Article
An ATP-responsive metabolic cassette comprised of inositol tris/tetrakisphosphate kinase 1 (ITPK1) and inositol pentakisphosphate 2-kinase (IPK1) buffers diphosphosphoinositol phosphate levels.
The Biochemical journal - 31 Jul 2020
Whitfield Hayley, White Gaye, Sprigg Colleen, Riley Andrew M, Potter Barry V L, Hemmings Andrew M, Brearley Charles A
Abstract excerpt
Inositol polyphosphates are ubiquitous molecular signals in metazoans, as are their pyrophosphorylated derivatives that bear a so-called 'high-energy' phosphoanhydride bond. A structural rationale is provided for the ability of Arabidopsis inositol tris/tetrakisphosphate kinase 1 to discriminate between symmetric and enantiomeric substrates in the production of diverse symmetric and asymmetric myo-inositol...
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