6Z19

Crystal structure of P8C9 bound to CK2alpha


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Development of small cyclic peptides targeting the CK2 alpha / beta interface.

Atkinson, E.L.Iegre, J.D'Amore, C.Brear, P.Salvi, M.Hyvonen, M.Spring, D.R.

(2022) Chem Commun (Camb) 58: 4791-4794

  • DOI: https://doi.org/10.1039/d2cc00707j
  • Primary Citation of Related Structures:  
    6YZH, 6Z19, 7QUX

  • PubMed Abstract: 

    In this work, an iterative cycle of enzymatic assays, X-ray crystallography, molecular modelling and cellular assays were used to develop a functionalisable chemical probe for the CK2α/β PPI. The lead peptide, P8C9, successfully binds to CK2α at the PPI site, is easily synthesisable and functionalisable, highly stable in serum and small enough to accommodate further optimisation.


  • Organizational Affiliation

    Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, UK. spring@ch.cam.ac.uk.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Casein kinase II subunit alphaA [auth B]328Homo sapiensMutation(s): 0 
Gene Names: CSNK2A1CK2A1
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P68400 (Homo sapiens)
Explore P68400 
Go to UniProtKB:  P68400
PHAROS:  P68400
GTEx:  ENSG00000101266 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP68400
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
P2B [auth C]8Homo sapiensMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 7 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download Ideal Coordinates CCD File 
C [auth B]ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
PEG
Query on PEG

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I [auth B]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
SO4
Query on SO4

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J [auth B],
K [auth B],
L [auth B],
M [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

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F [auth B],
O [auth B],
P [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT
Query on ACT

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D [auth B],
E [auth B]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
MG
Query on MG

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G [auth B],
H [auth B]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
NA
Query on NA

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N [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.262α = 90
b = 46.262β = 90
c = 345.763γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-05-26
    Type: Initial release
  • Version 1.1: 2023-03-29
    Changes: Database references
  • Version 1.2: 2024-02-07
    Changes: Data collection, Refinement description