SAXSdb — 6r5x

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

WD-40 repeat protein

Nostoc punctiforme

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B2J0I0_NOSP7
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–86； UniProt 752–833 Author chain B； PDBConstruct 5–86； UniProt 752–833 Author chain C； PDBConstruct 5–86； UniProt 752–833 Author chain D； PDBConstruct 5–86； UniProt 752–833

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	6r5x
Deposition date deposition_date	2019-03-25
Structure title title	8-bladed beta-propeller formed by four 2-bladed fragments
Keywords keywords	Repeat Protein, Fragment Amplification, Protein Evolution, Protein Design, UNKNOWN FUNCTION; UNKNOWN FUNCTION
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.

6r5x__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6r5x__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6r5x__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	20.32 Å
Rg (electron density)	19.07 Å
Total Rg	20.11 Å
Atom count	2344
Residues	310
Excluded volume	41169 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6r5x__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6r5x__assembly_2__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 (2)

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Unit-cell length a length_a	55.235 Å
Unit-cell length b length_b	119.673 Å
Unit-cell length c length_c	84.153 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	32

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	1.700 Å
Low-resolution limit resolution_low	32.300 Å
R factor r_factor	0.1998
R_work r_work	0.1978
R_free r_free	0.2386

Description description	WD-40 repeat protein
Molecular weight formula_weight	9053.9 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	2678

8-bladed beta-propeller formed by four 2-bladed fragments

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

WD-40 repeat 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

6r5x__assembly_2__model_1

6r5x__assembly_2__model_1 | I(q)

6r5x__assembly_2__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 water

7. Citations (2)

Source organism organism	Nostoc punctiforme
NCBI taxonomy ID ncbi_taxonomy_id	272131
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	314

8-bladed beta-propeller formed by four 2-bladed fragments

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

WD-40 repeat 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

6r5x__assembly_2__model_1

6r5x__assembly_2__model_1 | I(q)

6r5x__assembly_2__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 water

7. Citations (2)