IP6K2 geeni, Kr. 3p21.31.

IP6K2 geeni, kr. 3.

IP6K2 fosforyloi inositolihexakisfosfaattia IP7- muotoon, jolloin se on IP5-pyrofosfaattia . Sitä merkitään joko IP7:ksi.
Mahdollisesti se voi konvertoida myös IP5 muodon, jossa on inositolirenkaan fosfaatit asemissa 1,3,4,5,6, muotoon PP-Ins4, difosfoinositol-tetrakisfosfaatti , jolloin se on IP4- pyrofosfaattia. Ja vaikuttaa kasvusupressiota ja IFN-beetan apoptoottisia aktiivisuuksia joissain ovariaalisyövissä.
diphosphoinositol pentakisphosphate (InsP7/PP-InsP5)
Lähde: https://www.ncbi.nlm.nih.gov/gene/51447

P6K2 inositol hexakisphosphate kinase 2 [ Homo sapiens (human) ]

Gene ID: 51447, updated on 6-Dec-2016

Summary

Official Symbol

IP6K2provided by HGNC

Official Full Name

inositol hexakisphosphate kinase 2 provided by HGNC

Primary source

HGNC:HGNC:17313

See related

Ensembl:ENSG00000068745 MIM:606992; Vega:OTTHUMG00000133543

Gene type

protein coding

RefSeq status

REVIEWED

Organism

Homo sapiens

Lineage

Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo

Also known as

PIUS; IHPK2

Summary

This gene encodes a protein that belongs to the inositol phosphokinase (IPK) family. This protein is likely responsible for the conversion of inositol hexakisphosphate (InsP6) to diphosphoinositol pentakisphosphate (InsP7/PP-InsP5).

It may also convert 1,3,4,5,6-pentakisphosphate (InsP5) to PP-InsP4 and affect the growth suppressive and apoptotic activities of interferon-beta in some ovarian cancers. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

Tästä pyrofosfaattia tekevästä entsyymistä IP6K2 on useita artikkeleita.

Related articles in PubMed

1. Casein kinase-2 mediates cell survival through phosphorylation and degradation of inositol hexakisphosphate kinase-2. Chakraborty A, et al. Proc Natl Acad Sci U S A, 2011 Feb 8. PMID 21262846, Free PMC Article
2. Inositol hexakisphosphate kinase-2, a physiologic mediator of cell death. Nagata E, et al. J Biol Chem, 2005 Jan 14. PMID 15533939
3. Inositol hexakisphosphate kinase 2 sensitizes ovarian carcinoma cells to multiple cancer therapeutics. Morrison BH, et al. Oncogene, 2002 Mar 14. PMID 11896621, Free PMC Article
4. IP6K structure and the molecular determinants of catalytic specificity in an inositol phosphate kinase family. Wang H, et al. Nat Commun, 2014 Jun 24. PMID 24956979, Free PMC Article
5. Inositol hexakisphosphate kinase 2 mediates growth suppressive and apoptotic effects of interferon-beta in ovarian carcinoma cells. Morrison BH, et al. J Biol Chem, 2001 Jul 6. PMID 11337497, Free PMC Article
   

See all (33) citations in PubMed
See citations in PubMed for homologs of this gene provided by HomoloGene

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

1. An alpha-helical pair and a rare, two-turn 310 helix, that together form a substrate-binding pocket of IP6K2.
2. FGF2-signaling involves the inositol polyphosphate cascade, including inositol hexakisphosphate kinase (IP6K), and demonstrate that IP6K1,2 regulates Runx2 and osteoblast gene expression.
3. Genetic polymorphisms in IP6K2 gene is associated with autoimmune disease.
4. Casein kinase-2 mediates cell survival through phosphorylation and degradation of inositol hexakisphosphate kinase-2.
5. Gene disruption of IP6K2 in colorectal cancer cells selectively impairs p53-mediated apoptosis, instead favoring cell-cycle arrest. IP6K2 acts by binding directly to p53 and decreasing expression of proarrest gene targets
6. InsP6K2 is a physiologic mediator of cell death
7. IHPK2-TRAF2 binding leads to attenuation of TAK1- and NF-kappaB-mediated signaling and is partially responsible for the apoptotic activity of IHPK2.
8. IHPK2 over expression enhances sensitivity of ovarian carcinoma cells to radiation, IFN-beta, caspase 8 and DR4
   

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Muistiin inositolihexakisfosfaattikinaasista
24.1. 2016