SAXSdb — 7wrr

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

Transketolase

Thermus thermophilus HB8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	THIAMINE DIPHOSPHATE × 2 CALCIUM ION × 2 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	THIAMINE DIPHOSPHATE × 2 CALCIUM ION × 2 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5SM35_THET8
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 22–672； UniProt 1–651 Author chain B； PDBConstruct 22–672； UniProt 1–651 Author chain C； PDBConstruct 22–672； UniProt 1–651 Author chain D； PDBConstruct 22–672； UniProt 1–651

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	7wrr
Deposition date deposition_date	2022-01-27
Structure title title	X-ray structure of Thermus thermophilus HB8 transketorase in complex with TPP and MES
Keywords keywords	transketolase, complex, TPP, 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.

7wrr__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

7wrr__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7wrr__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	31.98 Å
Rg (electron density)	31.09 Å
Total Rg	31.77 Å
Atom count	10218
Residues	1300
Excluded volume	181680 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7wrr__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7wrr__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 (5)

Entity 1 Entity 1 polymer

Description description	Transketolase
Molecular weight formula_weight	74230.7 kDa
EC 编号 ec_number	2.2.1.1
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	20961

MGSSHHHHHHSSGLVPRGSHSMKETRDLETLSVNAIRFLAIDAVEKARSGHPGMPMGMAPLAYLLFREVMRHNPLDPDWPDRDRFVLSAGHGSMLLYAVLHLTGYDLPLEELKSFRQWGSKTPGHPERGHTPGVEVTTGPLGQGISTAVGLALAERKLAAEFNRPGHVVVDHYTYVLASDGDLMEGVSGEAASLAGHWGLSKLIVFWDDNRISIDGPTDLAFTEDVLARYRAYGWQTLRVEDVNDLEALRKAIKLAKLDERPTLIAVRSHIGFGSPKQDSAKAHGEPLGPEAVEATRRNLGWPYPPFVVPEEVYRHMDMREKGRAWQEAWEKALEAYARAYPDLHQELMRRLRGELPPLPEEPPSFDKPIATRAASGRALNLLAPRLPELLGGSADLTPSNNTKAEGMEDFSRANPLGRYLHFGVREHAMGAILNGLNLHGGYRAYGGTFLVFSDYMRPAIRLAALMGVPTVFVFTHDSIALGEDGPTHQPVEHLMSLRAMPNLFVIRPADAYETFYAWLVALRRKEGPTALVLTRQAVPLLSPEKARGLLRGGYVLEDVEEPQGVLVATGSEVHLALRAQALLREKGVRVRVVSLPSFELFAAQPEAYRKEVLPPGLPVVAVEAGASLGWERYAHKVVALDRFGASAPYPEVYERLGFTPERVAEAFLSLV

Source Source

Source organism organism	Thermus thermophilus HB8
NCBI taxonomy ID ncbi_taxonomy_id	300852
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	THIAMINE DIPHOSPHATE
Molecular weight formula_weight	425.3 kDa
Source method src_method	nat
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	2-(N-MORPHOLINO)-ETHANESULFONIC ACID
Molecular weight formula_weight	195.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	525

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Unit-cell length a length_a	72.720 Å
Unit-cell length b length_b	88.840 Å
Unit-cell length c length_c	117.610 Å
Unit-cell angle α angle_alpha	72.56 °
Unit-cell angle β angle_beta	88.74 °
Unit-cell angle γ angle_gamma	73.74 °
Molecules per unit cell Z z_pdb	4

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

Resolution resolution	2.010 Å
Low-resolution limit resolution_low	46.670 Å
R factor r_factor	—
R_work r_work	0.1977
R_free r_free	0.2284

X-ray structure of Thermus thermophilus HB8 transketorase in complex with TPP and MES

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

Transketolase

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

7wrr__assembly_2__model_1

7wrr__assembly_2__model_1 | I(q)

7wrr__assembly_2__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 (5)

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 water

7. Citations (1)

X-ray structure of Thermus thermophilus HB8 transketorase in complex with TPP and MES

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

Transketolase

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

7wrr__assembly_2__model_1

7wrr__assembly_2__model_1 | I(q)

7wrr__assembly_2__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 (5)

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 water

7. Citations (1)