Unique for a eukaryote, protein-coding genes in trypanosomes are arranged in polycistronic units (PTUs). This genome arrangement has led to a model where Pol II transcription of PTUs is unregulated and that changes in gene expression are entirely post-transcriptional. Trypanosoma brucei brucei is unable to infect humans because of its susceptibility to an innate immune complex, trypanosome lytic factor (TLF) in the circulation of humans. The initial step in TLF mediated lysis of
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Kieft et al. (2024) studied this question.
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