Biological Assembly 1  

 3D View: Structure | Electron Density

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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: 64355.96 
• Atom Count: 3652 
• Residue Count: 560 
• Unique protein chains: 2

5WXN

Structure of the LKB1 and 14-3-3 complex

• DOI: 10.2210/pdb5WXN/pdb

• Classification: PROTEIN BINDING/TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2017-01-08 Released: 2017-04-19 
• Deposition Author(s): Ding, S., Shi, Z.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.93 Å
• R-Value Free: 0.254 
• R-Value Work: 0.193 

Literature

Structure of the complex of phosphorylated liver kinase B1 and 14-3-3 zeta

Lu, Y., Ding, S., Zhou, R., Wu, J.

(2017) Acta Crystallogr F Struct Biol Commun 73: 196-201

• PubMed: 28368277 
• DOI: 10.1107/S2053230X17003521


• PubMed Abstract: 
  

The serine/threonine protein kinase liver kinase B1 (LKB1) is a tumour suppressor and plays important roles in development and metabolism. It phosphorylates AMPK and AMPK-related kinases to regulate multiple physiological processes. Mutations in LKB1 often occur in multiple cancers. LKB1 can be suppressed by 14-3-3 proteins in a phosphorylation-dependent manner. Previously, the structure of a 14-3-3ζ-LKB1 fusion protein has been reported, revealing a phosphorylation-independent binding mode of LKB1 to 14-3-3 proteins. Here, the crystal structure of phosphorylated LKB1 peptide in complex with 14-3-3ζ was solved, which provides a structural basis for the phosphorylation-dependent recognition of LKB1 by 14-3-3 proteins.

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Organizational Affiliation: 

Department of Stomatology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, People's Republic of China.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
14-3-3 protein zeta/delta	A, B	267	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
Serine/threonine-protein kinase STK11	C, D	13	Homo sapiens	Mutation(s): 0  Gene Names: STK11 (LKB1, PJS) EC: 2.7.11.1
Find proteins for Q15831 (Homo sapiens) Go to Gene View: STK11 Go to UniProtKB:  Q15831

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.93 Å
• R-Value Free: 0.254 
• R-Value Work: 0.193 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 72.771	α = 90.00
b = 85.382	β = 90.00
c = 112.738	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing
PHENIX	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2017-01-08 
• Released Date: 2017-04-19 
• Deposition Author(s): Ding, S., Shi, Z.B.

Revision History 

• Version 1.0: 2017-04-19
  Type: Initial release