SAXSdb — 4dk0

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

Putative MacA

Aggregatibacter actinomycetemcomitans

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 12	No other associated polymer	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 6	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q2EHL9_AGGAC
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–369； UniProt 30–394

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	4dk0
Deposition date deposition_date	2012-02-03
Structure title title	Crystal structure of MacA from Actinobacillus actinomycetemcomitans
Keywords keywords	alpha-hairpin, lipoyl, beta-barrel, PERIPLASMIC PROTEIN, MEMBRANE PROTEIN; MEMBRANE PROTEIN
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.

4dk0__assembly_1__model_1

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

Download this curve (.dat)

4dk0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4dk0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	88.55 Å
Rg (electron density)	90.95 Å
Total Rg	90.18 Å
Atom count	29832
Residues	3852
Excluded volume	533300 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4dk0__assembly_1__model_1`	dodecameric （12）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4dk0__assembly_2__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 (1)

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id	4dk0A01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	420 — conserved putative lor/sdh protein from methanococcus maripaludis s2 fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	4dk0A02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	170 — Efflux pump adaptor protein, beta barrel domain

Domain ID domain_id	4dk0A03
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain

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Unit-cell length a length_a	109.188 Å
Unit-cell length b length_b	109.188 Å
Unit-cell length c length_c	255.442 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	12

Space group space_group	P 6 2 2
Space-group number int_tables_number	177
Crystal system crystal_system	—

Resolution resolution	3.500 Å
Low-resolution limit resolution_low	9.991 Å
R factor r_factor	0.3435
R_work r_work	0.3384
R_free r_free	0.3899

Description description	Putative MacA
Molecular weight formula_weight	39866.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2486

Crystal structure of MacA from Actinobacillus actinomycetemcomitans

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

Putative MacA

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

4dk0__assembly_1__model_1

4dk0__assembly_1__model_1 | I(q)

4dk0__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)

Source organism organism	Aggregatibacter actinomycetemcomitans
NCBI taxonomy ID ncbi_taxonomy_id	714
Host organism host_organism	Escherichia coli

Crystal structure of MacA from Actinobacillus actinomycetemcomitans

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

Putative MacA

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

4dk0__assembly_1__model_1

4dk0__assembly_1__model_1 | I(q)

4dk0__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)