Septin-associated protein kinases in the yeast Saccharomyces cerevisiae

Septins are a family of eukaryotic GTP-binding proteins that associate into linear rods, which, in turn, polymerize end-on-end into filaments and further assemble into other, more elaborate super-structures at discrete subcellular locations. Hence, septin-based ensembles are considered elements of t...

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Main Author: Jeremy THORNER
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-11-01
Series:Frontiers in Cell and Developmental Biology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fcell.2016.00119/full
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author Jeremy THORNER
author_facet Jeremy THORNER
author_sort Jeremy THORNER
collection DOAJ
description Septins are a family of eukaryotic GTP-binding proteins that associate into linear rods, which, in turn, polymerize end-on-end into filaments and further assemble into other, more elaborate super-structures at discrete subcellular locations. Hence, septin-based ensembles are considered elements of the cytoskeleton. One function of these structures that has been well-documented in studies conducted in budding yeast Saccharomyces cerevisiae is to serve as a scaffold that recruits regulatory proteins, which dictate the spatial and temporal control of certain aspects of the cell division cycle. In particular, septin-associated protein kinases couple cell cycle progression with cellular morphogenesis. Thus, septin-containing structures serve as signaling platforms that integrate a multitude of signals and coordinate key downstream networks required for cell cycle passage. This review summarizes what we currently understand about how the action of septin-associated protein kinases and their substrates control information flow to drive the cell cycle into and out of mitosis, to regulate bud growth, and especially to direct timely and efficient execution of cytokinesis and cell abscission. Thus, septin structures represent a regulatory node at the intersection of many signaling pathways. In addition, and importantly, the activities of certain septin-associated protein kinases also regulate the state of organization of the septins themselves, creating a complex feedback loop.
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spelling doaj.art-95a1a99446c449babb50eb2fbe58c9202022-12-22T02:52:33ZengFrontiers Media S.A.Frontiers in Cell and Developmental Biology2296-634X2016-11-01410.3389/fcell.2016.00119229014Septin-associated protein kinases in the yeast Saccharomyces cerevisiaeJeremy THORNER0University of California, BerkeleySeptins are a family of eukaryotic GTP-binding proteins that associate into linear rods, which, in turn, polymerize end-on-end into filaments and further assemble into other, more elaborate super-structures at discrete subcellular locations. Hence, septin-based ensembles are considered elements of the cytoskeleton. One function of these structures that has been well-documented in studies conducted in budding yeast Saccharomyces cerevisiae is to serve as a scaffold that recruits regulatory proteins, which dictate the spatial and temporal control of certain aspects of the cell division cycle. In particular, septin-associated protein kinases couple cell cycle progression with cellular morphogenesis. Thus, septin-containing structures serve as signaling platforms that integrate a multitude of signals and coordinate key downstream networks required for cell cycle passage. This review summarizes what we currently understand about how the action of septin-associated protein kinases and their substrates control information flow to drive the cell cycle into and out of mitosis, to regulate bud growth, and especially to direct timely and efficient execution of cytokinesis and cell abscission. Thus, septin structures represent a regulatory node at the intersection of many signaling pathways. In addition, and importantly, the activities of certain septin-associated protein kinases also regulate the state of organization of the septins themselves, creating a complex feedback loop.http://journal.frontiersin.org/Journal/10.3389/fcell.2016.00119/fullCell cycle; cell signaling; cytoskeletal element; morphology; protein phosphorylation
spellingShingle Jeremy THORNER
Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
Frontiers in Cell and Developmental Biology
Cell cycle; cell signaling; cytoskeletal element; morphology; protein phosphorylation
title Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
title_full Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
title_fullStr Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
title_full_unstemmed Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
title_short Septin-associated protein kinases in the yeast Saccharomyces cerevisiae
title_sort septin associated protein kinases in the yeast saccharomyces cerevisiae
topic Cell cycle; cell signaling; cytoskeletal element; morphology; protein phosphorylation
url http://journal.frontiersin.org/Journal/10.3389/fcell.2016.00119/full
work_keys_str_mv AT jeremythorner septinassociatedproteinkinasesintheyeastsaccharomycescerevisiae