8SUV

CHIP-TPR in complex with the C-terminus of CHIC2

• PDB DOI: https://doi.org/10.2210/pdb8SUV/pdb

• Classification: LIGASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-05-13 Released: 2024-03-20 
• Deposition Author(s): Cupo, A.R., McDermott, L.E., DeSilva, A.R., Callahan, M., Nix, J.C., Gestwicki, J.E., Page, R.C.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.63 Å
• R-Value Free: 0.290 
• R-Value Work: 0.274 
• R-Value Observed: 0.274 

Starting Model: experimental

Literature

Interaction with the membrane-anchored protein CHIC2 constrains the ubiquitin ligase activity of CHIP

Callahan, M., Hodul, M., Carroll, E., Ravalin, M., Nadel, C., de Silva, A., Cupo, A., McDermott, L., Nix, J., Page, R., Kao, A., Gestwicki, J.

(2023) bioRxiv 

• DOI: https://doi.org/10.1101/2023.07.17.549407

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: isothermal titration calorimetry

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 69.77 kDa 
• Atom Count: 4,819 
• Modelled Residue Count: 548 
• Deposited Residue Count: 604 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
E3 ubiquitin-protein ligase CHIP	A, B, C, D	139	Homo sapiens	Mutation(s): 0  Gene Names: STUB1, CHIP, PP1131 EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UNE7 (Homo sapiens) Explore Q9UNE7  Go to UniProtKB:  Q9UNE7
PHAROS:  Q9UNE7 GTEx:  ENSG00000103266

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cysteine-rich hydrophobic domain-containing protein 2	E [auth F], F [auth G], G [auth H], H [auth I]	12	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UKJ5 (Homo sapiens) Explore Q9UKJ5  Go to UniProtKB:  Q9UKJ5
PHAROS:  Q9UKJ5 GTEx:  ENSG00000109220

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	I [auth A], J [auth C], K [auth C], L [auth D]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.63 Å
• R-Value Free: 0.290 
• R-Value Work: 0.274 
• R-Value Observed: 0.274 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.526	α = 90
b = 82.356	β = 90.03
c = 78.394	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-20 
Deposition Author(s): Cupo, A.R., McDermott, L.E., DeSilva, A.R., Callahan, M., Nix, J.C., Gestwicki, J.E., Page, R.C.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35 GM128595

Revision History  

• Version 1.0: 2024-03-20
  Type: Initial release