PXD045841-1

PXD045841 is an original dataset announced via ProteomeXchange.

Title	Differentiation granules, a dynamic regulator of T. brucei differentiation.
Description	Adaptation to a change of environment is an essential process for survival, in particular for parasitic organisms exposed to a wide range of hosts. Such adaptations include rapid control of gene expression through the formation of membraneless organelles composed of poly-A RNA and proteins. The African trypanosome Trypanosoma brucei is exquisitely sensitive to well-defined environmental stimuli that trigger cellular adaptations through differentiation events that characterise its complex life cycle. The parasite has been shown to form stress granules in vitro and it has been proposed that such a stress response could have been repurposed to enable differentiation and facilitate parasite transmission. Therefore, we explored the composition and positional dynamics of membraneless granules formed in response to starvation stress and during the differentiation in the mammalian host between the replicative slender and transmission adapted stumpy forms. We find that T. brucei differentiation does not reflect the default response to environmental stress. Instead, the developmental response of the parasites involves a specific and programmed hierarchy of membraneless granule assembly, with distinct components and regulation, by protein kinases such as TbDYRK, that are required for the parasite to successfully progress through its life cycle development and prepare for transmission.
HostingRepository	PRIDE
AnnounceDate	2024-04-02
AnnouncementXML	Submission_2024-04-02_11:10:11.158.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Mathieu Cayla
SpeciesList	scientific name: Trypanosoma brucei; NCBI TaxID: 5691;
ModificationList	biotinylated residue; phosphorylated residue
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2023-10-01 15:43:54	ID requested
⏵ 1	2024-04-02 11:10:11	announced
2	2024-10-22 06:34:57	announced	2024-10-22: Updated project metadata.

10.1038/S41467-024-47309-1;

submitter keyword: stress granules, stress response, differentiation, protein kinase,Trypanosoma brucei, proximity labelling

Keith R. Matthews
contact affiliation	University of Edinburgh
contact email	keith.matthews@ed.ac.uk
lab head
Mathieu Cayla
contact affiliation	University of York
contact email	mathieu.cayla@york.ac.uk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD045841
     1. Label: PRIDE project
     2. Name: Differentiation granules, a dynamic regulator of T. brucei differentiation.