- MeSH
- antibakteriální látky biosyntéza MeSH
- cyklopentany MeSH
- fosfáty metabolismus MeSH
- fruktosa metabolismus MeSH
- galaktosa metabolismus MeSH
- glukosa metabolismus MeSH
- kultivační média MeSH
- mitosporické houby metabolismus růst a vývoj MeSH
- peptony metabolismus MeSH
- stopové prvky metabolismus MeSH
- xylosa metabolismus MeSH
- Klíčová slova
- Silybin, ALAVIS SAMMY,
- MeSH
- antioxidancia terapeutické užití MeSH
- demence * farmakoterapie MeSH
- kočky MeSH
- kognitivní stárnutí MeSH
- nemoci jater farmakoterapie veterinární MeSH
- ostropestřec mariánský MeSH
- psi MeSH
- S-adenosylmethionin * metabolismus terapeutické užití MeSH
- zvířata MeSH
- Check Tag
- kočky MeSH
- psi MeSH
- zvířata MeSH
Amino acids are key sources of nitrogen for growth of Candida albicans. In order to detect and take up these amino acids from a broad range of different and changing nitrogen sources inside the host, this fungus must be able to adapt via its expression of genes for amino acid uptake and further metabolism. We analyzed six C. albicans putative general amino acid permeases based on their homology to the Saccharomyces cerevisiae Gap1 general amino acid permease. We generated single- and multiple-deletion strains and found that, based on growth assays and transcriptional or posttranscriptional regulation, Gap2 is the functional orthologue to ScGap1, with broad substrate specificity. Expression analysis showed that expression of all GAP genes is under control of the Csy1 amino acid sensor, which is different from the situation in S. cerevisiae, where the expression of ScGAP1 is not regulated by Ssy1. We show that Gap4 is the functional orthologue of ScSam3, the only S-adenosylmethionine (SAM) transporter in S. cerevisiae, and we report that Gap4 is required for SAM-induced morphogenesis. IMPORTANCECandida albicans is a commensal organism that can thrive in many niches in its human host. The environmental conditions at these different niches differ quite a bit, and this fungus must be able to sense these changes and adapt its metabolism to them. Apart from glucose and other sugars, the uptake of amino acids is very important. This is underscored by the fact that the C. albicans genome encodes 6 orthologues of the Saccharomyces. cerevisiae general amino acid permease Gap1 and many other amino acid transporters. In this work, we characterize these six permeases and we show that C. albicans Gap2 is the functional orthologue of ScGap1 and that C. albicans Gap4 is an orthologue of ScSam3, an S-adenosylmethionine (SAM) transporter. Furthermore, we show that Gap4 is required for SAM-induced morphogenesis, an important virulence factor of C. albicans.
- Publikační typ
- časopisecké články MeSH
34 stran ; 24 cm
- MeSH
- etretinát MeSH
- kožní nemoci farmakoterapie MeSH
- lipoproteiny účinky léků MeSH
- psoriáza terapie MeSH
- PUVA terapie MeSH
- retinoidy MeSH
- Publikační typ
- rozhovory MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- dermatovenerologie
- farmacie a farmakologie
