Different localization of lysosomal-associated membrane protein 1 (LAMP1) in mammalian cultured cell lines.,Histochemistry and Cell Biology

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Different localization of lysosomal-associated membrane protein 1 (LAMP1) in mammalian cultured cell lines.
Histochemistry and Cell Biology ( IF 2.1 ) Pub Date : 2020-01-06 , DOI: 10.1007/s00418-019-01842-z
Kosuke Baba ₁ , Sara Kuwada ₁ , Ayaka Nakao ₁ , Xuebing Li ₂ , Naoaki Okuda ₁ , Ai Nishida ₁ , Satoshi Mitsuda ₁ , Natsuki Fukuoka ₁ , Hideaki Kakeya ₂ , Takao Kataoka _{1,

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Affiliation

Lysosomal-associated membrane protein 1 (LAMP1) mainly localizes to lysosomes and late endosomes. We herein investigated the intracellular localization of lysosomal membrane proteins in five mammalian cultured cell lines. Rat LAMP1 fused to enhanced green fluorescent protein (EGFP) mostly accumulated at a particular cytoplasmic area and barely co-localized with LysoTracker® Red DND-99 in golden hamster kidney BHK-21 cells and Chinese hamster ovary CHO-K1 cells. Golden hamster, Chinese hamster, and human LAMP1-EGFP showed a similar intracellular distribution to rat LAMP1-EGFP in BHK-21 cells. Endogenous LAMP1 was also detected in a perinuclear area in BHK-21 cells and CHO-K1 cells, and co-localized with rat CD63-EGFP in BHK-21 cells. Moreover, rat LAMP1-DsRed-Monomer co-localized well with the human trans-Golgi network protein 2-EGFP in BHK-21 cells. These results reveal that LAMP1 predominantly localizes to the trans-Golgi network in BHK-21 cells.

更新日期：2020-04-21

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