ArticleEukaryotic cell2015
Impact of Protein Palmitoylation on the Virulence Potential of Cryptococcus neoformans.
Article in Eukaryotic cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 21 citations in OpenAlex.
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- Targeting of Specialized Metabolites Biosynthetic Enzymes to Membranes and Vesicles by Posttranslational Palmitoylation: A Mechanism of Non-Conventional Traffic and Secretion of Fungal Metabolites.International journal of molecular sciences · 2024Review
- Palmitoyl Transferase FonPAT2-Catalyzed Palmitoylation of the FonAP-2 Complex Is Essential for Growth, Development, Stress Response, and Virulence in Fusarium oxysporum f. sp.Microbiology spectrum · 2023Article
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- Roles for Stress Response and Cell Wall Biosynthesis Pathways in Caspofungin Tolerance inGenetics · 2019Article
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- Treatment of Trypanosoma cruzi with 2-bromopalmitate alters morphology, endocytosis, differentiation and infectivity.BMC cell biology · 2018Article
- Characterization of additional components of the environmental pH-sensing complex in the pathogenic fungusThe Journal of biological chemistry · 2018Article
- Nutritional Requirements and Their Importance for Virulence of Pathogenic Cryptococcus Species.Microorganisms · 2017Review
- Protein S-palmitoylation in cellular differentiation.Biochemical Society transactions · 2017Review
- Progress toward Understanding Protein S-acylation: Prospective in Plants.Frontiers in plant science · 2017Review
- All about that fat: Lipid modification of proteins in Cryptococcus neoformans.Journal of microbiology (Seoul, Korea) · 2016Review
- Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
The localization and specialized function of Ras-like proteins are largely determined by posttranslational processing events. In a highly regulated process, palmitoyl groups may be added to C-terminal cysteine residues, targeting these proteins to specific membranes. In the human fungal pathogen Cryptococcus neoformans, Ras1 protein palmitoylation is essential for growth at high temperature but is dispensable for sexual differentiation. Ras1 palmitoylation is also required for localization of this protein on the plasma membrane. Together, these results support a model in which specific Ras functions are mediated from different subcellular locations. We therefore hypothesize that proteins that activate Ras1 or mediate Ras1 localization to the plasma membrane will be important for C. neoformans pathogenesis. To further characterize the Ras1 signaling cascade mediating high-temperature growth, we have identified a family of protein S-acyltransferases (PATs), enzymes that mediate palmitoylation, in the C. neoformans genome database. Deletion strains for each candidate gene were generated by homogenous recombination, and each mutant strain was assessed for Ras1-mediated phenotypes, including high-temperature growth, morphogenesis, and sexual development. We found that full Ras1 palmitoylation and function required one particular PAT, Pfa4, and deletion of the PFA4 gene in C. neoformans resulted in altered Ras1 localization to membranes, impaired growth at 37°C, and reduced virulence.
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