5AOM

Structure of the p53 cancer mutant Y220C with bound small molecule PhiKan883

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


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


Literature

Exploiting Transient Protein States for the Design of Small-Molecule Stabilizers of Mutant P53.

Joerger, A.C., Bauer, M.R., Wilcken, R., Baud, M.G.J., Harbrecht, H., Exner, T.E., Boeckler, F.M., Spencer, J., Fersht, A.R.

(2015) Structure 23: 2246

  • DOI: 10.1016/j.str.2015.10.016
  • Primary Citation of Related Structures:  
    5AB9, 5ABA, 5AOI, 5AOJ, 5AOK, 5AOL, 5AOM

  • PubMed Abstract: 

    • The destabilizing p53 cancer mutation Y220C creates an extended crevice on the surface of the protein that can be targeted by small-molecule stabilizers. Here, we identify different classes of small molecules that bind to this crevice and determine their binding modes by X-ray crystallography ...

    The destabilizing p53 cancer mutation Y220C creates an extended crevice on the surface of the protein that can be targeted by small-molecule stabilizers. Here, we identify different classes of small molecules that bind to this crevice and determine their binding modes by X-ray crystallography. These structures reveal two major conformational states of the pocket and a cryptic, transiently open hydrophobic subpocket that is modulated by Cys220. In one instance, specifically targeting this transient protein state by a pyrrole moiety resulted in a 40-fold increase in binding affinity. Molecular dynamics simulations showed that both open and closed states of this subsite were populated at comparable frequencies along the trajectories. Our data extend the framework for the design of high-affinity Y220C mutant binders for use in personalized anticancer therapy and, more generally, highlight the importance of implementing protein dynamics and hydration patterns in the drug-discovery process.

    Organizational Affiliation: 

    MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CELLULAR TUMOR ANTIGEN P53A, B219Homo sapiensMutation(s): 5 
Gene Names: TP53, P53
UniProt & NIH Common Fund Data Resources
Find proteins for P04637 (Homo sapiens)
Explore P04637 
Go to UniProtKB:  P04637
PHAROS:  P04637
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04637
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FY8
Query on FY8
Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
G [auth B],
H [auth B]		N-(5-chloranyl-2-oxidanyl-phenyl)piperidine-4-carboxamide
C12 H15 Cl N2 O2
GIWLSSKLZAAODK-UHFFFAOYSA-N		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
E [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
F [auth A],
I [auth B]		ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
FY8 Binding MOAD:  5AOM Kd: 1.27e+6 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.16α = 90
b = 71.27β = 90
c = 105.11γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-12-16
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection, Experimental preparation, Other
  • Version 1.2: 2019-05-15
    Changes: Data collection, Experimental preparation