SAXSdb — 2x8p

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

CHOLINE-BINDING PROTEIN F

STREPTOCOCCUS PNEUMONIAE

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	SULFATE ION × 1 (1R,5S)-8-METHYL-8-AZABICYCLO[3.2.1]OCT-3-YL (2R)-3-HYDROXY-2-PHENYLPROPANOATE × 2 GLYCEROL × 2 CHOLINE ION × 5 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8DR52_STRR6
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–311； UniProt 28–338

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	2x8p
Deposition date deposition_date	2010-03-10
Structure title title	Crystal Structure of CbpF in Complex with Atropine by Co- Crystallization
Keywords keywords	CHOLINE-BINDING PROTEIN, LIPID-BINDING-PROTEIN; CHOLINE-BINDING 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.

2x8p__assembly_1__model_1

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

Download this curve (.dat)

2x8p__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2x8p__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.34 Å
Rg (electron density)	31.98 Å
Total Rg	31.96 Å
Atom count	2675
Residues	311
Excluded volume	47321 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2x8p__assembly_1__model_1`	monomeric （1）	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 (6)

Entity 1 Entity 1 polymer

Description description	CHOLINE-BINDING PROTEIN F
Molecular weight formula_weight	36322.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2949

NTTGGRFVDKDNRKYYVKDDHKAIYWHKIDGKTYYFGDIGEMVVGWQYLEIPGTGYRDNLFDNQPVNEIGLQEKWYYFGQDGALLEQTDKQVLEAKTSENTGKVYGEQYPLSAEKRTYYFDNNYAVKTGWIYEDGNWYYLNKLGNFGDDSYNPLPIGEVAKGWTQDFHVTIDIDRSKPAPWYYLDASGKMLTDWQKVNGKWYYFGSSGSMATGWKYVRGKWYYLDNKNGDMKTGWQYLGNKWYYLRSSGAMVTGWYQDGLTWYYLNAGNGDMKTGWFQVNGKWYYAYSSGALAVNTTVDGYSVNYNGEWVQ

Source Source

Source organism organism	STREPTOCOCCUS PNEUMONIAE
NCBI taxonomy ID ncbi_taxonomy_id	171101
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	(1R,5S)-8-METHYL-8-AZABICYCLO[3.2.1]OCT-3-YL (2R)-3-HYDROXY-2-PHENYLPROPANOATE
Molecular weight formula_weight	289.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	CHOLINE ION
Molecular weight formula_weight	104.2 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	274

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	2x8pA01
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	270 — left handed beta-beta-3-solenoid
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	2x8pA02
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	270 — left handed beta-beta-3-solenoid
Homologous superfamily homologous superfamily	10 — Cholin Binding

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Unit-cell length a length_a	52.540 Å
Unit-cell length b length_b	116.077 Å
Unit-cell length c length_c	73.165 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	4

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

Resolution resolution	2.270 Å
Low-resolution limit resolution_low	24.730 Å
R factor r_factor	0.2260
R_work r_work	0.2260
R_free r_free	0.2880

Crystal Structure of CbpF in Complex with Atropine by Co- Crystallization

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

CHOLINE-BINDING PROTEIN F

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

2x8p__assembly_1__model_1

2x8p__assembly_1__model_1 | I(q)

2x8p__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Crystal Structure of CbpF in Complex with Atropine by Co- Crystallization

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

CHOLINE-BINDING PROTEIN F

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

2x8p__assembly_1__model_1

2x8p__assembly_1__model_1 | I(q)

2x8p__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)