Golgi Distribution of Lyn to Caveolin- and Giantin-Positive <i>cis</i>-Golgi Membranes and the Caveolin-Negative, TGN46-Positive <i>trans</i>-Golgi Network
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- Okamoto Aya
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
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- Morinaga Takao
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute
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- Yamaguchi Noritaka
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
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- Yamaguchi Naoto
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
Bibliographic Information
- Other Title
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- Golgi Distribution of Lyn to Caveolin- and Giantin-Positive cis-Golgi Membranes and the Caveolin-Negative, TGN46-Positive trans-Golgi Network
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Abstract
<p>Src-family tyrosine kinases, classified as cytosolic enzymes, have crucial roles in regulating cell proliferation, differentiation, migration and cell-shape changes. Newly synthesized Lyn, a member of Src-family kinases, is biosynthetically accumulated at the cytoplasmic face of caveolin-containing Golgi membranes via posttranslational lipid modifications and then transported to the plasma membrane. However, the precise intra-Golgi localization of Lyn remains elusive. By means of a 19°C block-release technique and short-term brefeldin A treatment, we show here that the distribution of Lyn is not monotonously spread within the Golgi but selectively intensified in two distinct membrane compartments: giantin- and caveolin-positive membranes and trans-Golgi network protein (TGN)46-positive but caveolin-negative membranes. Furthermore, Lyn exits the Golgi from the caveolin-positive cis-Golgi cisternae or the caveolin-negative trans-Golgi network. These results suggest that Lyn moves apart from caveolin, a secretory protein, within the Golgi during Lyn’s trafficking to the plasma membrane.</p>
Journal
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- Biological and Pharmaceutical Bulletin
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Biological and Pharmaceutical Bulletin 41 (1), 142-146, 2018
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204634422144
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- NII Article ID
- 130006301302
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- NII Book ID
- AA10885497
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- ISSN
- 13475215
- 09186158
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- NDL BIB ID
- 028739501
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- PubMed
- 29311477
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed