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Inositol Pyrophosphate InsP8 Acts as an Intracellular Phosphate Signal in Arabidopsis
Molecular Plant, 2019 The maintenance of cellular phosphate (Pi) homeostasis is of great importance in living organisms. The SPX domain-containing proteins, SPX1, from both Arabidopsis and rice have been proposed to act as sensors of Pi status.
Jinsong Dong +2 more
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Phosphorylation of Proteins by Inositol Pyrophosphates
Science, 2004The inositol pyrophosphates IP 7 and IP 8 contain highly energetic pyrophosphate bonds. Although implicated in various biologic functions, their molecular sites of action have not been clarified. Using radiolabeled IP 7
Adolfo, Saiardi +4 more
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Inositol pyrophosphates: metabolism and signaling
Cellular and Molecular Life Sciences, 2006Inositol pyrophosphates belong to the diverse family of inositol polyphosphate species that have a range of signaling functions. Since the discovery of inositol pyrophosphates in the early 1990s, enormous progress has been achieved in characterising this class of molecules, linking their biological presence to a wide range of cellular functions ...
M, Bennett +3 more
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IP8: A quantitatively minor inositol pyrophosphate signaling molecule that punches above its weight.
Advances in Biological Regulation, 2023The inositol pyrophosphates (PP-IPs) are specialized members of the wider inositol phosphate signaling family that possess functionally significant diphosphate groups.
C. Gu +4 more
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Two inositol hexakisphosphate kinases drive inositol pyrophosphate synthesis in plants [PDF]
Plant Journal, 2014 SummaryInositol pyrophosphates are unique cellular signaling molecules with recently discovered roles in energy sensing and metabolism. Studies in eukaryotes have revealed that these compounds have a rapid turnover, and thus only small amounts accumulate.
Janet L Donahue +2 more
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Eukaryotic Phosphate Homeostasis: The Inositol Pyrophosphate Perspective [PDF]
Trends in Biochemical Sciences, 2017 Phosphate, as a cellular energy currency, essentially drives most biochemical reactions defining living organisms, and thus its homeostasis must be tightly regulated. Investigation into the role of inositol pyrophosphates (PP-IPs) has provided a novel perspective on the regulation of phosphate homeostasis.
Cristina Azevedo, Adolfo Saiardi
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Understanding Inositol Pyrophosphates
Science's STKE, 2007Inositol pyrophosphates are relatively poorly understood, highly phosphorylated members of the inositol polyphosphate family. Two studies describe related advances in signaling involving inositol pyrophosphates. Mulugu et al . purified an inositol pyrophosphate synthase from yeast, called Vip1. Lee et al
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Inositol pyrophosphates: between signalling and metabolism
Biochemical Journal, 2013The present review will explore the insights gained into inositol pyrophosphates in the 20 years since their discovery in 1993. These molecules are defined by the presence of the characteristic ‘high energy’ pyrophosphate moiety and can be found ubiquitously in eukaryotic cells. The enzymes that synthesize them are similarly well distributed and can be
Miranda S C, Wilson +2 more
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Photo-releasable derivatives of inositol pyrophosphates
2020The specific non-invasive control of intracellular signaling events requires advanced tools that enter cells by diffusion and are controllable by light. Here, we detail the synthesis and application of membrane-permeant caged inositol pyrophosphates with respect to cell entry and cell distribution.
Hauke, Sebastian +3 more
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Inositol pyrophosphates: structure, enzymology and function
Cellular and Molecular Life Sciences, 2009The 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 ...
Christopher John, Barker +3 more
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