5WXN

Structure of the LKB1 and 14-3-3 complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.93 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.200 

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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

  • DOI: 10.1107/S2053230X17003521
  • Primary Citation of Related Structures:  
    5WXN

  • 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 ...

    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.

    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
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 protein zeta/deltaA, B267Homo sapiensMutation(s): 0 
Gene Names: YWHAZ
Find proteins for P63104 (Homo sapiens)
Explore P63104 
Go to UniProtKB:  P63104
NIH Common Fund Data Resources
PHAROS  P63104
GTEx  ENSG00000164924
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase STK11C, D13Homo sapiensMutation(s): 0 
Gene Names: STK11, LKB1, PJS
EC: 2.7.11.1
Find proteins for Q15831 (Homo sapiens)
Explore Q15831 
Go to UniProtKB:  Q15831
NIH Common Fund Data Resources
PHAROS  Q15831
GTEx  ENSG00000118046
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO		C,DL-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.93 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.771α = 90
b = 85.382β = 90
c = 112.738γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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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