Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 55782.59 
• Atom Count: 3635 
• Residue Count: 490 
• Unique protein chains: 1

5IQP

14-3-3 PROTEIN TAU ISOFORM

• DOI: 10.2210/pdb5IQP/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2016-03-11 Released: 2016-03-23 
• Deposition Author(s): Xiao, B., Smerdon, S.J., Gamblin, S.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.602 Å
• R-Value Free: 0.239 
• R-Value Work: 0.186 

Literature

Structure of a 14-3-3 protein and implications for coordination of multiple signalling pathways

Xiao, B., Smerdon, S.J., Jones, D.H., Dodson, G.G., Soneji, Y., Aitken, A., Gamblin, S.J.

(1995) Nature 376: 188-191

• PubMed: 7603573 
• DOI: 10.1038/376188a0


• PubMed Abstract: 
  

A broad range of organisms and tissues contain 14-3-3 proteins, which have been associated with many diverse functions including critical roles in signal transduction pathways, exocytosis and cell cycle regulation. We report here the crystal structure of the human T-cell 14-3-3 isoform (tau) dimer at 2.6 A resolution. Each monomer (Mr 28K) is composed of an unusual arrangement of nine antiparallel alpha-helices organized as two structural domains. The dimer creates a large, negatively charged channel approximately 35 A broad, 35 A wide and 20 A deep. Overall, invariant residues line the interior of this channel whereas the more variable residues are distributed on the outer surface. At the base of this channel is a 16-residue segment of 14-3-3 which has been implicated in the binding of 14-3-3 to protein kinase C.

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Organizational Affiliation: 

Division of Protein Structure, National Institute for Medical Research, Mill Hill, London, UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
14-3-3 protein theta	A, B	245	Homo sapiens	Mutation(s): 0  Gene Names: YWHAQ
Find proteins for P27348 (Homo sapiens) Go to Gene View: YWHAQ Go to UniProtKB:  P27348

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A, B	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.602 Å
• R-Value Free: 0.239 
• R-Value Work: 0.186 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 70.290	α = 90.00
b = 79.300	β = 90.00
c = 101.000	γ = 90.00

Software Package:

Software Name	Purpose
PHENIX	refinement
MLPHARE	phasing
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2016-03-11 
• Released Date: 2016-03-23 
• Deposition Author(s): Xiao, B., Smerdon, S.J., Gamblin, S.J.

Revision History 

• Version 1.0: 2016-03-23
  Type: Initial release