SAXSdb — 8ci0

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

Transketolase, chloroplastic

Zea mays

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	MAGNESIUM ION × 3 THIAMINE DIPHOSPHATE × 2 (1~{Z},3~{R},4~{S},7~{S},8~{Z})-8-ethylidene-4,7-bis(oxidanyl)-5-oxidanylidene-3-propyl-cyclononene-1,2-dicarboxylic acid × 1 2-[3-[(4-azanyl-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-2H-1,3-thiazol-5-yl]ethyl phosphono hydrogen phosphate × 1 water × 3	Review required

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TKTC_MAIZE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain AAA； PDBConstruct 14–688； UniProt 1–675 Author chain BBB； PDBConstruct 14–688； UniProt 1–675 Author chain CCC； PDBConstruct 14–688； UniProt 1–675

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	8ci0
Deposition date deposition_date	2023-02-08
Structure title title	Maize Transketolase in complex with TPP and hydrolyzed (+)-Cornexistin
Keywords keywords	Herbicide, 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.

8ci0__assembly_1__model_1

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

Download this curve (.dat)

8ci0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8ci0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	52.56 Å
Rg (electron density)	53.12 Å
Total Rg	53.12 Å
Atom count	15350
Residues	1998
Excluded volume	271680 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8ci0__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 (6)

Entity 1 Entity 1 polymer

Description description	Transketolase, chloroplastic
Molecular weight formula_weight	74830.2 kDa
EC 编号 ec_number	2.2.1.1
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	AAA,BBB,CCC
Atom count atom_count	17364

MHHHHHHENLYFQGAVETLQGKAATGELLEKSVNTIRFLAIDAVEKANSGHPGLPMGCAPMGHVLYDEVMRYNPKNPYWFNRDRFVLSAGHGCMLQYALLHLAGYDSVKEEDLKQFRQWGSRTPGHPENFETPGVEVTTGPLGQGIANAVGLALAEKHLAARFNKPDSEIVDHYTYVILGDGCQMEGIANEACSLAGHWGLGKLIAFYDDNHISIDGDTEIAFTEDVSTRFEALGWHTIWVKNGNTGYDDIRAAIKEAKAVTDKPTLIKVTTTIGFGSPNKANSYSVHGSALGAKEVEATRQNLGWPYDTFFVPEDVKSHWSRHTPEGAALEADWNAKFAEYEKKYADDAATLKSIITGELPTGWVDALPKYTPESPGDATRNLSQQCLNALANVVPGLIGGSADLASSNMTLLKMFGDFQKDTAEERNVRFGVREHGMGAICNGIALHSPGFVPYCATFFVFTDYMRGAMRISALSEAGVIYVMTHDSIGLGEDGPTHQPIEHLVSFRAMPNILMLRPADGNETAGAYKVAVLNRKRPSILALSRQKLPHLPGTSIEGVEKGGYTISDNSTGNKPDLIVMGTGSELEIAAKAADELRKEGKTVRVVSFVSWELFDEQSDEYKESVLPAAVTARISIEAGSTLGWQKYVGAQGKAIGIDKFGASAPAGTIYKEYGITVESIIAAAKSF

Source Source

Source organism organism	Zea mays
NCBI taxonomy ID ncbi_taxonomy_id	4577
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	3

Entity 3 Entity 3 non-polymer

Description description	THIAMINE DIPHOSPHATE
Molecular weight formula_weight	425.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	(1~{Z},3~{R},4~{S},7~{S},8~{Z})-8-ethylidene-4,7-bis(oxidanyl)-5-oxidanylidene-3-propyl-cyclononene-1,2-dicarboxylic acid
Molecular weight formula_weight	326.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	2-[3-[(4-azanyl-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-2H-1,3-thiazol-5-yl]ethyl phosphono hydrogen phosphate
Molecular weight formula_weight	426.3 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	2014

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Unit-cell length a length_a	135.309 Å
Unit-cell length b length_b	135.309 Å
Unit-cell length c length_c	201.439 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	18

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

Resolution resolution	1.902 Å
Low-resolution limit resolution_low	23.727 Å
R factor r_factor	—
R_work r_work	0.1532
R_free r_free	0.1836

Maize Transketolase in complex with TPP and hydrolyzed (+)-Cornexistin

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

Transketolase, chloroplastic

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

8ci0__assembly_1__model_1

8ci0__assembly_1__model_1 | I(q)

8ci0__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

7. Citations (1)

Maize Transketolase in complex with TPP and hydrolyzed (+)-Cornexistin

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

Transketolase, chloroplastic

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

8ci0__assembly_1__model_1

8ci0__assembly_1__model_1 | I(q)

8ci0__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

7. Citations (1)