myo-inositol-1,2,3,4,6-heptakisphosphate 5-kinase activity
Definition
Target type: molecularfunction
Catalysis of the reaction: 1L-myo-inositol 1,2,3,4,6-pentakisphosphate(10-) + ATP = H+ + myo-inositol hexakisphosphate(12-) + ADP. [EC:2.7.1.140, GOC:pz]
Myo-inositol-1,2,3,4,6-heptakisphosphate 5-kinase (IP7K) is an enzyme that catalyzes the phosphorylation of inositol hexakisphosphate (IP6) to inositol heptakisphosphate (IP7). Specifically, IP7K adds a phosphate group to the 5-hydroxyl group of IP6, resulting in the formation of IP7. This reaction is crucial for various cellular processes, including:
- **Signal transduction:** IP7 acts as a second messenger, participating in various signaling pathways. For example, IP7 is involved in the regulation of calcium signaling, membrane trafficking, and cytoskeletal organization.
- **Gene expression:** IP7 influences gene expression by modulating the activity of transcription factors and other regulatory proteins.
- **Cellular growth and proliferation:** IP7 plays a role in regulating cell growth and proliferation by influencing the activity of key regulatory proteins involved in these processes.
- **Cellular stress response:** IP7 participates in the cellular response to various stresses, including oxidative stress, DNA damage, and nutrient deprivation.
In summary, IP7K, through the generation of IP7, plays a crucial role in a wide range of cellular processes, underscoring its importance in maintaining normal cellular function.'
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Proteins (1)
| Protein | Definition | Taxonomy |
|---|---|---|
| Inositol polyphosphate multikinase | An inositol polyphosphate multikinase that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8NFU5] | Homo sapiens (human) |
Compounds (15)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 3',4'-dihydroxyflavone | 3',4'-dihydroxyflavone: inhibitors of arachidonic acid peroxidation | ||
| 4',6-dihydroxyflavone | 4',6-dihydroxyflavone : A dihydroxyflavone that is flavone substituted by hydroxy groups at positions 4' and 6. | dihydroxyflavone | |
| naringenin | (S)-naringenin : The (S)-enantiomer of naringenin. | (2S)-flavan-4-one; naringenin | expectorant; plant metabolite |
| eriodictyol | eriodictyol : A tetrahydroxyflavanone that is flavanone substituted by hydroxy groups at positions 5, 7, 3' and 4' respectively. eriodictyol: structure | 3'-hydroxyflavanones; tetrahydroxyflavanone | |
| quercetin | 7-hydroxyflavonol; pentahydroxyflavone | antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger | |
| acacetin | 5,7-dihydroxy-4'-methoxyflavone : A monomethoxyflavone that is the 4'-methyl ether derivative of apigenin. | dihydroxyflavone; monomethoxyflavone | anticonvulsant; plant metabolite |
| apigenin | Chamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia. | trihydroxyflavone | antineoplastic agent; metabolite |
| luteolin | 3'-hydroxyflavonoid; tetrahydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; c-Jun N-terminal kinase inhibitor; EC 2.3.1.85 (fatty acid synthase) inhibitor; immunomodulator; nephroprotective agent; plant metabolite; radical scavenger; vascular endothelial growth factor receptor antagonist | |
| kaempferol | 7-hydroxyflavonol; flavonols; tetrahydroxyflavone | antibacterial agent; geroprotector; human blood serum metabolite; human urinary metabolite; human xenobiotic metabolite; plant metabolite | |
| diosmetin | 3'-hydroxyflavonoid; monomethoxyflavone; trihydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; antioxidant; apoptosis inducer; bone density conservation agent; cardioprotective agent; plant metabolite; tropomyosin-related kinase B receptor agonist; vasodilator agent | |
| genkwanin | genkwanin : A monomethoxyflavone that is apigenin in which the hydroxy group at position 7 is methylated. genkwanin: structure | dihydroxyflavone; monomethoxyflavone | metabolite |
| 3-methylquercetin | isorhamnetin : A monomethoxyflavone that is quercetin in which the hydroxy group at position 3' is replaced by a methoxy group. | 7-hydroxyflavonol; monomethoxyflavone; tetrahydroxyflavone | anticoagulant; EC 1.14.18.1 (tyrosinase) inhibitor; metabolite |
| myricetin | 7-hydroxyflavonol; hexahydroxyflavone | antineoplastic agent; antioxidant; cyclooxygenase 1 inhibitor; food component; geroprotector; hypoglycemic agent; plant metabolite | |
| rhamnetin | rhamnetin : A monomethoxyflavone that is quercetin methylated at position 7. rhamnetin: aglycone of xanthorhamnin; from Rhamnus | monomethoxyflavone; tetrahydroxyflavone | anti-inflammatory agent; antioxidant; metabolite |
| 4',7-dihydroxyflavone | 4',7-dihydroxyflavone : A dihydroxyflavone in which the two hydroxy substituents are located at positions 4' and 7. 4',7-dihydroxyflavone: inducer of nod gene | dihydroxyflavone | metabolite |