9ek0

Human M5 muscarinic acetylcholine receptor complex with mini-Gq and iperoxo

Method: ELECTRON MICROSCOPY Dmax: 115.7 Å Quality: GOOD

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

Muscarinic acetylcholine receptor M5

Homo sapiens

UniProt P08912

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 2–236 Chain R; UniProt 422–521 Not recorded Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P54311) Guanine nucleotide-binding protein Gq alpha subunit chimera × 1 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) IXO 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACM5_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain R; PDBConstruct 9–243; UniProt 2–236 Author chain R; PDBConstruct 244–343; UniProt 422–521

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

Rattus norvegicus

UniProt P54311

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 Muscarinic acetylcholine receptor M5 × 1 (P08912) Guanine nucleotide-binding protein Gq alpha subunit chimera × 1 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) IXO 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

161 other PDB entries and 162 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBB1_RAT
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 12–350; 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 G; UniProt 1–68 Not recorded Muscarinic acetylcholine receptor M5 × 1 (P08912) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P54311) Guanine nucleotide-binding protein Gq alpha subunit chimera × 1 IXO 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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 4
Chains and sequence ranges Author chain G; PDBConstruct 1–68; UniProt 1–68

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 9ek0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9ek0
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id9ek0
Deposition date deposition_date2024-11-30
最后修订 last_revision2025-10-08
Structure title titleHuman M5 muscarinic acetylcholine receptor complex with mini-Gq and iperoxo
Keywords keywordsG protein-coupled receptor, acetylcholine binding, seven transmembrane protein, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier34.12
Radius of gyration Rg (electron density) rg_electron34.15
Forward intensity I(0) i0154386000.00
Molecular weight molecular_weight100310.0 kDa
Excluded volume excluded_volume125960 ų
Envelope volume envelope_volume165520 ų
Hydration-shell volume shell_volume41498 ų
Envelope diameter envelope_diameter123.0
Shell Rg shell_rg39.31
Envelope Rg envelope_rg34.35
Shape Rg shape_rg34.14
Total Rg total_rg34.57
Total atoms total_atoms7043
Residues n_residues890
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 dmax115.7
Rg (real space) rg_real34.22
Rg uncertainty (real space) rg_real_error1.01
I(0) (real space) i0_real1.5440e+08
I(0) uncertainty (real space) i0_real_error2.5540e+06
Rg (reciprocal space) rg_reciprocal34.16
I(0) (reciprocal space) i0_reciprocal154400000.0000
Solution quality estimate total_estimate0.8691
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary35.2
Skewness Skewness skewness0.430
Kurtosis Kurtosis kurtosis-0.257
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha43450000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.853; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.969; Smooth: 0.767

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)