ArticleMolecular biology and evolution2010
The evolution of amastin surface glycoproteins in trypanosomatid parasites.
Article in Molecular biology and evolution, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.
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58 citing papers in PubMed, 91 citations in OpenAlex.
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- Nuclear Genome Assembly and Annotation of Kinetoplastids.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Genetic diversity and comparative genomics across Leishmania (Viannia) species.Communications biology · 2025Article
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- Immunogenicity and protective efficacy of tuzin protein as a vaccine candidate inFrontiers in immunology · 2023Article
- Modulation of Virulence Factors duringPathogens (Basel, Switzerland) · 2022Review
- Quantitative monitoring of experimental and human leishmaniasis employing amastigote-specific genes.Parasitology · 2022Article
- Tissue Specific Dual RNA-Seq Defines Host-Parasite Interplay in Murine Visceral Leishmaniasis Caused by Leishmania donovani and Leishmania infantum.Microbiology spectrum · 2022Article
- Genomics of Trypanosomatidae: Where We Stand and What Needs to Be Done?Pathogens (Basel, Switzerland) · 2021Review
- AQPX-cluster aquaporins and aquaglyceroporins are asymmetrically distributed in trypanosomes.Communications biology · 2021Article
- Genome Analysis ofGenes · 2021Article
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- Dual transcriptome analysis reveals differential gene expression modulation influenced byMicrobial genomics · 2020Article
- Frequent Recombination Events inPathogens (Basel, Switzerland) · 2020Article
- Trypanosomatid parasite dynamically changes the transcriptome during infection and modifies honey bee physiology.Communications biology · 2020Article
- Comparative genomics of Leishmania (Mundinia).BMC genomics · 2019Article
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1 author at 1 institution in 1 country.
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Abstract
Amastin is a transmembrane glycoprotein found on the cell surfaces of trypanosomatid parasites. Encoded by a large, diverse gene family, amastin was initially described from the intracellular, amastigote stage of Trypanosoma cruzi and Leishmania donovani. Genome sequences have subsequently shown that the amastin repertoire is much larger in Leishmania relative to Trypanosoma. However, it is not known when this expansion occurred, whether it is associated with the origins of Leishmania and vertebrate parasitism itself, or prior to this. To examine the timing of amastin diversification, as well as the evolutionary mechanisms regulating gene repertoire and sequence diversity, this study sequenced the genomic regions containing amastin loci from two related insect parasites (Leptomonas seymouri and Crithidia sp.) and estimated a phylogeny for these and other amastin sequences. The phylogeny shows that amastin includes four subfamilies with distinct genomic positions, secondary structures, and evolution, which were already differentiated in the ancestral trypanosomatid. Diversification in Leishmania was initiated from a single ancestral locus on chromosome 34, with rapid derivation of novel loci through transposition and accelerated sequence divergence. This is absent from related organisms showing that diversification occurred after the origin of Leishmania. These results describe a substantial elaboration of amastin repertoire directly associated with the origin of Leishmania, suggesting that some amastin genes evolved novel functions crucial to cell function in leishmanial parasites after the acquisition of a vertebrate host.
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