8ANB | pdb_00008anb

14-3-3 sigma sirtuin-1 phospho-peptide complex

• PDB DOI: https://doi.org/10.2210/pdb8ANB/pdb

• Classification: PEPTIDE BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2022-08-05 Released: 2023-08-16 
• Deposition Author(s): Weyand, M., Steegborn, C., Debbert, L.
• Funding Organization(s): German Research Foundation (DFG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 
  0.204 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.176 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.177 (Depositor) 

Literature

14-3-3 sigma sirtuin-1 phospho-peptide complex

Weyand, M., Steegborn, 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 and generated by PISA (software)

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content 

• Total Structure Weight: 27.31 kDa 
• Atom Count: 2,387 
• Modeled Residue Count: 234 
• 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	231	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
Sirtuin 1 deacetylase	B [auth P]	11	Homo sapiens	Mutation(s): 0  EC: 2.3.1 (UniProt), 2.3.1.286 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q96EB6 (Homo sapiens) Explore Q96EB6  Go to UniProtKB:  Q96EB6
PHAROS:  Q96EB6 GTEx:  ENSG00000096717

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	B [auth P]	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free:  0.204 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.176 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.177 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.01	α = 90
b = 95.55	β = 90
c = 79.94	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-08-16 
Deposition Author(s): Weyand, M., Steegborn, C., Debbert, L.

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Funding Organization	Location	Grant Number
German Research Foundation (DFG)	Germany	DFG STE-1701/15

Revision History  

• Version 1.0: 2023-08-16
  Type: Initial release
  
• Version 1.1: 2024-10-16
  Changes: Structure summary