Characterizing Enzymes of the Diphosphoinositol Polyphosphate Phosphohydrolase (DIPP) Family

  • Lucinda Winward
  • Rajagopal Sharada Kilari
  • Stephen T. SafranyEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2091)


The diphosphoinositol polyphosphate phosphohydrolases are a subset of the Nudix hydrolase family of enzymes. As such, they metabolize a wide range of substrates, including diphosphoinositol polyphosphates (inositol diphosphates, inositol pyrophosphates), dinucleotide phosphates, nucleosides as well as 5-phosphoribosyl 1-pyrophosphate and inorganic polyphosphate. Here, we describe protocols to optimize these enzymes, with consideration to buffer composition and sample preparation and how to analyze the metabolism of these substrates using high-performance liquid chromatography, giving advice where pitfalls are commonly encountered.

Key words

Inositol diphosphate Inositol pyrophosphate Nudix DIPP Diadenosine polyphosphate Polyphosphate 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Lucinda Winward
    • 1
  • Rajagopal Sharada Kilari
    • 2
  • Stephen T. Safrany
    • 3
    Email author
  1. 1.Division of Cell Signalling, School of Life SciencesUniversity of DundeeDundeeUK
  2. 2.Department of PharmacyUniversity of WolverhamptonWolverhamptonUK
  3. 3.RCSI-BahrainAdliyaBahrain

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