SAXSdb — 7raz

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

Small-conductance mechanosensitive channel

;Escherichia coli 'BL21-Gold(DE3)pLysS AG' ;

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 7	PHOSPHATIDYLETHANOLAMINE × 7	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MSCS_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–286； UniProt 1–286 Author chain B； PDBConstruct 1–286； UniProt 1–286 Author chain C； PDBConstruct 1–286； UniProt 1–286 Author chain D； PDBConstruct 1–286； UniProt 1–286 Author chain E； PDBConstruct 1–286； UniProt 1–286 Author chain F； PDBConstruct 1–286； UniProt 1–286 Author chain G； PDBConstruct 1–286； UniProt 1–286

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	7raz
Deposition date deposition_date	2021-07-05
Structure title title	Small conductance mechanosensitive channel MscS
Keywords keywords	small conductance mechanosensitive channel MscS, NCMN, ion channel, membrane protein, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

7raz__assembly_1__model_1

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

Download this curve (.dat)

7raz__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7raz__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.18 Å
Rg (electron density)	35.19 Å
Total Rg	36.02 Å
Atom count	10472
Residues	1330
Excluded volume	189040 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7raz__assembly_1__model_1`	heptameric （7）	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) 7 domains

CATH v4.4 (7 domains)

Domain ID domain_id	7razA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razD01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razE01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razF01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	7razG01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.40 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	275000

Description description	Small-conductance mechanosensitive channel
Molecular weight formula_weight	30922.9 kDa
Source method src_method	man
Copy count entity_count	7

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G
Atom count atom_count	10472

Small conductance mechanosensitive channel MscS

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

Small-conductance mechanosensitive channel

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

7raz__assembly_1__model_1

7raz__assembly_1__model_1 | I(q)

7raz__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

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) 7 domains

CATH v4.4 (7 domains)

7. Citations (1)

Source organism organism	;Escherichia coli 'BL21-Gold(DE3)pLysS AG' ;
NCBI taxonomy ID ncbi_taxonomy_id	866768
Host organism host_organism	;Escherichia coli 'BL21-Gold(DE3)pLysS AG' ;

Description description	PHOSPHATIDYLETHANOLAMINE
Molecular weight formula_weight	734.0 kDa
Source method src_method	syn
Copy count entity_count	7

Small conductance mechanosensitive channel MscS

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

Small-conductance mechanosensitive channel

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

7raz__assembly_1__model_1

7raz__assembly_1__model_1 | I(q)

7raz__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

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) 7 domains

CATH v4.4 (7 domains)

7. Citations (1)