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Nikkomycin Z inhibits chitin synthase in vitro but does not exhibit antifungal activity against many pathogens. Assays of chitin synthase isozymes and growth assays with isozyme mutants were used to demonstrate that nikkomycin Z is a selective inhibitor of chitin synthase 3. The resistance of chitin synthase 2 to nikkomycin Z in vitro is likely responsible(More)
The induction of vancomycin resistance in enterococci containing the vanA gene cluster is thought to be controlled by a two-component sensor-response regulator system encoded by vanR and vanS. Eight inducing compounds were identified by screening a panel of more than 6,800 antibiotics and synthetic compounds including the three tested glycopeptides(More)
The Saccharomyces cerevisiae cytochrome P450 L1A1 (lanosterol 14 alpha-demethylase)-coding gene was used as a hybridization probe to isolate two HindIII fragments of 2.5 kb and 6.85 kb from a phage lambda library of Candida albicans nucleotide sequences. Restriction endonuclease mapping and Southern blot hybridization experiments indicated that these(More)
Growth hormone-releasing hormone (GHRH) belongs to the family of gut-neuropeptide hormones which also includes glucagon, secretin and vasoactive intestinal peptide (VIP). All receptors for this peptide hormone family seem to involve similar signal transduction pathways. Upon hormone binding, these receptors interact with guanine nucleotide binding protein(More)
A pool of Candida albicans RsaI fragments cloned onto a vector containing pBR322 sequences and the Candida ADE2 gene was used to transform a Candida ade2 mutant to adenine protrophy. A potential autonomously replicating sequence (ARS) in Candida DNA was identified by two criteria: instability of the selectable marker in the absence of selection and the(More)
A Saccharomyces cerevisiae sequence cloned by serendipity was found to encode a protein that is a new member of the Ypt/Rab monomeric G-protein family. This sequence shows high homology to the yeast genes SEC4 and YPT1 and, like SEC4 and YPT1, is essential for viability. The sequence was localized to chromosome V based upon hybridization to pulse-field(More)
Five sequences were isolated by selection for multiple copy plasmids that conferred resistance to laminarinase, an enzyme that specifically degrades cell wall beta(1-3) glucan linkages. Strains carrying three of these plasmids showed alterations in cell wall glucan labelling. One of these plasmids carried PBS2, a previously identified, non-essential gene(More)