Studying bacterial chemosensory array with CryoEM.
Biochem Soc Trans
; 49(5): 2081-2089, 2021 11 01.
Article
em En
| MEDLINE
| ID: mdl-34495335
ABSTRACT
Bacteria direct their movement in respond to gradients of nutrients and other stimuli in the environment through the chemosensory system. The behavior is mediated by chemosensory arrays that are made up of thousands of proteins to form an organized array near the cell pole. In this review, we briefly introduce the architecture and function of the chemosensory array and its core signaling unit. We describe the in vivo and in vitro systems that have been used for structural studies of chemosensory array by cryoEM, including reconstituted lipid nanodiscs, 2D lipid monolayer arrays, lysed bacterial ghosts, bacterial minicells and native bacteria cells. Lastly, we review recent advances in structural analysis of chemosensory arrays using state-of-the-art cryoEM and cryoET methodologies, focusing on the latest developments and insights with a perspective on current challenges and future directions.
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Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
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Quimiotaxia
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Microscopia Crioeletrônica
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Proteínas de Escherichia coli
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Escherichia coli
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Histidina Quinase
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Proteínas Quimiotáticas Aceptoras de Metil
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article