Stacking the odds for Golgi cisternal maturation

What is the minimal set of cell-biological ingredients needed to generate a Golgi apparatus? The compositions of eukaryotic organelles arise through a process of molecular exchange via vesicle traffic. Here we statistically sample tens of thousands of homeostatic vesicle traffic networks generated b...

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Main Authors: Somya Mani, Mukund Thattai
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2016-08-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/16231
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author Somya Mani
Mukund Thattai
author_facet Somya Mani
Mukund Thattai
author_sort Somya Mani
collection DOAJ
description What is the minimal set of cell-biological ingredients needed to generate a Golgi apparatus? The compositions of eukaryotic organelles arise through a process of molecular exchange via vesicle traffic. Here we statistically sample tens of thousands of homeostatic vesicle traffic networks generated by realistic molecular rules governing vesicle budding and fusion. Remarkably, the plurality of these networks contain chains of compartments that undergo creation, compositional maturation, and dissipation, coupled by molecular recycling along retrograde vesicles. This motif precisely matches the cisternal maturation model of the Golgi, which was developed to explain many observed aspects of the eukaryotic secretory pathway. In our analysis cisternal maturation is a robust consequence of vesicle traffic homeostasis, independent of the underlying details of molecular interactions or spatial stacking. This architecture may have been exapted rather than selected for its role in the secretion of large cargo.
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spelling doaj.art-608360d3cdcd4868af087e4ee1d7b09d2022-12-22T03:52:36ZengeLife Sciences Publications LtdeLife2050-084X2016-08-01510.7554/eLife.16231Stacking the odds for Golgi cisternal maturationSomya Mani0Mukund Thattai1https://orcid.org/0000-0002-2558-6517Simons Centre for the Study of Living Machines, National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, IndiaSimons Centre for the Study of Living Machines, National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, IndiaWhat is the minimal set of cell-biological ingredients needed to generate a Golgi apparatus? The compositions of eukaryotic organelles arise through a process of molecular exchange via vesicle traffic. Here we statistically sample tens of thousands of homeostatic vesicle traffic networks generated by realistic molecular rules governing vesicle budding and fusion. Remarkably, the plurality of these networks contain chains of compartments that undergo creation, compositional maturation, and dissipation, coupled by molecular recycling along retrograde vesicles. This motif precisely matches the cisternal maturation model of the Golgi, which was developed to explain many observed aspects of the eukaryotic secretory pathway. In our analysis cisternal maturation is a robust consequence of vesicle traffic homeostasis, independent of the underlying details of molecular interactions or spatial stacking. This architecture may have been exapted rather than selected for its role in the secretion of large cargo.https://elifesciences.org/articles/16231Golgi apparatuscisternal maturationvesicle trafficBoolean modelsstatistical cell biology
spellingShingle Somya Mani
Mukund Thattai
Stacking the odds for Golgi cisternal maturation
eLife
Golgi apparatus
cisternal maturation
vesicle traffic
Boolean models
statistical cell biology
title Stacking the odds for Golgi cisternal maturation
title_full Stacking the odds for Golgi cisternal maturation
title_fullStr Stacking the odds for Golgi cisternal maturation
title_full_unstemmed Stacking the odds for Golgi cisternal maturation
title_short Stacking the odds for Golgi cisternal maturation
title_sort stacking the odds for golgi cisternal maturation
topic Golgi apparatus
cisternal maturation
vesicle traffic
Boolean models
statistical cell biology
url https://elifesciences.org/articles/16231
work_keys_str_mv AT somyamani stackingtheoddsforgolgicisternalmaturation
AT mukundthattai stackingtheoddsforgolgicisternalmaturation