SAXSdb — 7di8

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

Catalase

Bos taurus

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 NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CATA_BOVIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–527； UniProt 1–527 Author chain B； PDBConstruct 1–527； UniProt 1–527 Author chain C； PDBConstruct 1–527； UniProt 1–527 Author chain D； PDBConstruct 1–527； UniProt 1–527

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	7di8
Deposition date deposition_date	2020-11-18
Structure title title	Electron crystallographic structure of Catalase using a direct electron detector at 300 kV
Keywords keywords	electron 3d crystallography, direct detector, cryo arm, parallem, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method method	ELECTRON CRYSTALLOGRAPHY

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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.

7di8__assembly_1__model_1

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

Download this curve (.dat)

7di8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7di8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	37.16 Å
Rg (electron density)	36.36 Å
Total Rg	36.94 Å
Atom count	32035
Residues	1996
Excluded volume	288170 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7di8__assembly_1__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	Catalase
Molecular weight formula_weight	59999.2 kDa
EC 编号 ec_number	1.11.1.6
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	32035

MADNRDPASDQMKHWKEQRAAQKPDVLTTGGGNPVGDKLNSLTVGPRGPLLVQDVVFTDEMAHFDRERIPERVVHAKGAGAFGYFEVTHDITRYSKAKVFEHIGKRTPIAVRFSTVAGESGSADTVRDPRGFAVKFYTEDGNWDLVGNNTPIFFIRDALLFPSFIHSQKRNPQTHLKDPDMVWDFWSLRPESLHQVSFLFSDRGIPDGHRHMNGYGSHTFKLVNANGEAVYCKFHYKTDQGIKNLSVEDAARLAHEDPDYGLRDLFNAIATGNYPSWTLYIQVMTFSEAEIFPFNPFDLTKVWPHGDYPLIPVGKLVLNRNPVNYFAEVEQLAFDPSNMPPGIEPSPDKMLQGRLFAYPDTHRHRLGPNYLQIPVNCPYRARVANYQRDGPMCMMDNQGGAPNYYPNSFSAPEHQPSALEHRTHFSGDVQRFNSANDDNVTQVRTFYLKVLNEEQRKRLCENIAGHLKDAQLFIQKKAVKNFSDVHPEYGSRIQALLDKYNEEKPKNAVHTYVQHGSHLSAREKANL

Source Source

Source organism organism	Bos taurus
Common name common_name	Bovine
NCBI taxonomy ID ncbi_taxonomy_id	9913
Host organism host_organism	Bos taurus

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	4

Entity 3 Entity 3 non-polymer

Description description	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
Molecular weight formula_weight	745.4 kDa
Source method src_method	syn
Copy count entity_count	4

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Unit-cell length a length_a	69.980 Å
Unit-cell length b length_b	174.020 Å
Unit-cell length c length_c	199.450 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	16

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

Resolution resolution	3.200 Å
Low-resolution limit resolution_low	131.126 Å
R factor r_factor	0.3109
R_work r_work	0.3089
R_free r_free	0.3482

Electron crystallographic structure of Catalase using a direct electron detector at 300 kV

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

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

7di8__assembly_1__model_1

7di8__assembly_1__model_1 | I(q)

7di8__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

7. Citations (1)

Electron crystallographic structure of Catalase using a direct electron detector at 300 kV

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

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

7di8__assembly_1__model_1

7di8__assembly_1__model_1 | I(q)

7di8__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

7. Citations (1)