SAXSdb — 1pvu

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

Pvu II

Proteus vulgaris

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	T2P2_PROVU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–156； UniProt 2–157 Author chain B； PDBConstruct 1–156； UniProt 2–157

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	1pvu
Deposition date deposition_date	1995-03-09
Structure title title	THE CRYSTAL STRUCTURE OF PVUII ENDONUCLEASE REVEALS EXTENSIVE STRUCTURAL HOMOLOGIES TO ECORV
Keywords keywords	TYPE II RESTRICTION ENDONUCLEASE; TYPE II RESTRICTION ENDONUCLEASE
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.

1pvu__assembly_1__model_1

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

Download this curve (.dat)

1pvu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1pvu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.02 Å
Rg (electron density)	24.13 Å
Total Rg	24.85 Å
Atom count	2544
Residues	308
Excluded volume	45500 Å³
Maximum q	0.500 Å⁻¹

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

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1pvua_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.52 — Restriction endonuclease-like
Superfamily Superfamily superfamily	c.52.1 — Restriction endonuclease-like
Family Family family	c.52.1.6 — Restriction endonuclease PvuII

Domain ID domain_id	d1pvub_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.52 — Restriction endonuclease-like
Superfamily Superfamily superfamily	c.52.1 — Restriction endonuclease-like
Family Family family	c.52.1.6 — Restriction endonuclease PvuII

CATH v4.4 (2 domains)

Domain ID domain_id	1pvuA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	210 — PvuII Endonuclease; Chain A
Homologous superfamily homologous superfamily	10 — PVUII Endonuclease, subunit A

Domain ID domain_id	1pvuB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	210 — PvuII Endonuclease; Chain A
Homologous superfamily homologous superfamily	10 — PVUII Endonuclease, subunit A

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Unit-cell length a length_a	84.650 Å
Unit-cell length b length_b	106.460 Å
Unit-cell length c length_c	47.000 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	8

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.400 Å
Low-resolution limit resolution_low	6.000 Å
R factor r_factor	0.1840
R_work r_work	0.1840
R_free r_free	—

Description description	Pvu II
Molecular weight formula_weight	18239.8 kDa
EC 编号 ec_number	3.1.21.4
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2623

THE CRYSTAL STRUCTURE OF PVUII ENDONUCLEASE REVEALS EXTENSIVE STRUCTURAL HOMOLOGIES TO ECORV

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

Pvu II

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

1pvu__assembly_1__model_1

1pvu__assembly_1__model_1 | I(q)

1pvu__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

Source organism organism	Proteus vulgaris
NCBI taxonomy ID ncbi_taxonomy_id	585

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	79

THE CRYSTAL STRUCTURE OF PVUII ENDONUCLEASE REVEALS EXTENSIVE STRUCTURAL HOMOLOGIES TO ECORV

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

Pvu II

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

1pvu__assembly_1__model_1

1pvu__assembly_1__model_1 | I(q)

1pvu__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)