7trs

Human M4 muscarinic acetylcholine receptor complex with Gi1 and the endogenous agonist acetylcholine

Method: ELECTRON MICROSCOPY Dmax: 119.8 Å Quality: GOOD

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 (P59768) Antibody fragment scFv16 × 1 Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Muscarinic acetylcholine receptor M4 × 1 (P08173) ACH ACETYLCHOLINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.80 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.

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 11–349; 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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain G; UniProt 2–71 Not recorded Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Antibody fragment scFv16 × 1 Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Muscarinic acetylcholine receptor M4 × 1 (P08173) ACH ACETYLCHOLINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.80 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.

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 2
Chains and sequence ranges Author chain G; PDBConstruct 1–70; UniProt 2–71

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 1–354 Mutation:S47N, G203A, E245A, A326S 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) Antibody fragment scFv16 × 1 Muscarinic acetylcholine receptor M4 × 1 (P08173) ACH ACETYLCHOLINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.80 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.

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 4
Chains and sequence ranges Author chain A; PDBConstruct 1–354; UniProt 1–354

Muscarinic acetylcholine receptor M4

Homo sapiens

UniProt P08173

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 1–241 Chain R; UniProt 388–479 Fragment:UNP residues 1-241,388-479 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) Antibody fragment scFv16 × 1 Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) ACH ACETYLCHOLINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.80 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.

37 other PDB entries and 39 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACM4_HUMAN
Isoform
PDB entities 5
Chains and sequence ranges Author chain R; PDBConstruct 9–249; UniProt 1–241 Author chain R; PDBConstruct 250–341; UniProt 388–479

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 7trs

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7trs
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7trs
Deposition date deposition_date2022-01-30
Structure title titleHuman M4 muscarinic acetylcholine receptor complex with Gi1 and the endogenous agonist acetylcholine
Keywords keywords7 transmembrane receptor, SIGNALING PROTEIN-IMMUNE SYSTEM complex; SIGNALING PROTEIN/IMMUNE SYSTEM
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier36.98
Radius of gyration Rg (electron density) rg_electron36.97
Forward intensity I(0) i0222518000.00
Molecular weight molecular_weight121960.0 kDa
Excluded volume excluded_volume153080 ų
Envelope volume envelope_volume199510 ų
Hydration-shell volume shell_volume46176 ų
Envelope diameter envelope_diameter123.6
Shell Rg shell_rg41.74
Envelope Rg envelope_rg36.82
Shape Rg shape_rg36.96
Total Rg total_rg37.29
Total atoms total_atoms8571
Residues n_residues1121
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 dmax119.8
Rg (real space) rg_real36.92
Rg uncertainty (real space) rg_real_error0.76
I(0) (real space) i0_real2.2250e+08
I(0) uncertainty (real space) i0_real_error3.2440e+06
Rg (reciprocal space) rg_reciprocal36.96
I(0) (reciprocal space) i0_reciprocal222500000.0000
Solution quality estimate total_estimate0.8998
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary47.4
Skewness Skewness skewness0.186
Kurtosis Kurtosis kurtosis-0.636
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0002
Highest regularization parameter α highest_alpha36950000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.934; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.973; Smooth: 0.919

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id7trsB01
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id7trsH01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7trsH02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)