3UAL

Crystal Structure of 14-3-3 epsilon with Mlf1 peptide

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

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This is version 1.2 of the entry. See complete history. 


Literature

Structural insights of the MLF1/14-3-3 interaction.

Molzan, M., Weyand, M., Rose, R., Ottmann, C.

(2012) FEBS J 279: 563-571

  • DOI: 10.1111/j.1742-4658.2011.08445.x
  • Primary Citation of Related Structures:  
    3UAL, 3UBW

  • PubMed Abstract: 

    • Myeloid leukaemia factor 1 (MLF1) binds to 14-3-3 adapter proteins by a sequence surrounding Ser34 with the functional consequences of this interaction largely unknown. We present here the high-resolution crystal structure of this binding motif [MLF1(29-42)pSer34] in complex with 14-3-3ε and analyse the interaction with isothermal titration calorimetry ...

    Myeloid leukaemia factor 1 (MLF1) binds to 14-3-3 adapter proteins by a sequence surrounding Ser34 with the functional consequences of this interaction largely unknown. We present here the high-resolution crystal structure of this binding motif [MLF1(29-42)pSer34] in complex with 14-3-3ε and analyse the interaction with isothermal titration calorimetry. Fragment-based ligand discovery employing crystals of the binary 14-3-3ε/MLF1(29-42)pSer34 complex was used to identify a molecule that binds to the interface rim of the two proteins, potentially representing the starting point for the development of a small molecule that stabilizes the MLF1/14-3-3 protein-protein interaction. Such a compound might be used as a chemical biology tool to further analyse the 14-3-3/MLF1 interaction without the use of genetic methods. Database Structural data are available in the Protein Data Bank under the accession number(s) 3UAL [14-3-3ε/MLF1(29-42)pSer34 complex] and 3UBW [14-3-3ε/MLF1(29-42)pSer34/3-pyrrolidinol complex] Structured digital abstract •  14-3-3 epsilon and MLF1 bind by x-ray crystallography (View interaction) •  14-3-3 epsilon and MLF1 bind by isothermal titration calorimetry (View Interaction: 1, 2).

    Organizational Affiliation: 

    Chemical Genomics Centre of the Max-Planck-Society, Dortmund, Germany.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 protein epsilonA232Homo sapiensMutation(s): 0 
Gene Names: YWHAE
Find proteins for P62258 (Homo sapiens)
Explore P62258 
Go to UniProtKB:  P62258
NIH Common Fund Data Resources
PHAROS:  P62258
GTEx:  ENSG00000108953
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Myeloid leukemia factor 1B [auth P]14Homo sapiensMutation(s): 0 
Gene Names: MLF1
Find proteins for P58340 (Homo sapiens)
Explore P58340 
Go to UniProtKB:  P58340
NIH Common Fund Data Resources
PHAROS:  P58340
GTEx:  ENSG00000178053
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TBU
Query on TBU
Download Ideal Coordinates CCD File 
 C [auth A], D [auth A], E [auth A]TERTIARY-BUTYL ALCOHOL
C4 H10 O
DKGAVHZHDRPRBM-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		B [auth P]L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.98α = 90
b = 81.46β = 90
c = 82.84γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-01-25
    Type: Initial release
  • Version 1.1: 2012-02-08
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Refinement description