SAXSdb — 4bls

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

NTPASE P4

PSEUDOMONAS PHAGE PHI12

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q94M05_9VIRU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–331； UniProt 1–331 Author chain B； PDBConstruct 1–331； UniProt 1–331 Author chain C； PDBConstruct 1–331； UniProt 1–331

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	4bls
Deposition date deposition_date	2013-05-04
Structure title title	P4 PROTEIN FROM BACTERIOPHAGE PHI12 Q278A MUTANT IN COMPLEX WITH AMPcPP
Keywords keywords	HYDROLASE, PACKAGING, CYSTOVIRIDAE; HYDROLASE
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.

4bls__assembly_1__model_1

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

Download this curve (.dat)

4bls__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4bls__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	38.03 Å
Rg (electron density)	37.09 Å
Total Rg	37.51 Å
Atom count	13896
Residues	1814
Excluded volume	245350 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4bls__assembly_1__model_1`	hexameric （6）	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) 9 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d4blsa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d4blsb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d4blsc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

CATH v4.4 (6 domains)

Domain ID domain_id	4blsA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	4blsA02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	4blsB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	4blsB02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	4blsC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	4blsC02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	105.631 Å
Unit-cell length b length_b	132.328 Å
Unit-cell length c length_c	159.938 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	24

Space group space_group	I 2 2 2
Space-group number int_tables_number	23
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2575
R_work r_work	0.2566
R_free r_free	0.2743

Description description	NTPASE P4
Molecular weight formula_weight	35093.4 kDa
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	6948

P4 PROTEIN FROM BACTERIOPHAGE PHI12 Q278A MUTANT IN COMPLEX WITH AMPcPP

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

NTPASE P4

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

4bls__assembly_1__model_1

4bls__assembly_1__model_1 | I(q)

4bls__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 non-polymer

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (3 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Source organism organism	PSEUDOMONAS PHAGE PHI12
Common name common_name	BACTERIOPHAGE PHI12
NCBI taxonomy ID ncbi_taxonomy_id	161736
Host organism host_organism	ESCHERICHIA COLI

P4 PROTEIN FROM BACTERIOPHAGE PHI12 Q278A MUTANT IN COMPLEX WITH AMPcPP

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

NTPASE P4

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

4bls__assembly_1__model_1

4bls__assembly_1__model_1 | I(q)

4bls__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 non-polymer

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (3 domains)

CATH v4.4 (6 domains)

7. Citations (1)