SAXSdb — 6i6o

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

30S ribosomal protein S6,30S ribosomal protein S6

Thermus thermophilus HB8

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS6_THET8
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–21； UniProt 71–91 Author chain A； PDBConstruct 28–106； UniProt 3–81 Author chain B； PDBConstruct 1–21； UniProt 71–91 Author chain B； PDBConstruct 28–106； UniProt 3–81 Author chain C； PDBConstruct 1–21； UniProt 71–91 Author chain C； PDBConstruct 28–106； UniProt 3–81 Author chain D； PDBConstruct 1–21； UniProt 71–91 Author chain D； PDBConstruct 28–106； UniProt 3–81

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	6i6o
Deposition date deposition_date	2018-11-15
Structure title title	Circular permutant of ribosomal protein S6, swap helix 2, L75A mutant
Keywords keywords	Circular permutant, strand swap, local unfolding, cis-proline., RIBOSOMAL PROTEIN, designed protein; RIBOSOMAL 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.

6i6o__assembly_1__model_1

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

Download this curve (.dat)

6i6o__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6i6o__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.51 Å
Rg (electron density)	23.41 Å
Total Rg	24.27 Å
Atom count	3386
Residues	410
Excluded volume	60152 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6i6o__assembly_1__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	43.424 Å
Unit-cell length b length_b	76.461 Å
Unit-cell length c length_c	127.519 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	16

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	65.580 Å
R factor r_factor	0.1943
R_work r_work	0.1921
R_free r_free	0.2350

Description description	30S ribosomal protein S6,30S ribosomal protein S6
Molecular weight formula_weight	12425.2 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	3559

Circular permutant of ribosomal protein S6, swap helix 2, L75A mutant

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

30S ribosomal protein S6,30S ribosomal protein S6

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

6i6o__assembly_1__model_1

6i6o__assembly_1__model_1 | I(q)

6i6o__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 water

7. Citations (1)

Source organism organism	Thermus thermophilus HB8
NCBI taxonomy ID ncbi_taxonomy_id	300852
Host organism host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	173

Circular permutant of ribosomal protein S6, swap helix 2, L75A mutant

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

30S ribosomal protein S6,30S ribosomal protein S6

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

6i6o__assembly_1__model_1

6i6o__assembly_1__model_1 | I(q)

6i6o__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 water

7. Citations (1)