Decoding the impact of nuclear organization on antigenic variation in parasites

A Barcons-Simon, M Carrington, TN Siegel - Nature Microbiology, 2023 - nature.com
Antigenic variation as a strategy to evade the host adaptive immune response has evolved
in divergent pathogens. Antigenic variation involves restricted, and often mutually exclusive …

Genome-wide subcellular protein map for the flagellate parasite Trypanosoma brucei

K Billington, C Halliday, R Madden, P Dyer… - Nature …, 2023 - nature.com
Trypanosoma brucei is a model trypanosomatid, an important group of human, animal and
plant unicellular parasites. Understanding their complex cell architecture and life cycle is …

[HTML][HTML] Emergence and adaptation of the cellular machinery directing antigenic variation in the African trypanosome

J Faria, EM Briggs, JA Black, R McCulloch - Current opinion in …, 2022 - Elsevier
Survival of the African trypanosome within its mammalian hosts, and hence transmission
between hosts, relies upon antigenic variation, where stochastic changes in the composition …

Genome-wide chromatin interaction map for Trypanosoma cruzi

F Díaz-Viraqué, ML Chiribao, MG Libisch… - Nature Microbiology, 2023 - nature.com
Trypanosomes are eukaryotic, unicellular parasites, such as Trypanosoma brucei, which
causes sleeping sickness, and Trypanosoma cruzi, which causes Chagas disease …

Comprehensive sub-mitochondrial protein map of the parasitic protist Trypanosoma brucei defines critical features of organellar biology

J Pyrih, M Hammond, A Alves, S Dean, JD Sunter… - Cell reports, 2023 - cell.com
We have generated a high-confidence mitochondrial proteome (MitoTag) of the
Trypanosoma brucei procyclic stage containing 1,239 proteins. For 337 of these, a …

TrypTag. org: from images to discoveries using genome-wide protein localisation in Trypanosoma brucei

JD Sunter, S Dean, RJ Wheeler - Trends in Parasitology, 2023 - cell.com
TrypTag was a 4-year project to tag the N-and C-termini of almost all Trypanosoma brucei
proteins with a fluorescent protein and record the subcellular localisation through images …

[HTML][HTML] Deviating from the norm: Nuclear organisation in trypanosomes

MC Field - Current Opinion in Cell Biology, 2023 - Elsevier
At first glance the nucleus is a highly conserved organelle. Overall nuclear morphology, the
octagonal nuclear pore complex, the presence of peripheral heterochromatin and the …

An allele-selective inter-chromosomal protein bridge supports monogenic antigen expression in the African trypanosome

JRC Faria, M Tinti, CA Marques, M Zoltner… - Nature …, 2023 - nature.com
UPF1-like helicases play roles in telomeric heterochromatin formation and X-chromosome
inactivation, and also in monogenic variant surface glycoprotein (VSG) expression via VSG …

The SPARC complex defines RNAPII promoters in Trypanosoma brucei

DP Staneva, S Bresson, T Auchynnikava, C Spanos… - Elife, 2022 - elifesciences.org
Kinetoplastids are a highly divergent lineage of eukaryotes with unusual mechanisms for
regulating gene expression. We previously surveyed 65 putative chromatin factors in the …

PI (3, 4, 5) P3 allosteric regulation of repressor activator protein 1 controls antigenic variation in trypanosomes

AO Touray, R Rajesh, T Isebe, T Sternlieb, M Loock… - Elife, 2023 - elifesciences.org
African trypanosomes evade host immune clearance by antigenic variation, causing
persistent infections in humans and animals. These parasites express a homogeneous …