SAXSdb — 3d8m

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

Baseplate protein, Receptor binding protein

Lactococcus phage p2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 3	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q1RNF7_9CAUD
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 63–165； UniProt 162–264

Baseplate protein, Receptor binding protein

Lactococcus phage p2

UniProt Q9G096

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 3	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9G096_9CAUD
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–62； UniProt 1–62

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	3d8m
Deposition date deposition_date	2008-05-23
Structure title title	Crystal structure of a chimeric receptor binding protein from lactococcal phages subspecies TP901-1 and p2
Keywords keywords	lactococcal phage p2, lactococcal phage TP901-1, receptor binding protein, VIRUS-VIRAL PROTEIN COMPLEX; VIRUS/VIRAL PROTEIN
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.

3d8m__assembly_1__model_1

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

Download this curve (.dat)

3d8m__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3d8m__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.68 Å
Rg (electron density)	26.17 Å
Total Rg	26.72 Å
Atom count	3411
Residues	447
Excluded volume	60177 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3d8m__assembly_1__model_1`	trimeric （3）	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 (1)

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	3d8mA01
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	140 — Helix Hairpins
Homologous superfamily homologous superfamily	2190 —

Domain ID domain_id	3d8mA02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1830 — Phage tail base-plate Siphoviridae RBP, head domain

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Unit-cell length a length_a	85.833 Å
Unit-cell length b length_b	85.833 Å
Unit-cell length c length_c	85.833 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	12

Space group space_group	P 21 3
Space-group number int_tables_number	198
Crystal system crystal_system	—

Resolution resolution	3.350 Å
Low-resolution limit resolution_low	60.690 Å
R factor r_factor	0.2285
R_work r_work	0.2211
R_free r_free	0.2744

Description description	Baseplate protein, Receptor binding protein
Molecular weight formula_weight	17872.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1137

Crystal structure of a chimeric receptor binding protein from lactococcal phages subspecies TP901-1 and p2

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

Baseplate protein, Receptor binding protein

State in the Current Structure

Other States of the Same Protein in the Database

Baseplate protein, Receptor binding protein

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

3d8m__assembly_1__model_1

3d8m__assembly_1__model_1 | I(q)

3d8m__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Lactococcus phage p2
NCBI taxonomy ID ncbi_taxonomy_id	254252
Host organism host_organism	Escherichia coli

Crystal structure of a chimeric receptor binding protein from lactococcal phages subspecies TP901-1 and p2

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

Baseplate protein, Receptor binding protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Baseplate protein, Receptor binding protein

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

3d8m__assembly_1__model_1

3d8m__assembly_1__model_1 | I(q)

3d8m__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)