The tyrosinase tail mediates sorting to the lysosomal compartment in MDCK cells via a di-leucine and a tyrosine-based signal.

The tyrosinase tail mediates sorting to the lysosomal compartment in MDCK cells via a di-leucine and a tyrosine-based signal.
复制标题

酪氨酸酶尾部通过二亮氨酸和基于酪氨酸的信号介导对 MDCK 细胞中溶酶体区室的分选。

DOI:
--
复制
发表时间:
1999
影响因子:
4
通讯作者:
Friedrich Beermann
Friedrich Beermann
中科院分区:
生物学2区
文献类型:
--
作者:
Thomas Simmen;Andrea Schmidt;Walter Hunziker;Friedrich Beermann

文献摘要

参考文献

被引文献

相似文献

酪氨酸酶是黑素体中发现的I型膜蛋白,黑素体是溶酶体样细胞器并且对色素细胞具有特异性。小鼠酪氨酸酶铂(cp)的突变导致酪氨酸酶胞质尾部截短,并导致错误路由到细胞外周。在这项研究中,我们表达嵌合体的野生型和突变体的小鼠酪氨酸酶的胞质尾部融合大鼠溶酶体相关膜蛋白-1管腔和跨膜结构域的酪氨酸酶在Madin-Darby犬肾细胞的分选研究。该研究表明,小鼠酪氨酸酶胞质尾是必要的,足以介导的异源I型膜蛋白的溶酶体谱系的隔室的分选。尽管尾部的7或10个C-末端氨基酸的缺失仍然导致分选至溶酶体,但对应于铂(CP)尾部的缺失突变体不能正确分选,并证实了CP纯合突变小鼠中的原位发现。酪氨酸酶-溶酶体相关膜蛋白-1嵌合体的正确分选是由双亮氨酸信号和Y-X-X-O型酪氨酸基序的相互作用介导的。
Tyrosinase is a type I membrane protein found in melanosomes, which are lysosomal-like organelles and specific for pigment cells. A mutation of mouse tyrosinase, platinum (cp), leads to truncation of tyrosinase's cytosolic tail, and results in misrouting to the cell periphery. In this study, we expressed chimeras of wild-type and mutant cytosolic tails of mouse tyrosinase fused to rat lysosome-associated membrane protein-1 luminal and transmembrane domain to study sorting of tyrosinase in Madin-Darby canine kidney cells. The study shows that the mouse tyrosinase cytosolic tail is necessary and sufficient to mediate sorting of a heterologous type I membrane protein to compartments of the lysosomal lineage. Whereas deletions of 7 or 10 C-terminal amino acids of the tail still result in sorting to lysosomes, a deletion mutant corresponding to platinum (cp) tail fails to sort correctly and corroborates the in situ findings in cp homozygous mutant mice. Correct sorting of tyrosinase-lysosome-associated membrane protein-1 chimeras is mediated by the interplay of a di-leucine signal and a tyrosine motif of the Y-X-X-O type.
DOI: 10.1091/mbc.8.11.2307
发表时间: 1997-11-01
影响因子: 3.3
作者:
Rieder, SE;Emr, SD
通讯作者: Emr, SD
小鼠黑色素瘤细胞中囊泡和黑素体常见的膜糖蛋白。
DOI: 10.1111/j.1600-0749.1990.tb00368.x
发表时间: 1992
期刊: Pigment cell research
影响因子: --
作者:
Orlow,SJ;Chakraborty,AK;Pawelek,JM
通讯作者: Pawelek,JM
溶酶体相关膜蛋白-1 (LAMP-1) 是黑素细胞囊泡膜糖蛋白带 II。
DOI: 10.1111/1523-1747.ep12462775
发表时间: 1993
期刊: The Journal of investigative dermatology
影响因子: --
作者:
Zhou,BK;Boissy,RE;Pifko-Hirst,S;Moran,DJ;Orlow,SJ
通讯作者: Orlow,SJ