9opy

Structure of the sweet receptor in the apo state

Method: ELECTRON MICROSCOPY Dmax: 166.0 Å Quality: REASONABLE

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

Taste receptor type 1 member 2

Homo sapiens

UniProt Q8TE23

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 20–839 Not recorded Taste receptor type 1 member 3 × 1 (Q925D8) ELECTRON MICROSCOPY cryo-EM buffer:pH 7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.51 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.

24 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TS1R2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–820; UniProt 20–839

Taste receptor type 1 member 3

Mus musculus

UniProt Q925D8

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 23–835 Not recorded Taste receptor type 1 member 2 × 1 (Q8TE23) ELECTRON MICROSCOPY cryo-EM buffer:pH 7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.51 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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TS1R3_MOUSE
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–813; UniProt 23–835

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.

SAXS scattering curve SAXS Profile

SAXS profile for 9opy

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9opy
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id9opy
Deposition date deposition_date2025-05-20
Structure title titleStructure of the sweet receptor in the apo state
Keywords keywordsMembrane protein, GPCR, apo state, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier53.64
Radius of gyration Rg (electron density) rg_electron55.11
Forward intensity I(0) i0417148000.00
Molecular weight molecular_weight176080.0 kDa
Excluded volume excluded_volume222740 ų
Envelope volume envelope_volume333280 ų
Hydration-shell volume shell_volume54041 ų
Envelope diameter envelope_diameter176.2
Shell Rg shell_rg51.45
Envelope Rg envelope_rg54.18
Shape Rg shape_rg55.13
Total Rg total_rg54.91
Total atoms total_atoms12388
Residues n_residues1570
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

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

Maximum dimension Dmax dmax166.0
Rg (real space) rg_real54.27
Rg uncertainty (real space) rg_real_error1.97
I(0) (real space) i0_real4.1710e+08
I(0) uncertainty (real space) i0_real_error8.3180e+06
Rg (reciprocal space) rg_reciprocal53.08
I(0) (reciprocal space) i0_reciprocal416400000.0000
Solution quality estimate total_estimate0.7225
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.1
Skewness Skewness skewness0.507
Kurtosis Kurtosis kurtosis-0.783
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha35850000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.573; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.673; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)