Sheaths are diverse and abundant cell surface layers in archaea
Sofia Medvedeva,
Guillaume Borrel,
Simonetta Gribaldo
Abstract:Prokaryotic cells employ multiple protective layers crucial for defense, structural integrity, and cellular interactions in the environment. Archaea often feature an S-layer, with some species possessing additional and remarkably resistant sheaths. The archaeal sheath has been studied in Methanothrix and Methanospirillum, revealing a complex structure consisting of amyloid proteins organized into rings. Here, we conducted a comprehensive survey of sheath-forming proteins (SH proteins) across archaeal genomes. … Show more
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