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Metabolic impact on the regulation of the L-arginine transporter in the polyamines pathway of Leishmania amazonensis

Grant number: 21/04422-3
Support Opportunities:Scholarships in Brazil - Post-Doctorate
Effective date (Start): June 01, 2021
Effective date (End): August 31, 2022
Field of knowledge:Biological Sciences - Parasitology - Protozoology of Parasites
Principal Investigator:Lucile Maria Floeter-Winter
Grantee:Juliana Ide Aoki
Host Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:18/23512-0 - The Leishmania-host relationship from the ‘omics’ perspective, AP.TEM


Leishmania is auxotrophic for amino acids and nutrients and has a specific transport for L-arginine mediated by amino acid porter-3 (AAP3) inpromastigote and amastigote forms. This transporter is encoded in two copies in the parasite's genome, one of which is regulated by the presence of the amino acid itself, externally or internally, in addition to pH, temperature and parasite arginase enzyme activity. The PD proposal has as its central objective to characterize the physiological role and cell location of the L-arginine transporter AAP3 through the application of CRISPR/Cas9 gene editing technology. (AU)

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