8HEO

Crystal structure of SIAH1 SBD bound to Axin2 peptide

• PDB DOI: https://doi.org/10.2210/pdb8HEO/pdb

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


• Deposited: 2022-11-08 Released: 2023-11-15 
• Deposition Author(s): Yan, X.X., Tian, L.F.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.53 Å
• R-Value Work: 0.207 

Literature

Crystal structure of SIAH1 SBD bound to Axin2 peptide

Yan, X.X., Tian, L.F.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

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

Macromolecule Content

• Total Structure Weight: 46.25 kDa 
• Atom Count: 3,049 
• Modelled Residue Count: 388 
• Deposited Residue Count: 409 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
E3 ubiquitin-protein ligase SIAH1	A, B	194	Homo sapiens	Mutation(s): 0  Gene Names: SIAH1, HUMSIAH EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q8IUQ4 (Homo sapiens) Explore Q8IUQ4  Go to UniProtKB:  Q8IUQ4
PHAROS:  Q8IUQ4 GTEx:  ENSG00000196470

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptide from Axin-2	C [auth G]	21	Homo sapiens	Mutation(s): 0  Gene Names: AXIN2
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y2T1 (Homo sapiens) Explore Q9Y2T1  Go to UniProtKB:  Q9Y2T1
PHAROS:  Q9Y2T1 GTEx:  ENSG00000168646

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	D [auth A], E [auth A], F [auth B], G [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.53 Å
• R-Value Work: 0.207 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.818	α = 90
b = 87.932	β = 101.573
c = 59.698	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
HKL-2000	data reduction
HKL-3000	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-11-15 
Deposition Author(s): Yan, X.X., Tian, L.F.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-11-15
  Type: Initial release