0000000000237316

AUTHOR

Joachim F. Ernst

showing 4 related works from this author

CandidaDB: a genome database for Candida albicans pathogenomics.

2004

CandidaDB is accessible at http://genolist.pasteur.fr/CandidaDB.; International audience; CandidaDB is a database dedicated to the genome of the most prevalent systemic fungal pathogen of humans, Candida albicans. CandidaDB is based on an annotation of the Stanford Genome Technology Center C.albicans genome sequence data by the European Galar Fungail Consortium. CandidaDB Release 2.0 (June 2004) contains information pertaining to Assembly 19 of the genome of C.albicans strain SC5314. The current release contains 6244 annotated entries corresponding to 130 tRNA genes and 5917 protein-coding genes. For these, it provides tentative functional assignments along with numerous pre-run analyses th…

Protein familyGenomicsComputational biologyBiologyGenomeANNOTATIONFUNCTIONNAL ASSIGNEMENTFungal ProteinsUser-Computer Interface03 medical and health sciencesAnnotationPathogenomicsCandida albicansDatabases GeneticGeneticsGENOME DATABASE[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biochemistry [q-bio.BM]GeneComputingMilieux_MISCELLANEOUS030304 developmental biologyWhole genome sequencingGeneticsInternet0303 health sciencesFungal protein030306 microbiologygénomeEUROPEAN CONSORTIUMGENOME SEQUENCEGenomicsArticlesGENOME DATABASE;CANDIDA DB;ANNOTATION;GENOME SEQUENCE;GENE FUNCTION;EUROPEAN CONSORTIUM;FUNCTIONNAL ASSIGNEMENTGENE FUNCTIONCANDIDA DB[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyGenome FungalNucleic Acids Research
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The 5′ Untranslated Region of the EFG1 Transcript Promotes Its Translation To Regulate Hyphal Morphogenesis in Candida albicans

2018

ABSTRACTExtensive 5’ untranslated regions (UTR) are a hallmark of transcripts determining hyphal morphogenesis inCandida albicans.The major transcripts of theEFG1gene, which are responsible for cellular morphogenesis and metabolism, contain a 5’ UTR of up to 1170 nt. Deletion analyses of the 5’ UTR revealed a 218 nt sequence that is required for production of the Efg1 protein and its functions in filamentation, without lowering the level and integrity of theEFG1transcript. Polysomal analyses revealed that the 218 nt 5’ UTR sequence is required for efficient translation of the Efg1 protein. Replacement of theEFG1ORF by the heterologous reporter geneCaCBGlucconfirmed the positive regulatory i…

0301 basic medicineUntranslated regionFive prime untranslated region030106 microbiologyEFG1lcsh:QR1-502Morphogenesishyphal morphogenesistranslationMicrobiologiaHeterologousContext (language use)posttranscriptional regulationBiologyMicrobiologylcsh:Microbiology03 medical and health sciences5′ UTRCandida albicansMolecular BiologyGeneReporter geneTranslation (biology)QR1-502Cell biologyfilamentationOpen reading frame030104 developmental biologyRegulatory sequencemSphere
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Dom34 Links Translation to Protein O-mannosylation.

2016

In eukaryotes, Dom34 upregulates translation by securing levels of activatable ribosomal subunits. We found that in the yeast Saccharomyces cerevisiae and the human fungal pathogen Candida albicans, Dom34 interacts genetically with Pmt1, a major isoform of protein O-mannosyltransferase. In C. albicans, lack of Dom34 exacerbated defective phenotypes of pmt1 mutants, while they were ameliorated by Dom34 overproduction that enhanced Pmt1 protein but not PMT1 transcript levels. Translational effects of Dom34 required the 5′-UTR of the PMT1 transcript, which bound recombinant Dom34 directly at a CA/AC-rich sequence and regulated in vitro translation. Polysomal profiling revealed that Dom34 stimu…

0301 basic medicineUntranslated regionCancer ResearchGlycosylationMolecular biologyHydrolasesOligonucleotidesGene ExpressionRNA-binding proteinCell Cycle ProteinsYeast and Fungal ModelsPathology and Laboratory MedicineMannosyltransferasesBiochemistryTranscription (biology)Untranslated RegionsCandida albicansMedicine and Health SciencesProtein IsoformsGenetics (clinical)CandidaFungal PathogensNucleotidesMessenger RNACell biologyEnzymesNucleic acidsDenaturationPhenotypesPhenotypeMedical MicrobiologySaccharomyces CerevisiaePathogensResearch ArticleGene isoformSaccharomyces cerevisiae Proteinslcsh:QH426-470NucleasesSaccharomyces cerevisiaeMycologyBiologyResearch and Analysis MethodsMicrobiology03 medical and health sciencesSaccharomycesModel OrganismsRibonucleasesDownregulation and upregulationEndoribonucleasesDNA-binding proteinsGeneticsHumansGeneMicrobial PathogensEcology Evolution Behavior and Systematics030102 biochemistry & molecular biologyOrganismsFungiBiology and Life SciencesProteinsRibosomal RNAbiology.organism_classificationMolecular biologyYeastRNA denaturationlcsh:Genetics030104 developmental biologyMolecular biology techniquesProtein BiosynthesisEnzymologyRNAProtein TranslationRibosomesPLoS Genetics
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Dosage-dependent roles of the Cwt1 transcription factor for cell wall architecture, morphogenesis, drug sensitivity and virulence in Candida albicans.

2009

The Cwt1 transcription factor is involved in cell wall architecture of the human fungal pathogen Candida albicans. We demonstrate here that deficiency of Cwt1 leads to decreased β1,6-glucan in the cell wall, while mannoproteins are increased in the cell wall of exponentially growing cells and are released into the medium of stationary phase cells. Hyphal morphogenesis of cwt1 mutants is reduced on the surfaces of some inducing media. Unexpectedly, the CWT1/cwt1 heterozygous strains shows some stronger in vitro phenotypes compared to the homozygous mutant. The heterozygous but not the homozygous strain is also strongly impaired for its virulence in a mouse model of systemic infection. We sug…

Antifungal AgentsMutantMorphogenesisGene DosageHyphaeVirulenceBioengineeringApplied Microbiology and BiotechnologyBiochemistryMicrobiologyCell wallFungal ProteinsMiceCell WallDrug Resistance FungalGene Expression Regulation FungalCandida albicansGeneticsMorphogenesisAnimalsHumansCandida albicansDNA FungalTranscription factorOligonucleotide Array Sequence AnalysisMembrane GlycoproteinsbiologyVirulenceHomozygoteCandidiasisbiology.organism_classificationPhenotypeCorpus albicansMutationBiotechnologyTranscription FactorsYeast (Chichester, England)
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