Inositol pyrophosphates

Structure, enzymology and function

Christopher John Barker, Christopher Illies, Gian Carlo Gaboardi, Per Olof Berggren

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

The stereochemistry of the inositol backbone provides a platform on which to generate a vast array of distinct molecular motifs that are used to convey information both in signal transduction and many other critical areas of cell biology. Diphosphoinositol phosphates, or inositol pyrophosphates, are the most recently characterized members of the inositide family. They represent a new frontier with both novel targets within the cell and novel modes of action. This includes the proposed pyrophosphorylation of a unique subset of proteins. We review recent insights into the structures of these molecules and the properties of the enzymes which regulate their concentration. These enzymes also act independently of their catalytic activity via protein-protein interactions. This unique combination of enzymes and products has an important role in diverse cellular processes including vesicle trafficking, endo- and exocytosis, apoptosis, telomere length regulation, chromatin hyperrecombination, the response to osmotic stress, and elements of nucleolar function.

Original languageEnglish
Pages (from-to)3851-3871
Number of pages21
JournalCellular and Molecular Life Sciences
Volume66
Issue number24
DOIs
StatePublished - Jan 1 2009
Externally publishedYes

Fingerprint

Diphosphates
Inositol
Enzymes
Osmoregulation
Proteins
Inositol Phosphates
Telomere
Exocytosis
Endocytosis
Chromatin
Cell Biology
Signal Transduction
Apoptosis

Keywords

  • Diphosphoinositol pentakisphosphate kinase
  • Diphosphoinositol phosphate
  • Diphosphoinositol polyphosphate phosphohydrolase
  • Inositol hexakisphosphate kinase
  • Inositol phosphate
  • Inositol pyrophosphate

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology
  • Molecular Medicine
  • Pharmacology
  • Cellular and Molecular Neuroscience

Cite this

Barker, C. J., Illies, C., Gaboardi, G. C., & Berggren, P. O. (2009). Inositol pyrophosphates: Structure, enzymology and function. Cellular and Molecular Life Sciences, 66(24), 3851-3871. https://doi.org/10.1007/s00018-009-0115-2

Inositol pyrophosphates : Structure, enzymology and function. / Barker, Christopher John; Illies, Christopher; Gaboardi, Gian Carlo; Berggren, Per Olof.

In: Cellular and Molecular Life Sciences, Vol. 66, No. 24, 01.01.2009, p. 3851-3871.

Research output: Contribution to journalArticle

Barker, CJ, Illies, C, Gaboardi, GC & Berggren, PO 2009, 'Inositol pyrophosphates: Structure, enzymology and function', Cellular and Molecular Life Sciences, vol. 66, no. 24, pp. 3851-3871. https://doi.org/10.1007/s00018-009-0115-2
Barker, Christopher John ; Illies, Christopher ; Gaboardi, Gian Carlo ; Berggren, Per Olof. / Inositol pyrophosphates : Structure, enzymology and function. In: Cellular and Molecular Life Sciences. 2009 ; Vol. 66, No. 24. pp. 3851-3871.
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