SAXSdb — 2yxz

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

Thiamin-monophosphate kinase

Thermus thermophilus

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5SL69_THET8
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–311； UniProt 1–311 Author chain B； PDBConstruct 1–311； UniProt 1–311 Author chain C； PDBConstruct 1–311； UniProt 1–311 Author chain D； PDBConstruct 1–311； UniProt 1–311

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	2yxz
Deposition date deposition_date	2007-04-27
Structure title title	Crystal structure of tt0281 from Thermus thermophilus HB8
Keywords keywords	alpha/beta structure, 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.

2yxz__assembly_1__model_1

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

Download this curve (.dat)

2yxz__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2yxz__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.46 Å
Rg (electron density)	25.63 Å
Total Rg	26.50 Å
Atom count	4467
Residues	610
Excluded volume	80263 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2yxz__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2yxz__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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	2yxzA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	10 — PurM-like, N-terminal domain

Domain ID domain_id	2yxzA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	650 — Phosphoribosyl-aminoimidazole Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PurM-like C-terminal domain

Domain ID domain_id	2yxzB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	10 — PurM-like, N-terminal domain

Domain ID domain_id	2yxzB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	650 — Phosphoribosyl-aminoimidazole Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PurM-like C-terminal domain

Domain ID domain_id	2yxzC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	10 — PurM-like, N-terminal domain

Domain ID domain_id	2yxzC02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	650 — Phosphoribosyl-aminoimidazole Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PurM-like C-terminal domain

Domain ID domain_id	2yxzD01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	10 — PurM-like, N-terminal domain

Domain ID domain_id	2yxzD02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	650 — Phosphoribosyl-aminoimidazole Synthetase; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PurM-like C-terminal domain

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Unit-cell length a length_a	141.564 Å
Unit-cell length b length_b	52.190 Å
Unit-cell length c length_c	181.124 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	108.33 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	48.650 Å
R factor r_factor	0.2250
R_work r_work	0.2250
R_free r_free	0.2640

Description description	Thiamin-monophosphate kinase
Molecular weight formula_weight	32965.9 kDa
EC 编号 ec_number	2.7.4.16
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	9254

Crystal structure of tt0281 from Thermus thermophilus HB8

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

Thiamin-monophosphate kinase

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

2yxz__assembly_1__model_1

2yxz__assembly_1__model_1 | I(q)

2yxz__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

Source organism organism	Thermus thermophilus
NCBI taxonomy ID ncbi_taxonomy_id	300852
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	418

Crystal structure of tt0281 from Thermus thermophilus HB8

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

Thiamin-monophosphate kinase

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

2yxz__assembly_1__model_1

2yxz__assembly_1__model_1 | I(q)

2yxz__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)