7W7G

Structure of Mammalian NALCN-FAM155A-UNC79-UNC80 quanternary complex

• PDB DOI: https://doi.org/10.2210/pdb7W7G/pdb
• EM Map EMD-32344: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Mus musculus, Rattus norvegicus
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• Deposited: 2021-12-04 Released: 2022-05-18 
• Deposition Author(s): Chen, L., Kang, Y.
• Funding Organization(s): Ministry of Science and Technology (MoST, China), National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A1B1C1D1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 922.91 kDa 
• Atom Count: 38,143 
• Modelled Residue Count: 4,758 
• Deposited Residue Count: 8,185 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein unc-79 homolog	A	2,654	Mus musculus	Mutation(s): 0  Gene Names: Unc79
UniProt
Find proteins for E5CYJ9 (Mus musculus) Explore E5CYJ9  Go to UniProtKB:  E5CYJ9

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein unc-80 homolog	B	3,326	Mus musculus	Mutation(s): 0  Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q8BLN6 (Mus musculus) Explore Q8BLN6  Go to UniProtKB:  Q8BLN6
IMPC:  MGI:2652882

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium leak channel non-selective protein	C	1,738	Rattus norvegicus	Mutation(s): 0  Gene Names: Nalcn, Nca, Rb21, Vgcnl1 Membrane Entity: Yes
UniProt
Find proteins for Q6Q760 (Rattus norvegicus) Explore Q6Q760  Go to UniProtKB:  Q6Q760

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Transmembrane protein FAM155A	D	467	Mus musculus	Mutation(s): 0  Gene Names: Fam155a Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q8CCS2 (Mus musculus) Explore Q8CCS2  Go to UniProtKB:  Q8CCS2
IMPC:  MGI:2142765

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG (Subject of Investigation/LOI)	G [auth C], H [auth C], I [auth C]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
ZN (Subject of Investigation/LOI)	E [auth A], F [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-05-18 
Deposition Author(s): Chen, L., Kang, Y.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, China)	China	2106YFA0502004
National Natural Science Foundation of China (NSFC)	China	31622021
National Natural Science Foundation of China (NSFC)	China	31821091
National Natural Science Foundation of China (NSFC)	China	31870833

Revision History  

• Version 1.0: 2022-05-18
  Type: Initial release
  
• Version 1.1: 2022-12-07
  Changes: Database references