Title |
Expression and cellular distribution of perchloric acid-soluble protein is dependent on the cell-proliferating states of NRK-52E cells
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Published in |
Cellular and Molecular Life Sciences, July 2000
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DOI | 10.1007/pl00000746 |
Pubmed ID | |
Authors |
H. Kanouchi, T. Oka, K. Asagi, H. Tachibana, K. Yamada* |
Abstract |
To clarify the biological role of kidney perchloric acid-soluble protein 1 (K-PSP1), its expression and intracellular distribution were examined in normal rat kidney epithelial NRK-52E cells. K-PSP1 expression was low during the proliferating phase and high in the stationary phase, and shown to have a negative relationship with the protein-synthesizing activity of the cells. Immunocytochemical studies revealed that K-PSP1 is predominantly located in the cytosol, especially in endoplasmic reticulum and Golgi apparatus of proliferating cells. In the stationary phase, K-PSP1 was not detected immunologically even though protein and mRNA expression were high. This disappearance of reactivity with anti-serum seems to be due to a conformational change in K-PSP1 induced by unknown factors. These results suggest that the role of K-PSP1 is to regulate cell proliferation, and this may be related to a previously reported ability to inhibit protein synthesis. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 2 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Professor | 1 | 50% |
Student > Postgraduate | 1 | 50% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 2 | 100% |