SAXSdb — 2ajr

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

sugar kinase, pfkB family

Thermotoga maritima

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 2 ACETATE ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9WZT5_THEMA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 13–331； UniProt 1–319 Author chain B； PDBConstruct 13–331； UniProt 1–319

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	2ajr
Deposition date deposition_date	2005-08-02
Structure title title	Crystal structure of Possible 1-phosphofructokinase (EC 2.7.1.56) (tm0828) from Thermotoga Maritima at 2.46 A resolution
Keywords keywords	;tm0828, Possible 1-phosphofructokinase (EC 2.7.1.56), Structural Genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI, TRANSFERASE ;; TRANSFERASE
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.

2ajr__assembly_1__model_1

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

Download this curve (.dat)

2ajr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2ajr__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.47 Å
Rg (electron density)	29.11 Å
Total Rg	29.65 Å
Atom count	5023
Residues	624
Excluded volume	90515 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2ajr__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	sugar kinase, pfkB family
Molecular weight formula_weight	37799.0 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	5075

MGSDKIHHHHHHMVLTVTLNPALDREIFIEDFQVNRLYRINDLSKTQMSPGGKGINVSIALSKLGVPSVATGFVGGYMGKILVEELRKISKLITTNFVYVEGETRENIEIIDEKNKTITAINFPGPDVTDMDVNHFLRRYKMTLSKVDCVVISGSIPPGVNEGICNELVRLARERGVFVFVEQTPRLLERIYEGPEFPNVVKPDLRGNHASFLGVDLKTFDDYVKLAEKLAEKSQVSVVSYEVKNDIVATREGVWLIRSKEEIDTSHLLGAGDAYVAGMVYYFIKHGANFLEMAKFGFASALAATRRKEKYMPDLEAIKKEYDHFTVERVK

Source Source

Source organism organism	Thermotoga maritima
NCBI taxonomy ID ncbi_taxonomy_id	2336
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 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	42

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2ajra2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.72 — Ribokinase-like
Superfamily Superfamily superfamily	c.72.1 — Ribokinase-like
Family Family family	c.72.1.1 — Ribokinase-like

Domain ID domain_id	d2ajra3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2ajrb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.72 — Ribokinase-like
Superfamily Superfamily superfamily	c.72.1 — Ribokinase-like
Family Family family	c.72.1.1 — Ribokinase-like

Domain ID domain_id	d2ajrb3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id	2ajrA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily	20 — Ribokinase

Domain ID domain_id	2ajrA02
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	150 — putative 5-dehydro-2- deoxygluconokinase like fold
Homologous superfamily homologous superfamily	10 — putative 5-dehydro-2- deoxygluconokinase

Domain ID domain_id	2ajrB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily	20 — Ribokinase

Domain ID domain_id	2ajrB02
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	150 — putative 5-dehydro-2- deoxygluconokinase like fold
Homologous superfamily homologous superfamily	10 — putative 5-dehydro-2- deoxygluconokinase

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Unit-cell length a length_a	115.796 Å
Unit-cell length b length_b	115.796 Å
Unit-cell length c length_c	124.828 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 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.460 Å
Low-resolution limit resolution_low	28.490 Å
R factor r_factor	—
R_work r_work	0.1930
R_free r_free	0.2400

Crystal structure of Possible 1-phosphofructokinase (EC 2.7.1.56) (tm0828) from Thermotoga Maritima at 2.46 A resolution

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

sugar kinase, pfkB family

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

2ajr__assembly_1__model_1

2ajr__assembly_1__model_1 | I(q)

2ajr__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of Possible 1-phosphofructokinase (EC 2.7.1.56) (tm0828) from Thermotoga Maritima at 2.46 A resolution

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

sugar kinase, pfkB family

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

2ajr__assembly_1__model_1

2ajr__assembly_1__model_1 | I(q)

2ajr__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)