首页> 美国卫生研究院文献>The Plant Cell >MTV1 and MTV4 Encode Plant-Specific ENTH and ARF GAP Proteins That Mediate Clathrin-Dependent Trafficking of Vacuolar Cargo from the Trans-Golgi Network
【2h】

MTV1 and MTV4 Encode Plant-Specific ENTH and ARF GAP Proteins That Mediate Clathrin-Dependent Trafficking of Vacuolar Cargo from the Trans-Golgi Network

机译:MTV1和MTV4编码植物特异的ENTH和ARF GAP蛋白它们介导网格蛋白的反式高尔基网络中的液泡货物运输。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Many soluble proteins transit through the trans-Golgi network () and the prevacuolar compartment () en route to the vacuole, but our mechanistic understanding of this vectorial trafficking step in plants is limited. In particular, it is unknown whether clathrin-coated vesicles () participate in this transport step. Through a screen for modified transport to the vacuole (mtv) mutants that secrete the vacuolar protein VAC2, we identified MTV1, which encodes an EPSIN N-TERMINAL HOMOLOGY protein, and MTV4, which encodes the ADP ribosylation factor GTPase-activating protein NEVERSHED/AGD5. MTV1 and NEV/AGD5 have overlapping expression patterns and interact genetically to transport vacuolar cargo and promote plant growth, but they have no apparent roles in protein secretion or endocytosis. MTV1 and NEV/AGD5 colocalize with clathrin at the and are incorporated into . Importantly, mtv1 nev/agd5 double mutants show altered subcellular distribution of cargo exported from the . Moreover, MTV1 binds clathrin in vitro, and NEV/AGD5 associates in vivo with clathrin, directly linking these proteins to formation. These results indicate that MTV1 and NEV/AGD5 are key effectors for -mediated trafficking of vacuolar proteins from the to the in plants.
机译:许多可溶性蛋白通过反高尔基网络()和前真空室()到达液泡,但我们对植物中矢量运输步骤的机理了解有限。特别地,网格蛋白包被的囊泡是否参与该转运步骤是未知的。通过筛选运输到分泌液泡蛋白VAC2的液泡(mtv)突变体的筛选,我们鉴定了MTV1和MTV4,MTV1编码EPSIN N-末端同源蛋白,MTV4编码ADP核糖基化因子GTPase激活蛋白NEVERSHED / AGD5 。 MTV1和NEV / AGD5具有重叠的表达模式,并通过基因相互作用来运输液泡货物并促进植物生长,但它们在蛋白质分泌或内吞作用中没有明显作用。 MTV1和NEV / AGD5在处与网格蛋白共定位,并整合入了。重要的是,mtv1 nev / agd5双重突变体显示从出口的货物的亚细胞分布发生了变化。此外,MTV1在体外结合网格蛋白,而NEV / AGD5在体内与网格蛋白缔合,直接将这些蛋白连接形成。这些结果表明,MTV1和NEV / AGD5是介导的液泡蛋白从到植物的转运的关键效应子。

著录项

相似文献

  • 外文文献
  • 中文文献
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号