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  • 1
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    Bakers' yeast, a model for fungal biofilm formation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: Biofilms are formed by the aggregation of microorganisms into multicellular structures that adhere to surfaces. Here we show that bakers' yeast Saccharomyces cerevisiae can initiate biofilm formation. When grown in low-glucose medium, the yeast cells adhered avidly to a number of plastic surfaces. On semi-solid (0.3% agar) medium they formed "mats": complex multicellular structures composed of yeast-form cells. Both attachment to plastic and mat formation require Flo11p, a member of a large family of fungal cell surface glycoproteins involved in adherence. The ability to study biofilm formation in a tractable genetic system may facilitate the identification of new targets for antifungal therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reynolds, T B -- Fink, G R -- 5 RO1 GM40266/GM/NIGMS NIH HHS/ -- GM20565/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Feb 2;291(5505):878-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11157168" target="_blank"〉PubMed〈/a〉
    Keywords: Agar ; Biofilms/*growth & development ; Cell Adhesion ; Culture Media ; Fungal Proteins/genetics/physiology ; Genes, Fungal ; Glucose ; Lipoproteins/physiology ; MAP Kinase Signaling System/genetics/physiology ; Membrane Glycoproteins ; Membrane Proteins/genetics/physiology ; *Nuclear Proteins ; Peptides/physiology ; Pheromones ; Plastics ; Ploidies ; Saccharomyces cerevisiae/genetics/growth & development/*physiology ; *Saccharomyces cerevisiae Proteins ; Trans-Activators/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Ploidy regulation of gene expression (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-10
    Description: Microarray-based gene expression analysis identified genes showing ploidy-dependent expression in isogenic Saccharomyces cerevisiae strains that varied in ploidy from haploid to tetraploid. These genes were induced or repressed in proportion to the number of chromosome sets, regardless of the mating type. Ploidy-dependent repression of some G1 cyclins can explain the greater cell size associated with higher ploidies, and suggests ploidy-dependent modifications of cell cycle progression. Moreover, ploidy regulation of the FLO11 gene had direct consequences for yeast development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galitski, T -- Saldanha, A J -- Styles, C A -- Lander, E S -- Fink, G R -- GM35010/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):251-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10398601" target="_blank"〉PubMed〈/a〉
    Keywords: Chitinase/genetics ; Cyclins/genetics ; Fungal Proteins/genetics ; G1 Phase ; *Gene Expression Regulation, Fungal ; Haploidy ; Lipoproteins/genetics/physiology ; Membrane Glycoproteins ; Membrane Proteins/genetics ; Oligonucleotide Array Sequence Analysis ; Peptides/genetics/physiology ; Pheromones ; *Ploidies ; Polyploidy ; Saccharomyces cerevisiae/cytology/*genetics/physiology ; *Saccharomyces cerevisiae Proteins ; Transcription Factors/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    BAS1 has a Myb motif and activates HIS4 transcription only in combination with BAS2 (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: The BAS1 and BAS2 proteins are both required for activation of GCN4-independent (basal) HIS4 transcription in yeast. BAS1 has an NH2-terminal region similar to those of the myb proto-oncogene family. BAS1 and BAS2, which contains a homeo box, bound to adjacent sites on the HIS4 promoter. The joint requirement of BAS1 and BAS2 for activation is probably not due to cooperative binding or the transcriptional control of one of the genes by the other. Although BAS1 and BAS2 were both required for activation of HIS4 transcription, BAS1 was not required for BAS2-dependent expression of the secreted acid phosphatases. The transcriptional activators of HIS4 have DNA binding domains that are conserved in evolution (BAS1 = Myb, BAS2 = homeo box, GCN4 = Jun). Their interactions, therefore, may be relevant to the control of gene expression in more complex systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tice-Baldwin, K -- Fink, G R -- Arndt, K T -- GM35010/GM/NIGMS NIH HHS/ -- GM39892/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):931-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683089" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Fungal Proteins/*genetics ; *Gene Expression Regulation ; *Genes, Fungal ; Molecular Sequence Data ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins c-myb ; Saccharomyces cerevisiae/*genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Nucleic Acid ; *Trans-Activators ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Combinatorial control required for the specificity of yeast MAPK signaling (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: In yeast, an overlapping set of mitogen-activated protein kinase (MAPK) signaling components controls mating, haploid invasion, and pseudohyphal development. Paradoxically, a single downstream transcription factor, Ste12, is necessary for the execution of these distinct programs. Developmental specificity was found to require a transcription factor of the TEA/ATTS family, Tec1, which cooperates with Ste12 during filamentous and invasive growth. Purified derivatives of Ste12 and Tec1 bind cooperatively to enhancer elements called filamentation and invasion response elements (FREs), which program transcription that is specifically responsive to the MAPK signaling components required for filamentous growth. An FRE in the TEC1 promoter functions in a positive feedback loop required for pseudohyphal development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Madhani, H D -- Fink, G R -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1314-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036858" target="_blank"〉PubMed〈/a〉
    Keywords: Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; DNA-Binding Proteins/genetics/*metabolism ; *Enhancer Elements, Genetic ; Fungal Proteins/*metabolism ; Intracellular Signaling Peptides and Proteins ; MAP Kinase Kinase Kinases/metabolism ; Mitogen-Activated Protein Kinase Kinases ; Mutation ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Retroelements ; Saccharomyces cerevisiae/genetics/growth & development/*metabolism ; *Saccharomyces cerevisiae Proteins ; *Schizosaccharomyces pombe Proteins ; Signal Transduction ; *Transcription Factors ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Elements of the yeast pheromone response pathway required for filamentous growth of diploids (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-12-10
    Description: Transmission of an external signal from receptors to downstream targets is often mediated by a conserved set of protein kinases that act in sequence (a kinase cascade). In haploid strains of Saccharomyces cerevisiae, a signal initiated by peptide pheromones is transmitted through this kinase cascade to a transcription factor STE12, which is required for the expression of many mating-specific genes. Here it was shown that in diploids some of the same kinases and STE12 are required for filamentous growth, but the pheromone receptors and guanosine triphosphate-binding protein are not required for filament formation. Thus, a similar kinase cascade is activated by different signals in haploids and diploids and mediates different developmental outcomes in the two cell types.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, H -- Styles, C A -- Fink, G R -- GM 35010/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1993 Dec 10;262(5140):1741-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8259520" target="_blank"〉PubMed〈/a〉
    Keywords: Fungal Proteins/*metabolism ; GTP-Binding Proteins/metabolism ; Genes, Fungal ; Mutation ; Peptides/*metabolism/pharmacology ; Phenotype ; Protein Kinases/*metabolism ; Receptors, Mating Factor ; Receptors, Peptide/metabolism ; Saccharomyces cerevisiae/genetics/*growth & development/metabolism ; *Saccharomyces cerevisiae Proteins ; *Signal Transduction ; Transcription Factors/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Suppression of hyphal formation in Candida albicans by mutation of a STE12 homolog (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-09
    Description: A Candida albicans gene (CPH1) was cloned that encodes a protein homologous to Saccharomyces cerevisiae Ste12p, a transcription factor that is the target of the pheromone response mitogen-activated protein kinase cascade. CPH1 complements both the mating defect of ste12 haploids and the filamentous growth defect of ste12/ste12 diploids. Candida albicans strains without a functional CPH1 gene (cph1/cph1) show suppressed hyphal formation on solid medium. However, cph1/cph1 strains can still form hyphae in liquid culture and in response to serum. Thus, filamentous growth may be activated in C. albicans by the same signaling kinase cascade that activates Ste12p in S. cerevisiae; however, alternative pathways may exist in C. albicans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, H -- Kohler, J -- Fink, G R -- GM402661/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1723-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7992058" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Candida albicans/cytology/genetics/*growth & development ; Cloning, Molecular ; Culture Media ; Fungal Proteins/chemistry/*genetics/physiology ; *Genes, Fungal ; Genetic Complementation Test ; Molecular Sequence Data ; Mutation ; Saccharomyces cerevisiae/cytology/genetics/growth & development ; *Saccharomyces cerevisiae Proteins ; Transcription Factors/chemistry/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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