLKITTDIHESWQAEPVAEVADIIQIPAFLCRQTDLLLAAAKTGRAVNVKKGQFLAPWDTKNVVEKLKFGGAKEIYLTERGTTFGYNNLVVDFRSLPIMKQWAKVIYDATHSVQLPGGLGDKSGGMREFIFPLIRAAVAVGCDGVFMETHPEPEKALSDASTQLPLSQLEGIIEAILEIREVASKYYETIPVK

Source Source

Source organism organism	Aquifex aeolicus
NCBI taxonomy ID ncbi_taxonomy_id	63363
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CADMIUM ION
Molecular weight formula_weight	112.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	PHOSPHOENOLPYRUVATE
Molecular weight formula_weight	168.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	ERYTHOSE-4-PHOSPHATE
Molecular weight formula_weight	200.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	PHOSPHATE ION
Molecular weight formula_weight	95.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	223

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1fwta_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.10 — Aldolase
Family Family family	c.1.10.4 — Class I DAHP synthetase

Domain ID domain_id	d1fwtb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.10 — Aldolase
Family Family family	c.1.10.4 — Class I DAHP synthetase

CATH v4.4 (2 domains)

Domain ID domain_id	1fwtA00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	1fwtB00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

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Unit-cell length a length_a	84.164 Å
Unit-cell length b length_b	84.164 Å
Unit-cell length c length_c	159.737 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	25.450 Å
R factor r_factor	—
R_work r_work	0.1970
R_free r_free	0.2220

AQUIFEX AEOLICUS KDO8P SYNTHASE IN COMPLEX WITH PEP, E4P AND CADMIUM

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

2-DEHYDRO-3-DEOXYPHOSPHOOCTONATE ALDOLASE

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

1fwt__assembly_1__model_1

1fwt__assembly_1__model_1 | I(q)

1fwt__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 (6)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

AQUIFEX AEOLICUS KDO8P SYNTHASE IN COMPLEX WITH PEP, E4P AND CADMIUM

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

2-DEHYDRO-3-DEOXYPHOSPHOOCTONATE ALDOLASE

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

1fwt__assembly_1__model_1

1fwt__assembly_1__model_1 | I(q)

1fwt__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 (6)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)