Diphosphoinositol phosphates are a subclass of inositol phosphates possessing one or two high energy diphosphate groups instead of phosphoester substituents of the myo-inositol. Here we describe the enzymes responsible for their synthesis and degradation and how these may be regulated. Formation of diphosphoinositol phosphates in yeast and mammals is driven by an increase of the cellular energy charge, a lack of inorganic phosphate, and in mammals by osmotic or heat stress and in some cases by receptor mediated signaling. Known cellular actions are an improvement of the cell homeostasis by a reduction of the energy charge, increased phosphate uptake, improvement of mitochondrial performance, and an increase of insulin secretion in mammals. The underlying molecular mechanisms of action are far from being clarified but an increasing body of knowledge about molecular details has highlighted their complex participation in many cellular systems and metabolic processes.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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