SAXSdb — 2tdt

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

TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE

Mycobacterium bovis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	COENZYME A × 3 (2S)-2-aminoheptanedioic acid × 3 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	DAPD_MYCBO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–274； UniProt 1–274

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	2tdt
Deposition date deposition_date	1998-05-05
Structure title title	COMPLEX OF TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE WITH 2-AMINOPIMELATE AND COENZYME A
Keywords keywords	ACYLTRANSFERASE, LYSINE BIOSYNTHESIS; ACYLTRANSFERASE
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.

2tdt__assembly_1__model_1

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

Download this curve (.dat)

2tdt__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2tdt__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.86 Å
Rg (electron density)	25.63 Å
Total Rg	26.46 Å
Atom count	6405
Residues	822
Excluded volume	113620 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2tdt__assembly_1__model_1`	trimeric （3）	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	TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE
Molecular weight formula_weight	29919.0 kDa
EC 编号 ec_number	2.3.1.117
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2220

MQQLQNVIESAFERRADITPANVDTVTREAVNQVIGLLDSGALRVAEKIDGQWVTHQWLKKAVLLSFRINDNKVMDGAETRYYDKVPMKFADYDEARFQKEGFRVVPPATVRQGAFIARNTVLMPSYVNIGAYVDEGTMVDTWATVGSCAQIGKNVHLSGGVGIGGVLEPLQANPTIIEDNCFIGARSEVVEGVIVEEGSVISMGVYLGQSTRIYDRETGEIHYGRVPAGSVVVSGNLPSKDGSYSLYCAVIVKKVDAKTRGKVGINELLRTID

Source Source

Source organism organism	Mycobacterium bovis
NCBI taxonomy ID ncbi_taxonomy_id	1765
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	COENZYME A
Molecular weight formula_weight	767.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	(2S)-2-aminoheptanedioic acid
Molecular weight formula_weight	175.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	85

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2tdta_
Class class	b — All beta proteins
Fold Fold fold	b.81 — Single-stranded left-handed beta-helix
Superfamily Superfamily superfamily	b.81.1 — Trimeric LpxA-like enzymes
Family Family family	b.81.1.2 — Tetrahydrodipicolinate-N-succinlytransferase, THDP-succinlytransferase, DapD

CATH v4.4 (2 domains)

Domain ID domain_id	2tdtA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	166 — Tetrahydrodipicolinate-N-succinyltransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Tetrahydrodipicolinate-N-succinyltransferase, N-terminal domain

Domain ID domain_id	2tdtA02
Class class	2 — Mainly Beta
Architecture architecture	160 — 3 Solenoid
Topology topology	10 — UDP N-Acetylglucosamine Acyltransferase; domain 1
Homologous superfamily homologous superfamily	10 — Hexapeptide repeat proteins

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Unit-cell length a length_a	95.710 Å
Unit-cell length b length_b	95.710 Å
Unit-cell length c length_c	72.790 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	9

Space group space_group	H 3
Space-group number int_tables_number	146
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	99.000 Å
R factor r_factor	0.1710
R_work r_work	0.1690
R_free r_free	0.2400

COMPLEX OF TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE WITH 2-AMINOPIMELATE AND COENZYME A

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

TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE

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

2tdt__assembly_1__model_1

2tdt__assembly_1__model_1 | I(q)

2tdt__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) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (3)

COMPLEX OF TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE WITH 2-AMINOPIMELATE AND COENZYME A

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

TETRAHYDRODIPICOLINATE N-SUCCINYLTRANSFERASE

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

2tdt__assembly_1__model_1

2tdt__assembly_1__model_1 | I(q)

2tdt__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) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (3)