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About: RAB1

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Rab GTPases are molecular switches that regulate membrane traffic. They are active in their GTP-bound form and inactive when bound to GDP. The GTPase YPT1, and its mammalian homologue Rab1, regulate membrane-tethering events on three different pathways: autophagy, ER-Golgi, and intra-Golgi traffic. In the yeast Saccharomyces cerevisiae, many of the ATG proteins needed for macroautophagy are shared with the biosynthetic cytoplasm to the vacuole-targeting (CVT) pathway that transports certain hydrolases into the vacuole. Both pathways require YPT1; however, only the macroautophagy pathway is conserved in higher eukaryotes. In the macroautophagy pathway, Rab1 mediates the recruitment of Atg1 to the PAS. Rab1 regulates macroautophagy by recruiting its effector, Atg1, to the PAS to tether Atg9

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  • Rab1 (u kvasinky YPT1) je Rab GTPáza, která reguluje vezikulární transport ve třech různých buněčných drahách: v autofagii, transportu mezi ER a Golgi a v transportu mezi jednotlivými váčky Golgiho aparátu. Při procesu makroautofagie rekrutuje Rab1 svůj na struktury. To umožňuje přilnutí pozitivních váčků k sobě navzájem či k jiným váčkům. Na váčcích ER je Rab1 nutný pro asociaci „tethering faktoru“ s COPII-pozitivními váčky, které umožňují transport do Golgiho aparátu. V časných váčcích Golgiho aparátu zase Rab1 váže tethering proteiny a . pro Rab1 je kvasinkový , resp. jeho obdoba v savčích buňkách. (cs)
  • Rab GTPases are molecular switches that regulate membrane traffic. They are active in their GTP-bound form and inactive when bound to GDP. The GTPase YPT1, and its mammalian homologue Rab1, regulate membrane-tethering events on three different pathways: autophagy, ER-Golgi, and intra-Golgi traffic. In the yeast Saccharomyces cerevisiae, many of the ATG proteins needed for macroautophagy are shared with the biosynthetic cytoplasm to the vacuole-targeting (CVT) pathway that transports certain hydrolases into the vacuole. Both pathways require YPT1; however, only the macroautophagy pathway is conserved in higher eukaryotes. In the macroautophagy pathway, Rab1 mediates the recruitment of Atg1 to the PAS. Rab1 regulates macroautophagy by recruiting its effector, Atg1, to the PAS to tether Atg9 vesicles to each other or to other membranes. (en)
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  • Rab1 (u kvasinky YPT1) je Rab GTPáza, která reguluje vezikulární transport ve třech různých buněčných drahách: v autofagii, transportu mezi ER a Golgi a v transportu mezi jednotlivými váčky Golgiho aparátu. Při procesu makroautofagie rekrutuje Rab1 svůj na struktury. To umožňuje přilnutí pozitivních váčků k sobě navzájem či k jiným váčkům. Na váčcích ER je Rab1 nutný pro asociaci „tethering faktoru“ s COPII-pozitivními váčky, které umožňují transport do Golgiho aparátu. V časných váčcích Golgiho aparátu zase Rab1 váže tethering proteiny a . pro Rab1 je kvasinkový , resp. jeho obdoba v savčích buňkách. (cs)
  • Rab GTPases are molecular switches that regulate membrane traffic. They are active in their GTP-bound form and inactive when bound to GDP. The GTPase YPT1, and its mammalian homologue Rab1, regulate membrane-tethering events on three different pathways: autophagy, ER-Golgi, and intra-Golgi traffic. In the yeast Saccharomyces cerevisiae, many of the ATG proteins needed for macroautophagy are shared with the biosynthetic cytoplasm to the vacuole-targeting (CVT) pathway that transports certain hydrolases into the vacuole. Both pathways require YPT1; however, only the macroautophagy pathway is conserved in higher eukaryotes. In the macroautophagy pathway, Rab1 mediates the recruitment of Atg1 to the PAS. Rab1 regulates macroautophagy by recruiting its effector, Atg1, to the PAS to tether Atg9 (en)
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  • Rab1 (cs)
  • RAB1 (en)
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