SAXSdb — 3jac

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

Piezo-type mechanosensitive ion channel component 1

Mus musculus

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein homooligomer Homooligomer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain A； UniProt 1959–2547 Chain B； UniProt 1959–2547 Chain C； UniProt 1959–2547	Not recorded	No other associated polymer	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.2；25 mM NaPIPES, 140 mM NaCl, 2 mM DTT and 0.026% (w/v) C12E10 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 4.80 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 3JAC	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
11YE Curved structure of mPiezo1 in plasma membrane vesicles Deposited 2026-03-18	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain C 1–2547（2547 aa） Chain D 1–2547（2547 aa） Chain E 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.70 Å
11ZC Flat structure of mPiezo1 in plasma membrane vesicles Deposited 2026-03-19	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain C 1–2547（2547 aa） Chain E 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.00 Å
4RAX A regulatory domain of an ion channel Deposited 2014-09-11	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2214–2457（244 aa） Fragment：UNP residues 2214-2457	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；291 K；0.2M Magnesium chloride, 0.1M Hepes pH 7.5, 25% w/w PEG3350, VAPOR DIFFUSION, SITTING DROP, temperature 291K	Resolution 1.45 Å R-free 0.176
5Z10 Structure of the mechanosensitive Piezo1 channel Deposited 2017-12-22	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain B 1–2547（2547 aa） Chain C 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE；After a 15 sec waiting time, the grids were blotted for 3.5 sec and plunged into liquid ethane	Resolution 3.97 Å
6B3R Structure of the mechanosensitive channel Piezo1 Deposited 2017-09-22	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain A 1–2547（2547 aa） Chain C 1–2547（2547 aa） Chain E 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE；blot for 1 second with -1 force before plunging	Resolution 3.80 Å
6BPZ Structure of the mechanically activated ion channel Piezo1 Deposited 2017-11-27	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1137–1597（461 aa） Chain A 1657–2547（891 aa） Chain B 1137–1597（461 aa） Chain B 1657–2547（891 aa） Chain C 1137–1597（461 aa） Chain C 1657–2547（891 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
6LQI Cryo-EM structure of the mouse Piezo1 isoform Piezo1.1 Deposited 2020-01-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain B 1–2547（2547 aa） Chain C 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.50 Å
7WLT the Curved Structure of mPIEZO1 in Lipid Bilayer Deposited 2022-01-13	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain C 1–2547（2547 aa） Chain E 1–2547（2547 aa）	Not recorded	PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 21 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 3 P5S O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.46 Å
7WLU The Flattened Structure of mPIEZO1 in Lipid Bilayer Deposited 2022-01-13	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain C 1–2547（2547 aa） Chain E 1–2547（2547 aa）	Not recorded	PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.81 Å
8IMZ Cryo-EM structure of mouse Piezo1-MDFIC complex (composite map) Deposited 2023-03-07	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain A 1–2547（2547 aa） Chain B 1–2547（2547 aa） Chain C 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.66 Å
8IXN Curved structure of mPIEZO1-S2472E Deposited 2023-04-01	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain C 1–2547（2547 aa） Chain D 1–2547（2547 aa）	Mutation：S2472E Mutation：S2472E Mutation：S2472E	PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 6 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 3 P5S O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.3 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.07 Å
8IXO Intermediate structure of mPIEZO1-S2472E Deposited 2023-04-01	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric	Chain A 1–2547（2547 aa） Chain B 1–2547（2547 aa） Chain F 1–2547（2547 aa）	Mutation：S2472E Mutation：S2472E Mutation：S2472E	PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 6 P5S O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine × 6 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.3 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.00 Å
9VED The cryo-EM structure of mouse Piezo1-MDFI complex Deposited 2025-06-09	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric	Chain A 1–2547（2547 aa） Chain B 1–2547（2547 aa） Chain C 1–2547（2547 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.63 Å

13 other PDB entries and 13 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	PIEZ1_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1959–2547； UniProt 1959–2547 Author chain B； PDBConstruct 1959–2547； UniProt 1959–2547 Author chain C； PDBConstruct 1959–2547； UniProt 1959–2547

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	3jac
Deposition date deposition_date	2015-06-05
Structure title title	Cryo-EM study of a channel
Keywords keywords	Cryo-EM, single particle, METAL TRANSPORT; METAL TRANSPORT
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	56.10 Å
Radius of gyration Rg (electron density) rg_electron	55.43 Å
Forward intensity I(0) i0	910131000.00
Molecular weight molecular_weight	221270.0 kDa
Excluded volume excluded_volume	263400 Å³
Envelope volume envelope_volume	568740 Å³
Hydration-shell volume shell_volume	85460 Å³
Envelope diameter envelope_diameter	179.6 Å
Shell Rg shell_rg	58.55 Å
Envelope Rg envelope_rg	54.07 Å
Shape Rg shape_rg	55.46 Å
Total Rg total_rg	55.44 Å
Total atoms total_atoms	15741
Residues n_residues	2754
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	182.3 Å
Rg (real space) rg_real	55.85 Å
Rg uncertainty (real space) rg_real_error	1.65 Å
I(0) (real space) i0_real	9.1010e+08
I(0) uncertainty (real space) i0_real_error	1.6970e+07
Rg (reciprocal space) rg_reciprocal	56.30 Å
I(0) (reciprocal space) i0_reciprocal	910700000.0000
Solution quality estimate total_estimate	0.8627
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	84.7 Å
Skewness Skewness skewness	0.019
Kurtosis Kurtosis kurtosis	-0.577
Angular range angular_range	— – 0.1400 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	159300000.0000
Real-space data points n_real_points	29
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.806; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.800

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Description description	Piezo-type mechanosensitive ion channel component 1
Molecular weight formula_weight	234834.1 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	15741

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来源 Source

来源生物 organism	Mus musculus
通用名 common_name	mouse
NCBI Class编号 ncbi_taxonomy_id	10090
宿主生物 host_organism	Homo sapiens

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8. Citations (1)

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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	1

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

Resolution resolution	4.80 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	30021

fit	/app/data/saxs_computation/ja/3jac/3jac.fit
pddf	/app/data/pr_computation/ja/3jac/3jac.pr.out
profile	/app/data/saxs_computation/ja/3jac/3jac.dat

Cryo-EM study of a channel

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

Piezo-type mechanosensitive ion channel component 1

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)