9jeq

Cryo-EM structure of Histamine-bound Histamine receptor 3 H3R G protein complex

Method: ELECTRON MICROSCOPY Dmax: 123.8 Å Quality: EXCELLENT

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

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain B; UniProt 2–340 Not recorded Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P63212) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Histamine H3 receptor × 1 (Q9Y5N1) ScFv16 × 1 HSM HISTAMINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.05 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 1
Chains and sequence ranges Author chain B; PDBConstruct 1–339; UniProt 2–340

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

Bos taurus

UniProt P63212

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain G; UniProt 5–62 Not recorded Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Histamine H3 receptor × 1 (Q9Y5N1) ScFv16 × 1 HSM HISTAMINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.05 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.

215 other PDB entries and 216 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBG2_BOVIN
Isoform
PDB entities 2
Chains and sequence ranges Author chain G; PDBConstruct 1–58; UniProt 5–62

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 3–354 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 (P63212) Histamine H3 receptor × 1 (Q9Y5N1) ScFv16 × 1 HSM HISTAMINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.05 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 3
Chains and sequence ranges Author chain A; PDBConstruct 1–352; UniProt 3–354

Histamine H3 receptor

Homo sapiens

UniProt Q9Y5N1

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain R; UniProt 1–445 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 (P63212) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) ScFv16 × 1 HSM HISTAMINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.05 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 HRH3_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain R; PDBConstruct 1–445; UniProt 1–445

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 9jeq

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9jeq
Deposition date deposition_date2024-09-03
Structure title titleCryo-EM structure of Histamine-bound Histamine receptor 3 H3R G protein complex
Keywords keywordsComplex, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier37.83
Radius of gyration Rg (electron density) rg_electron37.75
Forward intensity I(0) i0240878000.00
Molecular weight molecular_weight126410.0 kDa
Excluded volume excluded_volume158410 ų
Envelope volume envelope_volume211600 ų
Hydration-shell volume shell_volume47825 ų
Envelope diameter envelope_diameter122.8
Shell Rg shell_rg42.38
Envelope Rg envelope_rg37.67
Shape Rg shape_rg37.76
Total Rg total_rg38.00
Total atoms total_atoms8890
Residues n_residues1136
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 dmax123.8
Rg (real space) rg_real37.77
Rg uncertainty (real space) rg_real_error1.24
I(0) (real space) i0_real2.4090e+08
I(0) uncertainty (real space) i0_real_error4.2370e+06
Rg (reciprocal space) rg_reciprocal37.81
I(0) (reciprocal space) i0_reciprocal240900000.0000
Solution quality estimate total_estimate0.9002
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary47.2
Skewness Skewness skewness0.198
Kurtosis Kurtosis kurtosis-0.613
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41980000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.924; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.931

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)