Myosin VI and its interacting protein LMTK2 regulate tubule formation and transport to the endocytic recycling compartment.

Myosin VI and its interacting protein LMTK2 regulate tubule formation and transport to the endocytic recycling compartment.
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DOI:
10.1242/jcs.014217
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发表时间:
2007-12-15
影响因子:
4
通讯作者:
Buss, Folma
Buss, Folma
中科院分区:
生物学2区
文献类型:
--
作者:
Chibalina, Margarita V.;Seaman, Matthew N. J.;Miller, Christopher C.;Kendrick-Jones, John;Buss, Folma

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肌球蛋白VI是一种以肌动蛋白为基础的逆行运动蛋白,在细胞内吞和分泌膜转运途径中起着重要作用。肌球蛋白VI在这些细胞内途径中的靶向和功能由许多特异性结合伴侣介导。在本文中,我们已经确定了一个新的肌球蛋白VI结合伴侣,狐猴酪氨酸激酶2(LMTK 2),这是第一个跨膜蛋白和激酶,直接结合到肌球蛋白VI。LMTK 2结合到C-末端肌球蛋白VI尾部的WWY位点,该位点与内吞衔接蛋白Dab 2相同。当肌球蛋白VI或LMTK 2被siRNA耗尽时,转铁蛋白受体(TfR)被捕获在肿胀的内体中,并且内吞再循环途径中的小管形成显著减少,这表明两种蛋白质都是将货物(例如TfR)从早期内体转运到内吞再循环区室所需的。
Myosin VI is an actin-based retrograde motor protein, which plays a crucial role in both endocytic and secretory membrane trafficking pathways. Myosin VI’s targeting to and function in these intracellular pathways is mediated by a number of specific binding partners. In this paper we have identified a new myosin VI binding partner, Lemur tyrosine kinase 2 (LMTK2), which is the first transmembrane protein and kinase that directly binds to myosin VI. LMTK2 binds to the WWY site in the C-terminal myosin VI tail, the same site as the endocytic adaptor protein Dab2. When either myosin VI or LMTK2 is depleted by siRNA, the transferrin receptor (TfR) is trapped in swollen endosomes and tubule formation in the endocytic recycling pathway is dramatically reduced, showing that both proteins are required for the transport of cargo such as the TfR from early endosomes to the endocytic recycling compartment.
在生长因子刺激后,肌球蛋白VI在高尔基体复合物和成纤维细胞的前缘及其磷酸化和募集到A431细胞的膜褶皱中的定位。
DOI: 10.1083/jcb.143.6.1535
发表时间: 1998-12-14
影响因子: 7.8
作者:
Buss, F;Kendrick-Jones, J;Lionne, C;Knight, A E;Cote, G P;Paul Luzio, J
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发表时间: 2007-04-09
影响因子: 7.8
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发表时间: 2007-08-01
期刊: TRAFFIC
影响因子: 4.5
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DOI: 10.1002/cm.20150
发表时间: 2006-10-01
影响因子: --
作者:
Naccache, Samia N.;Hasson, Tama
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发表时间: 2006-01-01
影响因子: 3.3
作者:
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