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TUG-UBL1 protein domain : ウィキペディア英語版 | TUG-UBL1 protein domain
In molecular biology, TUG-UBL1 refers to a protein that regulates a glucose transporter called GLUT4. TUG-UBL1 is an acronym for Tether containing UBX domain for GLUT4-Ubiquitin Like 1, this is encoded for by the gene, ASPSCR1. ==Function== When insulin is secreted, glucose uptake of cells increase, since insulin stimulates GLUT4 to move from the intracellular surface to the outer surface. In a similar fashion, TUG retains GLUT4 within unstimulated celled, but when insulin is secreted it causes GLUT4 to dissociate and so GLUT4 moves to the cell surface. TUG binds directly and specifically to a large intracellular loop in GLUT4. It acts as a tethering protein, which along with other proteins, retain GLUT4 within cells in the absence of insulin. Additionally, when the protein TUG becomes disrupted it appears to accelerate the degradation of GLUT4 in lysosomes. However, the functional role of the TUG–UBL1 domain remains to be elucidated.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「TUG-UBL1 protein domain」の詳細全文を読む
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