9DMH | pdb_00009dmh

Human muscle nAChR ACh-bound state

• PDB DOI: https://doi.org/10.2210/pdb9DMH/pdb
• EM Map EMD-47005: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  PDBTM


• Deposited: 2024-09-13 Released: 2025-04-09 
• Deposition Author(s): Li, H., Hibbs, R.E.
• Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.06 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure of human muscle AChR ACh-bound state

Li, H., Hibbs, R.E.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A2B1C1D1 Pseudo Symmetry: Cyclic - C5  (Explore in 3D)
Pseudo Stoichiometry: Homo 5-mer - A5 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 281.71 kDa 
• Atom Count: 16,919 
• Modelled Residue Count: 2,046 
• Deposited Residue Count: 2,427 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholine receptor subunit alpha	A, B [auth C]	457	Homo sapiens	Mutation(s): 0  Gene Names: CHRNA1, ACHRA, CHNRA Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P02708 (Homo sapiens) Explore P02708  Go to UniProtKB:  P02708
PHAROS:  P02708 GTEx:  ENSG00000138435
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: P02708-2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholine receptor subunit beta	C [auth E]	503	Homo sapiens	Mutation(s): 0  Gene Names: CHRNB1, ACHRB, CHRNB Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P11230 (Homo sapiens) Explore P11230  Go to UniProtKB:  P11230
PHAROS:  P11230 GTEx:  ENSG00000170175

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholine receptor subunit delta	D	517	Homo sapiens	Mutation(s): 0  Gene Names: CHRND, ACHRD Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q07001 (Homo sapiens) Explore Q07001  Go to UniProtKB:  Q07001
PHAROS:  Q07001 GTEx:  ENSG00000135902
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: Q07001-1

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetylcholine receptor subunit epsilon	E [auth B]	493	Homo sapiens	Mutation(s): 0  Gene Names: CHRNE, ACHRE Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q04844 (Homo sapiens) Explore Q04844  Go to UniProtKB:  Q04844
PHAROS:  Q04844 GTEx:  ENSG00000108556
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: Q04844-1

Oligosaccharides

Help

Entity ID: 5
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	F	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22573RC GlyCosmos:  G22573RC GlyGen:  G22573RC

Entity ID: 6
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	G, J	5		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22768VO GlyCosmos:  G22768VO GlyGen:  G22768VO

Entity ID: 7
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	H	4		N/A
Glycosylation Resources
GlyTouCan:  G81315DD GlyCosmos:  G81315DD GlyGen:  G81315DD

Entity ID: 8
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	I	5		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42769XG GlyCosmos:  G42769XG GlyGen:  G42769XG

Entity ID: 9
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	K	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
POV	N [auth E], O [auth D], P [auth B]	(2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate C42 H82 N O8 P WTJKGGKOPKCXLL-PFDVCBLKSA-N
ACH	L [auth A], M [auth C]	ACETYLCHOLINE C7 H16 N O2 OIPILFWXSMYKGL-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.06 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-04-09 
Deposition Author(s): Li, H., Hibbs, R.E.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	--

Revision History  

• Version 1.0: 2025-04-09
  Type: Initial release