2xq1

Crystal structure of peroxisomal catalase from the yeast Hansenula polymorpha

Method: X-RAY DIFFRACTION

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

PEROXISOMAL CATALASE

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	PROTOPORPHYRIN IX CONTAINING FE × 4 water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	PROTOPORPHYRIN IX CONTAINING FE × 3 water × 4	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 4	PROTOPORPHYRIN IX CONTAINING FE × 4 water × 4	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 4	PROTOPORPHYRIN IX CONTAINING FE × 4 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CATA_PICAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–509； UniProt 1–507 Author chain B； PDBConstruct 3–509； UniProt 1–507 Author chain C； PDBConstruct 3–509； UniProt 1–507 Author chain D； PDBConstruct 3–509； UniProt 1–507 Author chain E； PDBConstruct 3–509； UniProt 1–507 Author chain F； PDBConstruct 3–509； UniProt 1–507 Author chain G； PDBConstruct 3–509； UniProt 1–507 Author chain H； PDBConstruct 3–509； UniProt 1–507 Author chain I； PDBConstruct 3–509； UniProt 1–507 Author chain J； PDBConstruct 3–509； UniProt 1–507 Author chain K； PDBConstruct 3–509； UniProt 1–507 Author chain L； PDBConstruct 3–509； UniProt 1–507 Author chain M； PDBConstruct 3–509； UniProt 1–507 Author chain N； PDBConstruct 3–509； UniProt 1–507 Author chain O； PDBConstruct 3–509； UniProt 1–507 Author chain P； PDBConstruct 3–509； UniProt 1–507

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	2xq1
Deposition date deposition_date	2010-08-31
Structure title title	Crystal structure of peroxisomal catalase from the yeast Hansenula polymorpha
Keywords keywords	OXIDOREDUCTASE, HYDROGEN PEROXIDE DETOXIFICATION, PTS1; 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.

2xq1__assembly_1__model_1

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

Download this curve (.dat)

2xq1__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2xq1__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.76 Å
Rg (electron density)	36.24 Å
Total Rg	36.81 Å
Atom count	15950
Residues	1966
Excluded volume	280960 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2xq1__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2xq1__assembly_2__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2xq1__assembly_3__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`2xq1__assembly_4__model_1`	tetrameric （4）	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 (3)

Entity 1 Entity 1 polymer

Description description	PEROXISOMAL CATALASE
Molecular weight formula_weight	58034.8 kDa
EC 编号 ec_number	1.11.1.6
Source method src_method	nat
Copy count entity_count	16

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P
Atom count atom_count	63839

GAMANPPVFTTSQGCPVSDPFTTQRIPLDSTGYKYAPPIGPLLLQDFKLIDTLSHFDRERIPERVVHAKGAGAYGVFEVTDDITDVCSAKFLDTVGKKTRIFTRFSTVGGEKGSADTARDPRGFATKFYTEDGNLDLVYNNTPIFFIRDPIKFPHFIHTQKRNPATNLKDPNMFWDYLTANDESLHQVMYLFSNRGTPASYRTMNGYSGHTYKWYNSKGEWVYVQVHFIANQGVHNLLDEEAGRLAGEDPDHSTRDLWEAIEKGDYPSWECYIQTMTLEQSKKLPFSVFDLTKVWPHKDFPLRHFGRFTLNENPKNYYAETEQIAFSPSHTVPGMEPSNDPVLQSRLFSYPDTHRHRLGPNYHQIPVNCPLKSGSFNPINRDGPMCVDGNLGGTPNYANAYNCPIQYAVSPKASGNKPDEKYTGEVVPYHWEHTDYDYFQPKMFWKVLGRTPGEQESLVKNVANHVSAADEFIQDRVYEYFSKAEPIIGDLIRKKVQELKRKASSPSKI

Entity 2 Entity 2 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	15

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	65

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6. Fold Classification (SCOP + CATH) 37 domains

SCOP 2.08 (21 domains)

Domain ID domain_id	d2xq1a_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1b1
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1b2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2xq1c_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1d1
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1d2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2xq1e_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1f1
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1f2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2xq1g_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1h_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1i_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1j1
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1j2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2xq1k_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1l_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1m_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1n1
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1n2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2xq1o_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

Domain ID domain_id	d2xq1p_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamily	e.5.1 — Heme-dependent catalase-like
Family Family family	e.5.1.1 — Heme-dependent catalases

CATH v4.4 (16 domains)

Domain ID domain_id	2xq1A00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1B00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1C00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1D00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1E00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1F00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1G00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1H00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1I00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1J00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1K00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1L00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1M00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1N00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1O00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

Domain ID domain_id	2xq1P00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	180 — Catalase HpII, Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Catalase core domain

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Unit-cell length a length_a	132.520 Å
Unit-cell length b length_b	196.680 Å
Unit-cell length c length_c	170.850 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	92.85 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	32

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

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.1908
R_work r_work	0.1906
R_free r_free	0.2230

Crystal structure of peroxisomal catalase from the yeast Hansenula polymorpha

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

PEROXISOMAL CATALASE

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

2xq1__assembly_1__model_1

2xq1__assembly_1__model_1 | I(q)

2xq1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 37 domains

SCOP 2.08 (21 domains)

CATH v4.4 (16 domains)

7. Citations (1)

Crystal structure of peroxisomal catalase from the yeast Hansenula polymorpha

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

PEROXISOMAL CATALASE

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

2xq1__assembly_1__model_1

2xq1__assembly_1__model_1 | I(q)

2xq1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 37 domains

SCOP 2.08 (21 domains)

CATH v4.4 (16 domains)

7. Citations (1)