9ij9

A Cryo-EM structure of Bitter taste receptor TAS2R14 with Gi complex

Method: ELECTRON MICROSCOPY Dmax: 113.8 Å Quality: GOOD

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

Guanine nucleotide-binding protein G(i) subunit alpha-1

Homo sapiens

UniProt P63096

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–354 Not recorded Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) Taste receptor type 2 member 14 × 1 (Q9NYV8) A1AEI 4-methyl-N-[(2M)-2-(1H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)pyrimidin-2-amine × 1 CLR CHOLESTEROL × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.04 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.70 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.

573 other PDB entries and 591 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GNAI1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–354; UniProt 1–354

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

Homo sapiens

UniProt P62873

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 2–340 Not recorded Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) Taste receptor type 2 member 14 × 1 (Q9NYV8) A1AEI 4-methyl-N-[(2M)-2-(1H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)pyrimidin-2-amine × 1 CLR CHOLESTEROL × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.04 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.70 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.

1260 other PDB entries and 1263 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBB1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 6–344; UniProt 2–340

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

Homo sapiens

UniProt P59768

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 2–71 Not recorded Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Taste receptor type 2 member 14 × 1 (Q9NYV8) A1AEI 4-methyl-N-[(2M)-2-(1H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)pyrimidin-2-amine × 1 CLR CHOLESTEROL × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.04 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.70 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.

1233 other PDB entries and 1236 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBG2_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–70; UniProt 2–71

Taste receptor type 2 member 14

Homo sapiens

UniProt Q9NYV8

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain R; UniProt 1–317 Not recorded Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) A1AEI 4-methyl-N-[(2M)-2-(1H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)pyrimidin-2-amine × 1 CLR CHOLESTEROL × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.04 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.70 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.

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name T2R14_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain R; PDBConstruct 1–317; UniProt 1–317

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 9ij9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9ij9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9ij9
Deposition date deposition_date2024-06-21
Structure title titleA Cryo-EM structure of Bitter taste receptor TAS2R14 with Gi complex
Keywords keywordsGPCR, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier33.83
Radius of gyration Rg (electron density) rg_electron33.84
Forward intensity I(0) i0138983000.00
Molecular weight molecular_weight96510.0 kDa
Excluded volume excluded_volume121710 ų
Envelope volume envelope_volume160860 ų
Hydration-shell volume shell_volume40398 ų
Envelope diameter envelope_diameter124.0
Shell Rg shell_rg39.31
Envelope Rg envelope_rg33.86
Shape Rg shape_rg33.86
Total Rg total_rg34.22
Total atoms total_atoms6793
Residues n_residues898
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 dmax113.8
Rg (real space) rg_real33.90
Rg uncertainty (real space) rg_real_error0.97
I(0) (real space) i0_real1.3900e+08
I(0) uncertainty (real space) i0_real_error2.0600e+06
Rg (reciprocal space) rg_reciprocal33.86
I(0) (reciprocal space) i0_reciprocal139000000.0000
Solution quality estimate total_estimate0.8775
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary36.3
Skewness Skewness skewness0.396
Kurtosis Kurtosis kurtosis-0.303
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha33850000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.871; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.921; Smooth: 0.869

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)