Spatiotemporal localization of proteins in mycobacteria.
Cell Rep
; 37(13): 110154, 2021 12 28.
Article
em En
| MEDLINE
| ID: mdl-34965429
ABSTRACT
Although prokaryotic organisms lack traditional organelles, they must still organize cellular structures in space and time, challenges that different species solve differently. To systematically define the subcellular architecture of mycobacteria, we perform high-throughput imaging of a library of fluorescently tagged proteins expressed in Mycobacterium smegmatis and develop a customized computational pipeline, MOMIA and GEMATRIA, to analyze these data. Our results establish a spatial organization network of over 700 conserved mycobacterial proteins and reveal a coherent localization pattern for many proteins of known function, including those in translation, energy metabolism, cell growth and division, as well as proteins of unknown function. Furthermore, our pipeline exploits morphologic proxies to enable a pseudo-temporal approximation of protein localization and identifies previously uncharacterized cell-cycle-dependent dynamics of essential mycobacterial proteins. Collectively, these data provide a systems perspective on the subcellular organization of mycobacteria and provide tools for the analysis of bacteria with non-standard growth characteristics.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Bactérias
/
Organelas
/
Mycobacterium smegmatis
/
Imagem Molecular
/
Análise Espaço-Temporal
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Cell Rep
Ano de publicação:
2021
Tipo de documento:
Article