7cqj

Peroxiredoxin from Aeropyrum pernix K1 (ApPrx) C50S/K84A/C207S/C213S mutant (ApPrx*K84A)

Method: X-RAY DIFFRACTION

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

Peroxiredoxin

Aeropyrum pernix K1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 12	water × 11	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TDXH_AERPE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–250； UniProt 1–250 Author chain B； PDBConstruct 1–250； UniProt 1–250 Author chain C； PDBConstruct 1–250； UniProt 1–250 Author chain D； PDBConstruct 1–250； UniProt 1–250 Author chain E； PDBConstruct 1–250； UniProt 1–250 Author chain F； PDBConstruct 1–250； UniProt 1–250 Author chain G； PDBConstruct 1–250； UniProt 1–250 Author chain H； PDBConstruct 1–250； UniProt 1–250 Author chain I； PDBConstruct 1–250； UniProt 1–250 Author chain J； PDBConstruct 1–250； UniProt 1–250 Author chain K； PDBConstruct 1–250； UniProt 1–250 Author chain L； PDBConstruct 1–250； UniProt 1–250

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	7cqj
Deposition date deposition_date	2020-08-11
Structure title title	Peroxiredoxin from Aeropyrum pernix K1 (ApPrx) C50S/K84A/C207S/C213S mutant (ApPrx*K84A)
Keywords keywords	Peroxiredoxin, OXIDOREDUCTASE; OXIDOREDUCTASE
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.

7cqj__assembly_1__model_1

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

Download this curve (.dat)

7cqj__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7cqj__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	60.07 Å
Rg (electron density)	59.06 Å
Total Rg	59.21 Å
Atom count	23628
Residues	2928
Excluded volume	420620 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7cqj__assembly_1__model_1`	dodecameric （12）	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) 12 domains

SCOP 2.08 (12 domains)

Domain ID domain_id	d7cqja_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqje_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjf_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjg_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjh_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqji_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjj_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjk_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

Domain ID domain_id	d7cqjl_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.10 — Glutathione peroxidase-like

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Unit-cell length a length_a	57.008 Å
Unit-cell length b length_b	210.575 Å
Unit-cell length c length_c	308.668 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	48

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	49.480 Å
R factor r_factor	—
R_work r_work	0.1788
R_free r_free	0.2559

Description description	Peroxiredoxin
Molecular weight formula_weight	28637.7 kDa
EC 编号 ec_number	1.11.1.24
Mutation mutation	C50S,K84A,C207S,C213S
Source method src_method	man
Copy count entity_count	12

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L
Atom count atom_count	23675

Peroxiredoxin from Aeropyrum pernix K1 (ApPrx) C50S/K84A/C207S/C213S mutant (ApPrx*K84A)

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

Peroxiredoxin

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

7cqj__assembly_1__model_1

7cqj__assembly_1__model_1 | I(q)

7cqj__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) 12 domains

SCOP 2.08 (12 domains)

7. Citations (1)

Source organism organism	Aeropyrum pernix K1
NCBI taxonomy ID ncbi_taxonomy_id	272557
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	47

Peroxiredoxin from Aeropyrum pernix K1 (ApPrx) C50S/K84A/C207S/C213S mutant (ApPrx*K84A)

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

Peroxiredoxin

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

7cqj__assembly_1__model_1

7cqj__assembly_1__model_1 | I(q)

7cqj__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) 12 domains

SCOP 2.08 (12 domains)

7. Citations (1)