4QLI | pdb_00004qli

A novel phospho-switch in the linker region of the snail zinc finger protein which regulates 14-3-3 association, DNA binding and epithelial-mesenchymal differentiation

• PDB DOI: https://doi.org/10.2210/pdb4QLI/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-06-12 Released: 2015-06-17 
• Deposition Author(s): Bier, D., Ottmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 
  0.203 (Depositor), 0.209 (DCC) 
• R-Value Work: 
  0.169 (Depositor), 0.181 (DCC) 
• R-Value Observed: 
  0.171 (Depositor) 

Literature

A novel phospho-switch in the linker region of the snail zinc finger protein which regulates 14-3-3 association, DNA binding and epithelial-mesenchymal differentiation

Liu, Y., Prokop, J.W., Peng, H., Karar, J., White, D., Hou, Z., Qin, Y.S., Bier, D., Ottmann, C., Waxman, S., Halazonetis, T.D., Rauscher III, F.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

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

Macromolecule Content 

• Total Structure Weight: 27.42 kDa 
• Atom Count: 2,211 
• Modeled Residue Count: 242 
• Deposited Residue Count: 242 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
14-3-3 protein sigma	A	236	Homo sapiens	Mutation(s): 0  Gene Names: HME1, NM_006142, SFN
UniProt & NIH Common Fund Data Resources
Find proteins for P31947 (Homo sapiens) Explore P31947  Go to UniProtKB:  P31947
PHAROS:  P31947 GTEx:  ENSG00000175793

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Zinc finger protein SNAI1	B	6	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for O95863 (Homo sapiens) Explore O95863  Go to UniProtKB:  O95863
PHAROS:  O95863 GTEx:  ENSG00000124216

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG	C [auth A], D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
TPO	B	L-PEPTIDE LINKING	C4 H10 N O6 P		THR

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free:  0.203 (Depositor), 0.209 (DCC) 
• R-Value Work:  0.169 (Depositor), 0.181 (DCC) 
• R-Value Observed: 0.171 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.3	α = 90
b = 111.9	β = 90
c = 62.4	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-06-17 
Deposition Author(s): Bier, D., Ottmann, C.

Revision History  

• Version 1.0: 2015-06-17
  Type: Initial release
  
• Version 1.1: 2024-11-27
  Changes: Data collection, Database references, Derived calculations, Structure summary