A role for the ESCRT system in cell division in archaea

Rachel Y. Samson, Takayuki Obita, Stefan M. Freund, Roger L. Williams, Stephen D. Bell

Research output: Contribution to journalArticlepeer-review

303 Scopus citations

Abstract

Archaea are prokaryotic organisms that lack endomembrane structures. However, a number of hyperthermophilic members of the Kingdom Crenarchaea, including members of the Sulfolobus genus, encode homologs of the eukaryotic endosomal sorting system components Vps4 and ESCRT-III (endosomal sorting complex required for transport-III). We found that Sulfolobus ESCRT-III and Vps4 homologs underwent regulation of their expression during the cell cycle. The proteins interacted and we established the structural basis of this interaction. Furthermore, these proteins specifically localized to the mid-cell during cell division. Overexpression of a catalytically inactive mutant Vps4 in Sulfolobus resulted in the accumulation of enlarged cells, indicative of failed cell division. Thus, the archaeal ESCRT system plays a key role in cell division.

Original languageEnglish
Pages (from-to)1710-1713
Number of pages4
JournalScience
Volume322
Issue number5908
DOIs
StatePublished - 2008/12/12

ASJC Scopus subject areas

  • General

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