Architecture and modular assembly of Sulfolobus S-layers revealed by electron cryotomography

Lavinia Gambelli, Benjamin H. Meyer, Mathew McLaren, Kelly Sanders, Tessa E. F. Quax, Vicki A.M. Gold, Sonja Verena Albers, Bertram Daum*

*Corresponding author voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

32 Citaten (Scopus)
66 Downloads (Pure)

Samenvatting

Surface protein layers (S-layers) often form the only structural component of the archaeal cell wall and are therefore important for cell survival. S-layers have a plethora of cellular functions including maintenance of cell shape, osmotic, and mechanical stability, the formation of a semipermeable protective barrier around the cell, and cell-cell interaction, as well as surface adhesion. Despite the central importance of S-layers for archaeal life, their 3-dimensional (3D) architecture is still poorly understood. Here we present detailed 3D electron cryomicroscopy maps of archaeal S-layers from 3 different Sulfolobus strains. We were able to pinpoint the positions and determine the structure of the 2 subunits SlaA and SlaB. We also present a model describing the assembly of the mature S-layer.

Originele taal-2English
Pagina's (van-tot)25278-25286
Aantal pagina's9
TijdschriftProceedings of the National Academy of Sciences of the United States of America
Volume116
Nummer van het tijdschrift50
DOI's
StatusPublished - 10-dec.-2019

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