8G9E

Crystal structure of the catalytic domain of human diphosphoinositol pentakisphosphate kinase 2 (PPIP5K2) in complex with AMP-PNP and 5-(PCF2P)-IP5, an analog of 5-IP7

  • Classification: TRANSFERASE
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2023-02-21 Released: 2024-01-03 
  • Deposition Author(s): Wang, H., Shears, S.B.
  • Funding Organization(s): National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.124 
  • R-Value Observed: 0.127 

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Ligand Structure Quality Assessment 


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Literature

Fluorination Influences the Bioisostery of Myo-Inositol Pyrophosphate Analogs.

Hostachy, S.Wang, H.Zong, G.Franke, K.Riley, A.M.Schmieder, P.Potter, B.V.L.Shears, S.B.Fiedler, D.

(2023) Chemistry 29: e202302426-e202302426

  • DOI: https://doi.org/10.1002/chem.202302426
  • Primary Citation of Related Structures:  
    8G9C, 8G9D, 8G9E

  • PubMed Abstract: 

    Inositol pyrophosphates (PP-IPs) are densely phosphorylated messenger molecules involved in numerous biological processes. PP-IPs contain one or two pyrophosphate group(s) attached to a phosphorylated myo-inositol ring. 5PP-IP 5 is the most abundant PP-IP in human cells. To investigate the function and regulation by PP-IPs in biological contexts, metabolically stable analogs have been developed. Here, we report the synthesis of a new fluorinated phosphoramidite reagent and its application for the synthesis of a difluoromethylene bisphosphonate analog of 5PP-IP 5 . Subsequently, the properties of all currently reported analogs were benchmarked using a number of biophysical and biochemical methods, including co-crystallization, ITC, kinase activity assays and chromatography. Together, the results showcase how small structural alterations of the analogs can have notable effects on their properties in a biochemical setting and will guide in the choice of the most suitable analog(s) for future investigations.


  • Organizational Affiliation

    Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125, Berlin, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Inositol hexakisphosphate and diphosphoinositol-pentakisphosphate kinase 2330Homo sapiensMutation(s): 0 
Gene Names: PPIP5K2HISPPD1KIAA0433VIP2
EC: 2.7.4.21 (PDB Primary Data), 2.7.4.24 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for O43314 (Homo sapiens)
Explore O43314 
Go to UniProtKB:  O43314
PHAROS:  O43314
GTEx:  ENSG00000145725 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO43314
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
YUT (Subject of Investigation/LOI)
Query on YUT

Download Ideal Coordinates CCD File 
C [auth A]{difluoro[(R)-hydroxy{[(1s,2R,3S,4S,5R,6S)-2,3,4,5,6-pentakis(phosphonooxy)cyclohexyl]oxy}phosphoryl]methyl}phosphonic acid
C7 H19 F2 O26 P7
WXRZISRVPNTHSS-QWBQGLJISA-N
ANP (Subject of Investigation/LOI)
Query on ANP

Download Ideal Coordinates CCD File 
B [auth A]PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
MG (Subject of Investigation/LOI)
Query on MG

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.124 
  • R-Value Observed: 0.127 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.082α = 90
b = 109.899β = 90
c = 41.09γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction
REFMACphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United States1ZIAES080046

Revision History  (Full details and data files)

  • Version 1.0: 2024-01-03
    Type: Initial release