8VLX

HTT in complex with HAP40 and a small molecule.

• PDB DOI: https://doi.org/10.2210/pdb8VLX/pdb
• EM Map EMD-43347: EMDB EMDataResource

• Classification: UNKNOWN FUNCTION
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2024-01-12 Released: 2024-03-06 
• Deposition Author(s): Poweleit, N., Boudet, J., Doherty, E.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Discovery of a Small Molecule Ligand to the Huntingtin/HAP40 complex

Poweleit, N., Boudet, J., Doherty, E.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 395.24 kDa 
• Atom Count: 21,239 
• Modelled Residue Count: 2,710 
• Deposited Residue Count: 3,576 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Huntingtin	A	3,187	Homo sapiens	Mutation(s): 0  Gene Names: HTT, HD, IT15
UniProt & NIH Common Fund Data Resources
Find proteins for P42858 (Homo sapiens) Explore P42858  Go to UniProtKB:  P42858
PHAROS:  P42858 GTEx:  ENSG00000197386

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
40-kDa huntingtin-associated protein	B	389	Homo sapiens	Mutation(s): 0  Gene Names: F8A1, F8A2, F8A3
UniProt & NIH Common Fund Data Resources
Find proteins for P23610 (Homo sapiens) Explore P23610  Go to UniProtKB:  P23610
GTEx:  ENSG00000277150

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1ACS (Subject of Investigation/LOI)	C [auth B]	N-[(1S,2R)-2-benzylcyclopentyl]-N'-{1-[(1S)-1-(pyridin-4-yl)ethyl]piperidin-4-yl}urea C25 H34 N4 O VTYNQXSOEMAIGY-KWOQKUFVSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.2
MODEL REFINEMENT	Coot
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-06 
Deposition Author(s): Poweleit, N., Boudet, J., Doherty, E.

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Funding Organization	Location	Grant Number
Other private	United States	--

Revision History  

• Version 1.0: 2024-03-06
  Type: Initial release
  
• Version 1.1: 2024-03-13
  Changes: Structure summary