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:
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发表时间:
1999
影响因子:
4
通讯作者:
Friedrich Beermann
中科院分区:
文献类型:
--
作者:
Thomas Simmen;Andrea Schmidt;Walter Hunziker;Friedrich Beermann
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.
影响因子:
3.3
作者:
Rieder, SE;Emr, SD
通讯作者:
Emr, SD
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
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