Biological Assembly 1  

 3D View: Structure

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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 PQS (software)

Macromolecule Content

• Total Structure Weight: 57630.37 
• Atom Count: 3698 
• Residue Count: 506 
• Unique protein chains: 2

1QJA

14-3-3 ZETA/PHOSPHOPEPTIDE COMPLEX (MODE 2)

• DOI: 10.2210/pdb1QJA/pdb

• Classification: KINASE INHIBITOR/PEPTIDE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli DH5[alpha]


• Deposited: 1999-06-23 Released: 1999-09-15 
• Deposition Author(s): Rittinger, K., Budman, J., Xu, J., Volinia, S., Cantley, L.C., Smerdon, S.J., Gamblin, S.J., Yaffe, M.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.275 
• R-Value Work: 0.214 

Literature

Structural Analysis of 14-3-3 Phosphopeptide Complexes Identifies a Dual Role for the Nuclear Export Signal of 14-3-3 in Ligand Binding

Rittinger, K., Budman, J., Xu, J., Volinia, S., Cantley, L.C., Smerdon, S.J., Gamblin, S.J., Yaffe, M.B.

(1999) Mol.Cell 4: 153

• PubMed: 10488331 
• Primary Citation of Related Structures:  
  1QJB


• PubMed Abstract: 
  

We have solved the high-resolution X-ray structure of 14-3-3 bound to two different phosphoserine peptides, representing alternative substrate-binding motifs. These structures reveal an evolutionarily conserved network of peptide-protein interactions within all 14-3-3 isotypes, explain both binding motifs, and identify a novel intrachain phosphorylation-mediated loop structure in one of the peptides. A 14-3-3 mutation disrupting Raf signaling alters the ligand-binding cleft, selecting a different phosphopeptide-binding motif and different substrates than the wild-type protein. Many 14-3-3: peptide contacts involve a C-terminal amphipathic alpha helix containing a putative nuclear export signal, implicating this segment in both ligand and Crm1 binding. Structural homology between the 14-3-3 NES structure and those within I kappa B alpha and p53 reveals a conserved topology recognized by the Crm1 nuclear export machinery.

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Organizational Affiliation: 

Divison of Protein Structure, National Institute for Medical Research, London, United Kingdom.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
14-3-3 PROTEIN ZETA	A, B	245	Homo sapiens	Mutation(s): 0  Gene Names: YWHAZ
Find proteins for P63104 (Homo sapiens) Go to Gene View: YWHAZ Go to UniProtKB:  P63104

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
PHOSPHOPEPTIDE	Q, R	8	N/A	Mutation(s): 0
Protein Feature View is not available: No corresponding UniProt sequence found.

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	Q, R	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.275 
• R-Value Work: 0.214 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 68.380	α = 90.00
b = 70.956	β = 90.00
c = 130.560	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
DENZO	data reduction
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-06-23 
• Released Date: 1999-09-15 
• Deposition Author(s): Rittinger, K., Budman, J., Xu, J., Volinia, S., Cantley, L.C., Smerdon, S.J., Gamblin, S.J., Yaffe, M.B.

Revision History 

• Version 1.0: 1999-09-15
  Type: Initial release
• Version 1.1: 2011-05-08
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2018-02-28
  Type: Source and taxonomy