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・ Foxleigh
・ Foxleigh coal mine
・ Foxley
・ Foxley (disambiguation)
・ Foxley (surname)
・ Foxley River, Prince Edward Island
・ Foxley Wood
・ Foxley Wood, Purley
・ FOXM1
・ Foxmail
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FOXO1
・ FOXO3
・ FOXO4
・ Foxon Park
・ FOXP1
・ FOXP2
・ FOXP3
・ FOXP4
・ FoxPro
・ FOXRED1
・ Foxrock
・ FOXSI Sounding Rocket
・ Foxsons Mill, Staincliffe
・ Foxsports.com
・ Foxstar Productions


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FOXO1 : ウィキペディア英語版
FOXO1

Forkhead box protein O1 (FOXO1) also known as forkhead in rhabdomyosarcoma is a protein that in humans is encoded by the ''FOXO1'' gene. FOXO1 is a transcription factor that plays important roles in regulation of gluconeogenesis and glycogenolysis by insulin signaling, and is also central to the decision for a preadipocyte to commit to adipogenesis. It is primarily regulated through phosphorylation on multiple residues; its transcriptional activity is dependent on its phosphorylation state.
== Mechanism of action ==
In its un-phosphorylated state, FOXO1 is localized to the nucleus, where it binds to the insulin response sequence located in the promoter for glucose 6-phosphatase and increases its rate of transcription. FOXO1, through increasing transcription of glucose-6-phosphatase, indirectly increases the rate of hepatic glucose production. However, when FOXO1 is phosphorylated by Akt on Thr-24, Ser-256, and Ser-319, it is excluded from the nucleus, where it is then ubiquitinated and degraded. The phosphorylation of FOXO1 by Akt subsequently decreases the hepatic glucose production through a decrease in transcription of glucose 6-phosphatase.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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