(n.) A genus of budding fungi, the various species of which have the power, to a greater or less extent, or splitting up sugar into alcohol and carbonic acid. They are the active agents in producing fermentation of wine, beer, etc. Saccharomyces cerevisiae is the yeast of sedimentary beer. Also called Torula.
Example Sentences:
(1) Sequence specific binding of protein extracts from 13 different yeast species to three oligonucleotide probes and two points mutants derived from Saccharomyces cerevisiae DNA binding proteins were tested using mobility shift assays.
(2) The larger accumulation of Mn2+ than of Sr2+ in Saccharomyces cerevisiae is ascribed to the operation of a specific extrusion pump, presumably a Ca2+ pump, which has a higher affinity for Sr2+ than for Mn2+.
(3) A temperature-sensitive mutant of Saccharomyces cerevisiae was identified which at the restrictive temperature of 37 degrees C is unable to secrete a number of cell wall-associated proteins and thus resembles previously reported sec mutants.
(4) A multiprotein complex that specifically recognizes cellular origins of DNA replication has been identified and purified from the yeast Saccharomyces cerevisiae.
(5) In vivo, ribosomal RNA of Saccharomyces cerevisiae is transcribed from the light strand of gamma DNA.
(6) Genes of the baker's yeast Saccharomyces cerevisiae are densely clustered on 16 linear chromosomes.
(7) The Flp recombinase of Saccharomyces cerevisae can mediate strand transfer within a half-site, between two half-sites and between a half-site and a full-site.
(8) The factor is encoded by two genes in Saccharomyces cerevisiae, called TIF51A and TIF51B, which are regulated reciprocally by oxygen and by heme.
(9) Our strains of Saccharomyces cerevisiae are isochromosomal and isomitochondrial due to all of them have originated from one haploid pace XII of Sacch.
(10) Species of the genera Saccharomyces, Schizosaccharomyces, Debaryomyces and Schwanniomyces were compared from their extent of divergence in three regions from small (18S) and large (25S) subunit ribosomal RNAs comprising a total of 900 nucleotides.
(11) The biosynthesis of thymidylate in the yeast Saccharomyces cerevisiae can be inhibited by antifolate drugs.
(12) YEp plasmid stability in the presence of either Saccharomyces cerevisiae laboratory strain 2-microns DNA, or lager brewing yeast 2-microns DNA in the same genetic background, was compared under non-selective culture conditions.
(13) The nature and properties of the 20S ribonucleic acid which accumulates only during the sporulation of Saccharomyces cerevisiae were examined.
(14) Rates of phosphate uptake were approximately twice as great for Saccharomyces cerevisiae single-cell phenotypic isolates exposed to space parameters as for the wild-type ground control.
(15) Phosphatidylcholine of high specific radioactivity was prepared biosynthetically in good yield from [Me-(14)C]choline by using Saccharomyces cerevisiae.
(16) The 192 clinical isolates used in this study included 20 species of the genera Candida, Cryptoccoccus, Saccharomyces, Torulopsis, Trichosporon, Rhodotorula, and Geotrichum.
(17) Circumsporozoite proteins from the malaria parasites Plasmodium falciparum and Plasmodium vivax were expressed at high levels in the yeast Saccharomyces cerevisiae.
(18) Exogenous IC-DH in the incubation for LMA did not alter the mitotic crossing-over and the mitotic gene conversion of dimethylnitrosamine (DMNA) and AR2MNFN (a nitroimidazo[2,1-b]thiazole) in the tester D7 strain of Saccharomyces cerevisiae.
(19) A single-gene nuclear mutant has been isolated in Saccharomyces cerevisiae which cannot grow on minimal medium supplemented with ethanol, acetate, pyruvate, aspartate, or oxaloacetate as sole carbon sources.
(20) A three-dimensional model of yeast alcohol dehydrogenase, based on the homologous horse liver enzyme, was used to compare the substrate binding pockets of the three isozymes (I, II, and III) from Saccharomyces cerevisiae and the enzyme from Schizosaccharomyces pombe.
Yeast
Definition:
(n.) The foam, or troth (top yeast), or the sediment (bottom yeast), of beer or other in fermentation, which contains the yeast plant or its spores, and under certain conditions produces fermentation in saccharine or farinaceous substances; a preparation used for raising dough for bread or cakes, and making it light and puffy; barm; ferment.
(n.) Spume, or foam, of water.
(n.) A form of fungus which grows as indvidual rounded cells, rather than in a mycelium, and reproduces by budding; esp. members of the orders Endomycetales and Moniliales. Some fungi may grow both as a yeast or as a mycelium, depending on the conditions of growth.
Example Sentences:
(1) The data on mapping the episomal plasmid integration sites in yeast chromosomes I, III, IV, V, VII, XV are presented.
(2) The amino-terminal region of a 70 kDa mitochondrial outer membrane protein of yeast and the presequence of cytochrome c1, an inner membrane protein exposed to the intermembrane space, are thought to be responsible for localizing the proteins in their final destinations after synthesis in the cytosol.
(3) It has 61% homology with tRNA(Leu)(anticodon m5CAA) and 63% homology with tRNA(Leu)(anticodon UAG), the two other known yeast tRNAs(Leu).
(4) The yeasts amounts used did not protect the test animals from the kidney infiltration with lipids and cholesterol; 12 g of yeasts per 100 g of the ration promoted elevation of sialic acid content in the blood plasma.
(5) Sequence specific binding of protein extracts from 13 different yeast species to three oligonucleotide probes and two points mutants derived from Saccharomyces cerevisiae DNA binding proteins were tested using mobility shift assays.
(6) Recently, we have designed a series of simplified artificial signal sequences and have shown that a proline residue in the signal sequence plays an important role in the secretion of human lysozyme in yeast, presumably by altering the conformation of the signal sequence [Yamamoto, Y., Taniyama, Y., & Kikuchi, M. (1989) Biochemistry 28, 2728-2732].
(7) Using polyclonal antibodies raised against yeast p34cdc2, we have detected a 36 kd immunoactive polypeptide in macronuclei which binds to Suc1 (p13)-coated beads and closely follows H1 kinase activity.
(8) The fifth plasmid contains sequences which are repeated in the yeast genome, but it is not known whether any or all of the ribosomal protein gene on this clone contains repetitive DNA.
(9) The behaviour of the enzyme from Candida utilis and from Baker's yeast on columns of these and of Blue Sepharose CL-6B was examined, together with the behaviour of the contaminating enzyme, ribulose 5-phosphate 3-epimerase (EC 5.1.3.1).
(10) The most striking homology was to yeast SEC7 in the central domain of the gene (57% identical over 466 bp) and also the protein level (42% identical amino acids; 39% conserved amino acids).
(11) Dialyzed crude enzyme extracts from yeast cells were found to destroy diacetyl in a manner quite similar to that of diacetyl reductase from Aerobacter aerogenes, and both the bacterial and the yeast extracts were stimulated significantly by the addition of reduced nicotinamide adenine dinucleotide (NADH).
(12) D-Mannitol has not so far been known as a major product of sugar metabolism by yeasts.
(13) A multiprotein complex that specifically recognizes cellular origins of DNA replication has been identified and purified from the yeast Saccharomyces cerevisiae.
(14) When these sequences were fused to the N terminus of yeast cytochrome oxidase subunit IV lacking its own presequence, they directed the attached subunit IV to its correct intramitochondrial location in vivo.
(15) Escherichia coli tRNAAsp possessing a modified G residue, the Q base, at the first position of the anticodon, showed a weaker self-association than yeast tRNAAsp but its complex with E. coli tRNAVal was found to be only 1.5 times less stable than that between yeast tRNAAsp and E. coli tRNAVal.
(16) Growth of C. albicans in the presence of AGE affected the yeast lipid in a number of ways: the total lipid content was decreased; garlic-grown yeasts had a higher level of phosphatidylserines and a lower level of phosphatidylcholines; in addition to free sterols and sterol esters, C. albicans accumulated esterified steryl glycosides; the concentration of palmitic acid (16:0) and oleic acid (18:1) increased and that of linoleic acid (18:2) and linolenic acid (18:3) decreased.
(17) The antibiotic was effective against Gram-positive bacteria, fungi and yeasts, and prolonged the life span of mice bearing Ehrlich ascites carcinoma.
(18) Genes of the baker's yeast Saccharomyces cerevisiae are densely clustered on 16 linear chromosomes.
(19) The strong homology of mammalian L27' to yeast L29 suggests a function which has been conserved throughout evolution, and thus L27' may also be involved in peptidyl transferase activity.
(20) Plasma- and yeast-derived vaccines have been compared in several studies and their immunological properties were found to be similar, including the persistence of antibodies induced by either type of vaccine.