Differential nuclear envelope assembly at the end of mitosis in suspension-cultured Apium graveolens cells
| العنوان: | Differential nuclear envelope assembly at the end of mitosis in suspension-cultured Apium graveolens cells |
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| المؤلفون: | Chie Kuroda, Yuta Kimura, Kiyoshi Masuda |
| المصدر: | Chromosoma. 119:195-204 |
| بيانات النشر: | Springer Science and Business Media LLC, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Time Factors, Nuclear Envelope, Molecular Sequence Data, Cell Culture Techniques, Mitosis, Biology, Sequence Analysis, Protein, Chromosome Segregation, Genetics, medicine, Endomembrane system, Amino Acid Sequence, Prometaphase, Nuclear membrane, Telophase, Metaphase, Genetics (clinical), Apium, Plant Proteins, Anaphase, Nuclear Proteins, Apium graveolens, Chromatin, Protein Structure, Tertiary, Cell biology, medicine.anatomical_structure, Biomarkers |
| الوصف: | NMCP1 is a plant protein that has a long coiled-coil domain within the molecule. Newly identified NMCP2 of Daucus carota and Apium graveolens showed similar peripheral localization in the interphase nucleus, and the sequence spanning the coiled-coil domain exhibited significant similarity with the corresponding region of NMCP1. To better understand disassembly and assembly of the nuclear envelope (NE) during mitosis, subcellular distribution of NMCP1 and NMCP2 was examined using A. graveolens cells. AgNMCP1 (NMCP1 in Apium) disassembled at prometaphase, dispersed mainly within the spindle, and accumulated on segregating chromosomes, while AgNMCP2 (NMCP2 in Apium), following disassembly at prometaphase with timing similar to that of AgNMCP1, dispersed throughout the mitotic cytoplasm at metaphase and anaphase. The protein accumulated at the periphery of reforming nuclei at telophase. A probe for the endomembrane indicated that the nuclear membrane (NM) disappears at prometaphase and begins to reappear at early telophase. Growth of the NM continued after mitosis was completed. NMCP2 in the mitotic cytoplasm localized in vesicular structures that could be distinguished from the bulk endomembrane system. These results suggest that NMCP1 and NMCP2 are recruited for NE assembly in different pathways in mitosis and that NMCP2 associates with NM-derived vesicles in the mitotic cytoplasm. |
| تدمد: | 1432-0886 0009-5915 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7d502acfe8d39375ae09b13b5acc9baTest https://doi.org/10.1007/s00412-009-0248-yTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....d7d502acfe8d39375ae09b13b5acc9ba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320886 00095915 |
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