SAXSdb — 2jaa

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

INVASIN IPAD

SHIGELLA FLEXNERI

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IPAD_SHIFL
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–212； UniProt 121–332 Author chain B； PDBConstruct 1–212； UniProt 121–332

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	2jaa
Deposition date deposition_date	2006-11-24
Structure title title	SeMet substituted Shigella Flexneri Ipad
Keywords keywords	IPAD, T3SS, SEMET, INVASIN, VIRULENCE, CELL INVASION, SHIGELLA FLEXNERI, TYPE III SECRETION; CELL INVASION
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.

2jaa__assembly_1__model_1

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

Download this curve (.dat)

2jaa__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2jaa__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.66 Å
Rg (electron density)	26.84 Å
Total Rg	27.73 Å
Atom count	2759
Residues	339
Excluded volume	49302 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2jaa__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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2jaaa1
Class class	a — All alpha proteins
Fold Fold fold	a.250 — IpaD-like
Superfamily Superfamily superfamily	a.250.1 — IpaD-like
Family Family family	a.250.1.1 — IpaD-like

Domain ID domain_id	d2jaab_
Class class	a — All alpha proteins
Fold Fold fold	a.250 — IpaD-like
Superfamily Superfamily superfamily	a.250.1 — IpaD-like
Family Family family	a.250.1.1 — IpaD-like

CATH v4.4 (2 domains)

Domain ID domain_id	2jaaA00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1710 — IpaD-like
Homologous superfamily homologous superfamily	10 — IpaD-like

Domain ID domain_id	2jaaB00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1710 — IpaD-like
Homologous superfamily homologous superfamily	10 — IpaD-like

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Unit-cell length a length_a	137.838 Å
Unit-cell length b length_b	44.484 Å
Unit-cell length c length_c	100.310 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	107.96 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	3.100 Å
Low-resolution limit resolution_low	34.000 Å
R factor r_factor	0.2621
R_work r_work	0.2621
R_free r_free	0.2755

Description description	INVASIN IPAD
Molecular weight formula_weight	23739.7 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2767

SeMet substituted Shigella Flexneri Ipad

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

INVASIN IPAD

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

2jaa__assembly_1__model_1

2jaa__assembly_1__model_1 | I(q)

2jaa__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	SHIGELLA FLEXNERI
NCBI taxonomy ID ncbi_taxonomy_id	623
Host organism host_organism	ESCHERICHIA COLI

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	8

SeMet substituted Shigella Flexneri Ipad

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

INVASIN IPAD

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

2jaa__assembly_1__model_1

2jaa__assembly_1__model_1 | I(q)

2jaa__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)