Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body

The main microtubule organizing centre in the unicellular model organisms Saccharomyces cerevisiae and Schizosaccharomyces pompe is the spindle pole body (SPB). The SPB is a multilayer structure, which duplicates exactly once per cell cycle. Unlike higher eukaryotic cells, both yeast model organisms...

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Main Authors: Diana Rüthnick, Elmar Schiebel
Format: Article
Language:English
Published: MDPI AG 2018-05-01
Series:Cells
Subjects:
Online Access:http://www.mdpi.com/2073-4409/7/5/42
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author Diana Rüthnick
Elmar Schiebel
author_facet Diana Rüthnick
Elmar Schiebel
author_sort Diana Rüthnick
collection DOAJ
description The main microtubule organizing centre in the unicellular model organisms Saccharomyces cerevisiae and Schizosaccharomyces pompe is the spindle pole body (SPB). The SPB is a multilayer structure, which duplicates exactly once per cell cycle. Unlike higher eukaryotic cells, both yeast model organisms undergo mitosis without breakdown of the nuclear envelope (NE), a so-called closed mitosis. Therefore, in order to simultaneously nucleate nuclear and cytoplasmic MTs, it is vital to embed the SPB into the NE at least during mitosis, similarly to the nuclear pore complex (NPC). This review aims to embrace the current knowledge of the SPB duplication cycle with special emphasis on the critical step of the insertion of the new SPB into the NE.
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spelling doaj.art-1b88bdd04cfe4843a293da50132478af2023-09-03T03:06:16ZengMDPI AGCells2073-44092018-05-01754210.3390/cells7050042cells7050042Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole BodyDiana Rüthnick0Elmar Schiebel1Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Allianz, 69120 Heidelberg, GermanyZentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Allianz, 69120 Heidelberg, GermanyThe main microtubule organizing centre in the unicellular model organisms Saccharomyces cerevisiae and Schizosaccharomyces pompe is the spindle pole body (SPB). The SPB is a multilayer structure, which duplicates exactly once per cell cycle. Unlike higher eukaryotic cells, both yeast model organisms undergo mitosis without breakdown of the nuclear envelope (NE), a so-called closed mitosis. Therefore, in order to simultaneously nucleate nuclear and cytoplasmic MTs, it is vital to embed the SPB into the NE at least during mitosis, similarly to the nuclear pore complex (NPC). This review aims to embrace the current knowledge of the SPB duplication cycle with special emphasis on the critical step of the insertion of the new SPB into the NE.http://www.mdpi.com/2073-4409/7/5/42spindle pole body (SPB)nuclear pore complex (NPC)nuclear envelope (NE) insertion
spellingShingle Diana Rüthnick
Elmar Schiebel
Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
Cells
spindle pole body (SPB)
nuclear pore complex (NPC)
nuclear envelope (NE) insertion
title Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
title_full Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
title_fullStr Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
title_full_unstemmed Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
title_short Duplication and Nuclear Envelope Insertion of the Yeast Microtubule Organizing Centre, the Spindle Pole Body
title_sort duplication and nuclear envelope insertion of the yeast microtubule organizing centre the spindle pole body
topic spindle pole body (SPB)
nuclear pore complex (NPC)
nuclear envelope (NE) insertion
url http://www.mdpi.com/2073-4409/7/5/42
work_keys_str_mv AT dianaruthnick duplicationandnuclearenvelopeinsertionoftheyeastmicrotubuleorganizingcentrethespindlepolebody
AT elmarschiebel duplicationandnuclearenvelopeinsertionoftheyeastmicrotubuleorganizingcentrethespindlepolebody