SAXSdb — 2aib

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

Beta-elicitin cinnamomin

Phytophthora cinnamomi

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ERGOSTEROL × 2 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1 GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ELIB_PHYCI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–98； UniProt 1–98 Author chain B； PDBConstruct 1–98； UniProt 1–98

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	2aib
Deposition date deposition_date	2005-07-29
Structure title title	beta-cinnamomin in complex with ergosterol
Keywords keywords	elicitin, sterol carrier protein, phytophthora, phytopathogen, Toxin; TOXIN
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.

2aib__assembly_1__model_1

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

Download this curve (.dat)

2aib__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2aib__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.07 Å
Rg (electron density)	17.76 Å
Total Rg	18.68 Å
Atom count	1510
Residues	196
Excluded volume	27527 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2aib__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 (5)

Entity 1 Entity 1 polymer

Description description	Beta-elicitin cinnamomin
Molecular weight formula_weight	10299.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2061

TACTATQQTAAYKTLVSILSESSFSQCSKDSGYSMLTATALPTNAQYKLMCASTACNTMIKKIVALNPPDCDLTVPTSGLVLDVYTYANGFSSKCASL

Source Source

Source organism organism	Phytophthora cinnamomi
NCBI taxonomy ID ncbi_taxonomy_id	4785
Host organism host_organism	Pichia pastoris

Entity 2 Entity 2 non-polymer

Description description	ERGOSTEROL
Molecular weight formula_weight	396.6 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 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 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	454

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2aiba_
Class class	a — All alpha proteins
Fold Fold fold	a.134 — Fungal elicitin
Superfamily Superfamily superfamily	a.134.1 — Fungal elicitin
Family Family family	a.134.1.1 — Fungal elicitin

Domain ID domain_id	d2aibb_
Class class	a — All alpha proteins
Fold Fold fold	a.134 — Fungal elicitin
Superfamily Superfamily superfamily	a.134.1 — Fungal elicitin
Family Family family	a.134.1.1 — Fungal elicitin

CATH v4.4 (2 domains)

Domain ID domain_id	2aibA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	239 — Beta-cryptogein
Homologous superfamily homologous superfamily	10 — Elicitin domain

Domain ID domain_id	2aibB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	239 — Beta-cryptogein
Homologous superfamily homologous superfamily	10 — Elicitin domain

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Unit-cell length a length_a	30.983 Å
Unit-cell length b length_b	62.779 Å
Unit-cell length c length_c	49.988 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	93.40 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.100 Å
Low-resolution limit resolution_low	49.900 Å
R factor r_factor	0.1190
R_work r_work	0.1150
R_free r_free	0.1500

beta-cinnamomin in complex with ergosterol

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

Beta-elicitin cinnamomin

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

2aib__assembly_1__model_1

2aib__assembly_1__model_1 | I(q)

2aib__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 (5)

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 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

beta-cinnamomin in complex with ergosterol

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

Beta-elicitin cinnamomin

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

2aib__assembly_1__model_1

2aib__assembly_1__model_1 | I(q)

2aib__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 (5)

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 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)