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VDAC1
Voltage-dependent anion-selective channel protein 1 is a protein that in humans is encoded by the ''VDAC1'' gene on chromosome 5.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=7416 )〕 This protein is a voltage-dependent anion channel and shares high structural homology with the other VDAC isoforms, which are involved in the regulation of cell metabolism, mitochondrial apoptosis, and spermatogenesis. In particular, VDAC1 is the major calcium ion transport channel and is implicated in cancer and Parkinson’s Disease (PD). == Structure ==
The three VDAC isoforms in human are highly conserved, particularly with respect to their 3D structure. VDACs form a wide β-barrel structure, inside of which the N-terminal resides to partially close the pore. For VDAC1, this barrel-like channel is composed of 19 amphipathic β-strands, and the end of the N-terminal contains α-helix segments. The N-terminal is proposed to as a gate to the pore via swinging motions facilitated by a short glycine-containing motif. Additionally, the N-terminal serves as a docking site for HK1 binding.
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「VDAC1」の詳細全文を読む
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