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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク RANBP2 ： ウィキペディア英語版 RANBP2 RAN binding protein 2 (RANBP2) is protein which in humans is encoded by the ''RANBP2'' gene. It is also known as nucleoporin 358 (Nup358) since it is a member nucleoporin family that makes-up the nuclear pore complex. RanBP2 has a mass of 358 kDa. == Function == RAN is a small GTP-binding protein of the RAS superfamily. Ran GTPase is a master regulatory switch, which among other functions, controls the shuttling of proteins between the nuclear and cytoplasm compartments of the cell. Ran GTPase controls a variety of cellular functions through its interactions with other proteins. The ''RanBP2'' gene encodes a very large RAN-binding protein that localizes to cytoplasmic filaments emanating from the nuclear pore complex. RanBP2/Nup358 is a giant scaffold and mosaic cyclophilin-related nucleoporin implicated in controlling selective processes of the Ran-GTPase cycle. RanBP2 is composed of multiple domains. Each domain of RanBP2 selectively and directly interacts with distinct proteins such as Ran GTPase, importin-beta, exportin-1/CRM1, red opsin, subunits of the proteasome, cox11 and the kinesin-1 isoforms, KIF5B and KIF5C. Another partner of RanBP2 is the E2 enzyme UBC9. RanBP2 strongly enhances SUMO1 transfer from UBC9 to the SUMO1 target SP100. Another target for SUMOylation is RanGAP which is the GTPase activating protein for Ran. SUMO-RanGAP interacts with a domain near the carboxyl terminus of RanBP2. These findings place sumoylation at the cytoplasmic filaments of the nuclear pore complex and suggest that, for some substrates, modification and nuclear import are linked events. The pleiotropic (multifunctional) role of RanBP2 reflects its interaction with multiple partners, each presenting distinct cellular or molecular functions. This gene is partially duplicated in a gene cluster that lies in a hot spot for recombination on human chromosome 2q. 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「RANBP2」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.