9vnj

Crystal structure of the transmembrane domain of trimeric autotransporter adhesin AtaA in complex with the N-terminal domain of TpgA

Method: X-RAY DIFFRACTION

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

Trimeric autotransporter adhesin AtaA

Acinetobacter sp. Tol 5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	Trimeric autotransporter adhesin- and peptidoglycan-associated protein A × 3 （A0A160PB22） CALCIUM ION × 15 (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 TRIETHYLENE GLYCOL × 24 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 3 CHLORIDE ION × 18 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ATAA_ACIS5
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–108； UniProt 3524–3630

Trimeric autotransporter adhesin- and peptidoglycan-associated protein A

Acinetobacter sp. Tol 5

UniProt A0A160PB22

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	Trimeric autotransporter adhesin AtaA × 3 （K7ZP88） CALCIUM ION × 15 (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 TRIETHYLENE GLYCOL × 24 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 3 CHLORIDE ION × 18 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TPGA_ACIS5
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 2–116； UniProt 24–138

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	9vnj
Deposition date deposition_date	2025-06-30
Structure title title	Crystal structure of the transmembrane domain of trimeric autotransporter adhesin AtaA in complex with the N-terminal domain of TpgA
Keywords keywords	Outer membrane, Acinetobacter, CELL ADHESION; CELL ADHESION
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.

9vnj__assembly_1__model_1

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

Download this curve (.dat)

9vnj__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9vnj__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	32.14 Å
Rg (electron density)	32.22 Å
Total Rg	32.71 Å
Atom count	5144
Residues	600
Excluded volume	92120 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9vnj__assembly_1__model_1`	hexameric （6）	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 (8)

Entity 1 Entity 1 polymer

Description description	Trimeric autotransporter adhesin AtaA
Molecular weight formula_weight	11123.3 kDa
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	1788

MADQALNSKIDNVSNKLDNAFRITNNRIDDVEKKANAGIAAAMALESAPYVPGKYTYAAGAAYHGGENAVGVTLRKTADNGRWSITGGVAAASQGDASVRIGISGVID

Source Source

Source organism organism	Acinetobacter sp. Tol 5
NCBI taxonomy ID ncbi_taxonomy_id	710648
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Trimeric autotransporter adhesin- and peptidoglycan-associated protein A
Molecular weight formula_weight	15097.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MAEVESANTQEIHFPEIKDSYLKQVNRYEYDDVARLDKGLTKDQIRHILGNPQFSEGLFAVKTWNYVLDIREPNSNQYKRCQLRIDFDKQYRSDNLYWKGEQCQGLMAWGINNQSEAAALEHHHHHH

Source Source

Source organism organism	Acinetobacter sp. Tol 5
NCBI taxonomy ID ncbi_taxonomy_id	710648
Host organism host_organism	Escherichia coli

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	5

Entity 4 Entity 4 non-polymer

Description description	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
Molecular weight formula_weight	306.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	TRIETHYLENE GLYCOL
Molecular weight formula_weight	150.2 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 6 Entity 6 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	1

Entity 7 Entity 7 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 8 Entity 8 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	71

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Unit-cell length a length_a	61.939 Å
Unit-cell length b length_b	61.939 Å
Unit-cell length c length_c	428.920 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	H 3 2
Space-group number int_tables_number	155
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	37.925 Å
R factor r_factor	0.1969
R_work r_work	0.1945
R_free r_free	0.2441

Crystal structure of the transmembrane domain of trimeric autotransporter adhesin AtaA in complex with the N-terminal domain of TpgA

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

Trimeric autotransporter adhesin AtaA

State in the Current Structure

Other States of the Same Protein in the Database

Trimeric autotransporter adhesin- and peptidoglycan-associated protein A

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

9vnj__assembly_1__model_1

9vnj__assembly_1__model_1 | I(q)

9vnj__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 (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

7. Citations (1)

Crystal structure of the transmembrane domain of trimeric autotransporter adhesin AtaA in complex with the N-terminal domain of TpgA

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

Trimeric autotransporter adhesin AtaA

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Trimeric autotransporter adhesin- and peptidoglycan-associated protein A

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

9vnj__assembly_1__model_1

9vnj__assembly_1__model_1 | I(q)

9vnj__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 (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

7. Citations (1)