7OQ8

Ternary complex of 14-3-3 sigma, Estrogen Receptor alfa phosphopeptide, and WQ178

• PDB DOI: https://doi.org/10.2210/pdb7OQ8/pdb

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


• Deposited: 2021-06-02 Released: 2022-06-22 
• Deposition Author(s): Centorrino, F., Ottmann, C.
• Funding Organization(s): H2020 Marie Curie Actions of the European Commission

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.43 Å
• R-Value Free: 
  0.206 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.180 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.181 (Depositor) 

Starting Model: experimental

Literature

A crystallography-based study of fragment extensions into the 14-3-3 binding groove

Centorrino, F., Wu, Q., Cossar, P., Brunsveld, L., Ottmann, C.

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.

Macromolecule Content

• Total Structure Weight: 30.87 kDa 
• Atom Count: 2,172 
• Modelled Residue Count: 233 
• Deposited Residue Count: 268 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
14-3-3 protein sigma	A [auth C]	253	Homo sapiens	Mutation(s): 0  Gene Names: SFN, HME1
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
Estrogen receptor	B	15	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P03372 (Homo sapiens) Explore P03372  Go to UniProtKB:  P03372
PHAROS:  P03372 GTEx:  ENSG00000091831

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
0B7 (Subject of Investigation/LOI)	G [auth C], H [auth C]	~{N}-[(5-carbamimidoyl-3-phenyl-thiophen-2-yl)methyl]-1~{H}-indole-6-carboxamide C21 H18 N4 O S AWDSOCIOIXYPGZ-UHFFFAOYSA-N
CL	F [auth C]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	C, D [auth C], E [auth C]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CME	A [auth C]	L-PEPTIDE LINKING	C5 H11 N O3 S2		CYS
TPO	B	L-PEPTIDE LINKING	C4 H10 N O6 P		THR

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.43 Å
• R-Value Free:  0.206 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.180 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.181 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.018	α = 90
b = 110.832	β = 90
c = 60.932	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
DIALS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-06-22 
Deposition Author(s): Centorrino, F., Ottmann, C.

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Funding Organization	Location	Grant Number
H2020 Marie Curie Actions of the European Commission	European Union	675179

Revision History  

• Version 1.0: 2022-06-22
  Type: Initial release
  
• Version 2.0: 2024-01-31
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Polymer sequence, Refinement description, Source and taxonomy, Structure summary
• Version 2.1: 2024-03-13
  Changes: Derived calculations
• Version 2.2: 2024-10-09
  Changes: Structure summary