Abortive activity of Topoisomerase I: a challenge for genome integrity?

abstract：:Protoplasts of a pAN7-1-transformed isolate of Cladosporium fulvum race 4, harbouring a tandem duplication of the vector, and an untransformed race 5 isolate were fused, without selection for the presence of vector sequences. Fusion products were allowed to haploidize spontaneously. The inheritance of pAN7-1 sequences...

journal_title：Current genetics

authors： Arnau J,Oliver RP

更新日期：1993-05-01 00:00:00

abstract：:By functional complementation of the auxotrophic requirements for choline of a cdg1, cho2 double-mutant, by transformation with a genomic DNA library in a high copy number plasmid, two different types of complementing DNA inserts were identified. One type of insert was earlier shown to represent the CHO2 structural ge...

journal_title：Current genetics

authors： Preitschopf W,Lückl H,Summers E,Henry SA,Paltauf F,Kohlwein SD

更新日期：1993-02-01 00:00:00

abstract：:Chaperonin 60 (Cpn60) is a well-established marker protein for eukaryotic mitochondria and plastids. In order to determine whether the small double-membrane-bounded organelle posterior to the nucleus in the apicomplexan Cryptosporidium parvum is a mitochondrion, the Cpn60 gene of C. parvum sporozoites ( CpCpn60) was a...

journal_title：Current genetics

authors： Riordan CE,Ault JG,Langreth SG,Keithly JS

更新日期：2003-11-01 00:00:00

abstract：:The hybrid vector pCP2, consisting of the bacterial plasmid pBR325, the nuclear gene Leu-2 of Saccharomyces cerevisiae and a fragment of mitochondrial DNA from Cephalosporium acremonium, was found to associate with the nucleus in a transformed strain of Saccharomyces cerevisiae. This was inducted by (1) efficient expr...

journal_title：Current genetics

authors： Tudzynski P,Esser K

更新日期：1983-04-01 00:00:00

abstract：:In Aspergillus nidulans, carbon catabolite repression (CCR) is mediated by the global repressor protein CreA. The deubiquitinating enzyme CreB is a component of the CCR network. Genetic interaction was confirmed using a strain containing complete loss-of-function alleles of both creA and creB. No direct physical inter...

journal_title：Current genetics

authors： Alam MA,Kelly JM

更新日期：2017-08-01 00:00:00

abstract：:The generation of a comprehensive EST library and the sequencing of its genome set the stage for reverse genetics approaches in Chlamydomonas reinhardtii. However, these also require tools for the specific downregulation of target gene expression. Consequently, a large number of diverse constructs were developed aimed...

journal_title：Current genetics

authors： Schroda M

更新日期：2006-02-01 00:00:00

abstract：:We report the nucleotide sequence of three tRNA genes from maize mitochondria. The genes are located in two BamHI fragments, 3.55 and 5.7 kb long, adjacent to the S2 sequence in the maize mitochondrial genome. On the 3.55 kb BamHI fragment, we have characterized a tRNA(Cys)(GCA) gene. A strong sequence homology of thi...

journal_title：Current genetics

authors： Wintz H,Grienenberger JM,Weil JH,Lonsdale DM

更新日期：1988-03-01 00:00:00

abstract：:Timely progression of living cells through the cell cycle is precisely regulated. This involves a series of phosphorylation events which are regulated by various cyclins, activated in coordination with the cell cycle progression. Phosphorylated proteins govern cell growth, division as well as duplication of the geneti...

journal_title：Current genetics

authors： Dmowski M,Fijałkowska IJ

更新日期：2017-12-01 00:00:00

abstract：:Yeast ornithine transaminase is known to be induced by arginine and ornithine, through the action of regulatory elements common to arginase induction. We show here that it is subject to a second induction circuit, that which is responsible for urea amidolyase and urea permease induction by allophanate and defined by t...

journal_title：Current genetics

authors： Hennaut C

更新日期：1981-09-01 00:00:00

abstract：:Efficient mating-type (MT) switching in homothallic strains of Schizosaccharomyces pombe is significantly reduced if they have a mutation in any of the eleven known swi genes. The swi4 mutation causes heterothallic as well as homothallic segregants, both of which have duplications in the MT region. In contrast to homo...

journal_title：Current genetics

authors： Fleck O,Heim L,Gutz H

更新日期：1990-12-01 00:00:00

abstract：:Two types of DNA sequence polymorphisms were found among different geographic isolates of the basidiomycete fungus Coprinus einereus. These strains showed gains and losses of restriction enzyme recognition sites as well as extensive insertion/ deletion variation within DNA sequences present in a single copy per haploi...

journal_title：Current genetics

authors： Wu MM,Cassidy JR,Pukkila PJ

更新日期：1983-09-01 00:00:00

abstract：:The ribosomal proteins of two ascomycetes Podospora anserina and Saccharomyces cerevisiae, were compared by two dimensional electrophoresis in two different gel systems and we found only five pairs of proteins which have kept homologous physico-chemical properties under these conditions. An immunological analysis was ...

journal_title：Current genetics

authors： Le Goff V,Perrot M,Begueret J

更新日期：1984-12-01 00:00:00

abstract：:Unlike most polymorphic markers in the Chlamydomonas eugametos and Chlamydomonas moewusii chloroplast DNAs (cpDNAs), the C. moewusii 6- and 21-kb extra sequences and the C. eugametos-specific CeLSU small middle dot 5 intron are transmitted to all of the few viable progeny in reciprocal crosses between the two green al...

journal_title：Current genetics

authors： Bussières J,Lemieux C,Lee RW,Turmel M

更新日期：1996-09-01 00:00:00

abstract：:In order to study resistance to DNA damaging agents, yeast DNA segments conferring hyperresistance in this organism to such genotoxic agents were selected for among yeast cells transformed by a yeast genome library based on the multi-copy vector plasmid YEp13. Genetic variants hyperresistant to 4-nitroquinoline-N-oxid...

journal_title：Current genetics

authors： Ruhland A,Brendel M,Haynes RH

更新日期：1986-01-01 00:00:00

abstract：:Ubiquitination/deubiquitination pathways are now recognized as key components of gene regulatory mechanisms in eukaryotes. The major transcriptional repressor for carbon catabolite repression in Aspergillus nidulans is CreA, and mutational analysis led to the suggestion that a regulatory ubiquitination/deubiquitinatio...

journal_title：Current genetics

authors： Alam MA,Kamlangdee N,Kelly JM

更新日期：2016-09-02 00:00:00

abstract：:A fine restriction map of the linear mitochondrial DNA of Tetrahymena pyriformis strain ST is presented. 1. Based on agarose gel electrophoresis data together with limited nucleotide sequences available on some restriction fragments, we estimate the actual size of this genome to be about 55,000 base pairs. 2. Seven tR...

journal_title：Current genetics

authors： Suyama Y,Fukuhara H,Sor F

更新日期：1985-01-01 00:00:00

abstract：:The soil-borne, asexual fungus Fusarium oxysporum f.sp. lycopersici (Fol) is a causal agent of tomato wilt disease. The infection process of Fol comprises root recognition, adhesion, penetration, colonization of the root cortex and hyphal proliferation within the xylem vessels, which are under the regulation of virule...

journal_title：Current genetics

authors： Yun Y,Zhou X,Yang S,Wen Y,You H,Zheng Y,Norvienyeku J,Shim WB,Wang Z

更新日期：2019-06-01 00:00:00

abstract：:In Chlamydomonas reinhardtii, the expression of the nit1 gene encoding nitrate reductase is dependent on the nature of the nitrogen source and on other environmental factors. We have fused the nit1 promoter region to the arylsulphatase (ars) reporter gene lacking its own promoter and introduced this chimeric construct...

journal_title：Current genetics

authors： Ohresser M,Matagne RF,Loppes R

更新日期：1997-03-01 00:00:00

abstract：:In the filamentous ascomycete fungus Podospora anserina, senescence is associated with dramatic changes of the juvenile mitochondrial genome. During senescence specific regions of the non-senescent genome are excised, ligated and amplified as a plasmid. In this paper, we report our studies on nuclear-mitochondrial ext...

journal_title：Current genetics

authors： Steinhilber W,Cummings DJ

更新日期：1986-01-01 00:00:00

abstract：:Cell fusion occurs regularly during the vegetative and sexual phases of the life cycle in filamentous fungi. Here, we present a simple and efficient method that can detect even rare hyphal fusion events. Using the homothallic ascomycete Sordaria macrospora as an experimental system, we developed a histone-assisted mer...

journal_title：Current genetics

authors： Rech C,Engh I,Kück U

更新日期：2007-11-01 00:00:00

abstract：:The cDNA coding for the endoglucanase EGII of P. janthinellum was cloned and sequenced. The open reading frame comprises 1230 nucleotides and the deduced amino-acid sequence shows an overall homology of 63% with the T. reesei egl2. The cellulose-binding domain of EGII represents a typical member of the A family of cel...

journal_title：Current genetics

authors： Mernitz G,Koch A,Henrissat B,Schulz G

更新日期：1996-04-01 00:00:00

abstract：:Mitochondrial genomes in organisms from diverse phylogenetic groups vary in both size and molecular form. Although the types of mitochondrial genome appear very dissimilar, several lines of evidence argue that they do not differ radically. This would imply that interconversion between different types of mitochondrial ...

journal_title：Current genetics

authors： Nosek J,Tomáska L

更新日期：2003-11-01 00:00:00

abstract：:DNA analysis of Cephalosporium acremonium revealed that this important fungus for biotechnology contains, apart from chromosomal DNA, two types of extrachromosomal DNA which may be useful for the development of a homologous vector system: 1. Plasmid-like (pl) DNA consisting of circular molecules, but of rather heterog...

journal_title：Current genetics

authors： Minut W,Tudzynsk P,Esser K

更新日期：1982-08-01 00:00:00

abstract：:The complete nucleotide sequence of the Morus mongolica chloroplast (cp) genome was reported and characterized in this study. The cp genome is a circular molecule of 158,459 bp containing a pair of 25,678 bp IR regions, separated by small and large single-copy regions of 19,736 and 87,363 bp, respectively. The number ...

journal_title：Current genetics

authors： Kong W,Yang J

更新日期：2016-02-01 00:00:00

abstract：:In biological systems, reactive oxygen species (ROS) represent 'double edged swords': as signaling molecules they are essential for proper development, as reactive agents they cause molecular damage and adverse effects like degeneration and aging. A well-coordinated control of ROS is therefore of key importance. Super...

journal_title：Current genetics

authors： Grimm C,Böhl L,Osiewacz HD

更新日期：2015-02-01 00:00:00

abstract：:We have further characterized the functionality of the Saccharomyces cerevisiae gene SLT2(MPK1), coding for a MAP-kinase homolog essential for cell integrity, which is involved in the Pkc1p signalling pathway. This gene was isolated on the basis of its capacity to complement the thermosensitive-autolytic, osmotic-reme...

journal_title：Current genetics

authors： Martín H,Castellanos MC,Cenamor R,Sánchez M,Molina M,Nombela C

更新日期：1996-05-01 00:00:00

abstract：:Adaptation by natural selection might improve the fitness of an organism and its probability to survive in unfavorable environmental conditions. Decoding the genetic basis of adaptive evolution is one of the great challenges to deal with. To this purpose, Saccharomyces cerevisiae has been largely investigated because ...

journal_title：Current genetics

authors： Tosato V,Sims J,West N,Colombin M,Bruschi CV

更新日期：2017-05-01 00:00:00

abstract：:We have found no evidence for an adaptive response for either lethality or mutagenesis following treatment of Saccharomyces cerevisiae with N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). The rad6 and rad52 mutants of S. cerevisiae are highly defective in MNNG and ethyl methanesulfonate induced mutagenesis of both statio...

journal_title：Current genetics

authors： Polakowska R,Perozzi G,Prakash L

更新日期：1986-01-01 00:00:00

abstract：:A model for the recombination-directed replication and amplification of the mtDNA of amphimeric petite mutants of S. cerevisiae is proposed. Replication of an amphimeric master basic unit datA would be initiated in the inverted components a and A. The initiation of replication should be associated with the amphimeric ...

journal_title：Current genetics

authors： Rayko E,Goursot R

更新日期：1996-07-31 00:00:00

abstract：:The Saccharomyces cerevisiae open reading frame YDL202w has been characterised in the course of the EUROFAN yeast genome analysis program. Disruption of YDL202w causes a respiratory deficient phenotype accompanied by a loss of mitochondrial DNA. This phenotype is usually found in mutants defective in mitochondrial rep...

journal_title：Current genetics

authors： Bui DM,Jarosch E,Schweyen RJ

更新日期：1997-05-01 00:00:00