Evolution of a large periplasmic disk in Campylobacterota flagella facilitated efficient motility alongside autoagglutination
Evolution of a large periplasmic disk in Campylobacterota flagella facilitated efficient motility alongside autoagglutination
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弯曲杆菌鞭毛中大型周质盘的进化促进了自凝集的有效运动
DOI:
10.1101/2023.09.08.556628
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Cohen E
中科院分区:
文献类型:
--
作者:
Cohen E
Although the bacterial flagella ofEscherichia coliandSalmonella entericaare distributed around the cell body, many bacteria instead place their flagella at their poles. This widespread form of flagellar motility is relatively poorly understood, but these polar flagellar motors invariably feature periplasmic disk structures of unknown function. The flagellar motor ofCampylobacter jejunifeatures a 100 nm-wide periplasmic disk associated with scaffolding a wider ring of motor proteins to increase torque, but the size of this disk is excessive for a role solely in scaffolding motor proteins. Here we show that the basal disk inC. jejuniis a flange that braces the motor during disentanglement of the flagellar filament from interactions with the cell body and other filaments, interactions that are otherwise important for host colonization. Our results reveal an entanglement of co-dependencies in the evolution of flagellar motor structure and cell plan in the Campylobacterota (previously epsilonproteobacteria). Note that this manuscript has a sibling manuscript titled’Molecular model of a bacterial flagellar motor in situ reveals a “parts-list” of protein adaptations to increase torque’that describes a molecular model of theCampylobacter jejuniflagellar motor discussed here.
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DOI:
10.1073/pnas.1701644114
发表时间:
2017-06-13
影响因子:
11.1
作者:
Kuehn, Marco J.;Schmidt, Felix K.;Thormann, Kai M.
通讯作者:
Thormann, Kai M.
影响因子:
3.7
作者:
van Alphen LB;Wenzel CQ;Richards MR;Fodor C;Ashmus RA;Stahl M;Karlyshev AV;Wren BW;Stintzi A;Miller WG;Lowary TL;Szymanski CM
通讯作者:
Szymanski CM
DOI:
10.2142/biophysics.9.63
发表时间:
2013
期刊:
Biophysics (Nagoya-shi, Japan)
影响因子:
--
作者:
Moriya N;Minamino T;Ferris HU;Morimoto YV;Ashihara M;Kato T;Namba K
通讯作者:
Namba K
影响因子:
15.9
作者:
C. Szymanski;S. Logan;D. Linton;B. Wren
通讯作者:
B. Wren
DOI:
--
发表时间:
2019
期刊:
bioRxiv
影响因子:
--
作者:
Eli J. Cohen;Rui Tong Quek;M. Beeby
通讯作者:
M. Beeby