SAXSdb — 2a03

▼

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

Fe-superoxide dismutase homolog

Plasmodium berghei

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	MANGANESE (II) ION × 2 ZINC ION × 1 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	MANGANESE (II) ION × 4 ZINC ION × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q4YW77_PLABE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 9–206； UniProt 1–198 Author chain B； PDBConstruct 9–206； UniProt 1–198

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	2a03
Deposition date deposition_date	2005-06-15
Structure title title	Superoxide dismutase protein from plasmodium berghei
Keywords keywords	STRUCTURAL GENOMICS, PSI, Protein Structure Initiative, Structural Genomics of Pathogenic Protozoa Consortium, SGPP, Oxidoreductase; OXIDOREDUCTASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

2a03__assembly_1__model_1

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

Download this curve (.dat)

2a03__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2a03__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.33 Å
Rg (electron density)	22.47 Å
Total Rg	23.46 Å
Atom count	3136
Residues	394
Excluded volume	55235 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2a03__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2a03__assembly_2__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Fe-superoxide dismutase homolog
Molecular weight formula_weight	23626.5 kDa
EC 编号 ec_number	1.15.1.1
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	3421

MAHHHHHHMAITLPKLKYALNALSPHISEETLSFHYNKHHAGYVNKLNGLIKDTPLANKSLTDILKESTGAIFNNAAQIWNHSFYWDSMGPNCGGEPHGEIKEKIQEDFGSFNNFKDQFSNVLCGHFGSGWGWLALNKNNKLVILQTHDAGNPIKENTGIPILTCDVWEHAYYIDYRNDRLSYVKAWWNLVNWNFANENLKNALNK

Source Source

Source organism organism	Plasmodium berghei
NCBI taxonomy ID ncbi_taxonomy_id	5821
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MANGANESE (II) ION
Molecular weight formula_weight	54.9 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 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	256

▼

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2a03a1
Class class	a — All alpha proteins
Fold Fold fold	a.2 — Long alpha-hairpin
Superfamily Superfamily superfamily	a.2.11 — Fe,Mn superoxide dismutase (SOD), N-terminal domain
Family Family family	a.2.11.0 — automated matches

Domain ID domain_id	d2a03a2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.44 — Fe,Mn superoxide dismutase (SOD), C-terminal domain
Superfamily Superfamily superfamily	d.44.1 — Fe,Mn superoxide dismutase (SOD), C-terminal domain
Family Family family	d.44.1.0 — automated matches

Domain ID domain_id	d2a03b1
Class class	a — All alpha proteins
Fold Fold fold	a.2 — Long alpha-hairpin
Superfamily Superfamily superfamily	a.2.11 — Fe,Mn superoxide dismutase (SOD), N-terminal domain
Family Family family	a.2.11.0 — automated matches

Domain ID domain_id	d2a03b2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.44 — Fe,Mn superoxide dismutase (SOD), C-terminal domain
Superfamily Superfamily superfamily	d.44.1 — Fe,Mn superoxide dismutase (SOD), C-terminal domain
Family Family family	d.44.1.0 — automated matches

▶

Unit-cell length a length_a	105.111 Å
Unit-cell length b length_b	105.111 Å
Unit-cell length c length_c	207.935 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	24

Space group space_group	P 65 2 2
Space-group number int_tables_number	179
Crystal system crystal_system	—

Resolution resolution	2.330 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.1707
R_free r_free	0.2017

Superoxide dismutase protein from plasmodium berghei

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

Fe-superoxide dismutase homolog

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

2a03__assembly_1__model_1

2a03__assembly_1__model_1 | I(q)

2a03__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) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)

Superoxide dismutase protein from plasmodium berghei

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

Fe-superoxide dismutase homolog

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

2a03__assembly_1__model_1

2a03__assembly_1__model_1 | I(q)

2a03__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) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)