Cohesin contributes to transcriptional repression of stage‐specific genes in the human malaria parasite

Abstract: The complex life cycle of the human malaria parasite, Plasmodium falciparum, is driven by specific transcriptional programs, but it is unclear how most genes are activated or silenced at specific times. There is an association between transcription and spatial organization; however, the molecular mechanisms behind genome organization are unclear. While P. falciparum lacks key genome‐organizing proteins found in metazoans, it has all core components of the cohesin complex. To investigate the role of cohesin in P. falciparum, we functionally characterize the cohesin subunit Structural Maintenance of Chromosomes protein 3 (SMC3). SMC3 knockdown during early stages of the intraerythrocytic developmental cycle (IDC) upregulates a subset of genes involved in erythrocyte egress and invasion, which are normally expressed at later stages. ChIP‐seq analyses reveal that during the IDC, SMC3 enrichment at the promoter regions of these genes inversely correlates with gene expression and chromatin accessibility. These data suggest that SMC3 binding contributes to the repression of specific genes until their appropriate time of expression, revealing a new mode of stage‐specific gene repression in P. falciparum.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Cohesin contributes to transcriptional repression of stage‐specific genes in the human malaria parasite ; day:18 ; month:08 ; year:2023 ; extent:20
EMBO reports / European Molecular Biology Organization ; (18.08.2023) (gesamt 20)

Creator
Rosa, Catarina
Singh, Parul
Chen, Patty
Sinha, Ameya
Claës, Aurélie
Preiser, Peter R.
Dedon, Peter C.
Baumgarten, Sebastian
Scherf, Artur
Bryant, Jessica M.

DOI
10.15252/embr.202357090
URN
urn:nbn:de:101:1-2023081815341198565499
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:55 AM CEST

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Associated

  • Rosa, Catarina
  • Singh, Parul
  • Chen, Patty
  • Sinha, Ameya
  • Claës, Aurélie
  • Preiser, Peter R.
  • Dedon, Peter C.
  • Baumgarten, Sebastian
  • Scherf, Artur
  • Bryant, Jessica M.

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