نتایج جستجو برای: yac clone
تعداد نتایج: 39207 فیلتر نتایج به سال:
Many infectious diseases of global impact are caused by parasites. This includes diseases with protozoan etiology, such as malaria, African sleeping sickness, Chagas disease, toxoplasmosis, and amoebiasis, as well as diseases caused by metazoa, such as river blindness, schistosomiasis, ecchinococcosis, and ascariasis. Combined, parasitic diseases affect more than half the world's human populati...
The transcription factor Pax6 is a crucial regulator of eye and central nervous system development. Both the spatiotemporal patterns and the precise levels of Pax6 expression are subject to tight control, mediated by an extensive set of cis-regulatory elements. Previous studies have shown that a YAC reporter transgene containing 420 Kb of genomic DNA spanning the human PAX6 locus drives express...
To determine the chromosomal positions of expressed rice genes, we have performed an expressed sequence tag (EST) mapping project by polymerase chain reaction-based yeast artificial chromosome (YAC) screening. Specific primers designed from 6713 unique EST sequences derived from 19 cDNA libraries were screened on 4387 YAC clones and used for map construction in combination with genetic analysis...
Yeast artificial chromosomes (YACs) with inserts averaging hundreds of kilobases in size have proven very useful for the construction of physical maps of large genomes (1). However, YACs are not ideal large-insert clones. For example, the frequent occurrence of chimeric inserts complicates the use of YACs for physical mapping, walking from insert ends, and determination of contiguous DNA sequen...
The predominant genetic defect causing p47phox –deficient chronic granulomatous disease (A47 8 CGD) is a GT deletion ( D GT) at the beginning of exon 2. No explanation exists to account for the high incidence of this single mutation causing a rare disease in an unrelated, racially diverse population. In each of 34 consecutive unrelated normal individuals, both the normal and mutant D GT sequenc...
Levels of Lp(a), an atherogenic lipoprotein that circulates in human plasma, are increased by the administration of growth hormone (GH). Many of the physiological effects of GH are mediated through insulin-like growth factor-1 (IGF-1), but ironically, IGF-1 treatment of humans is associated with a fall in plasma Lp(a) levels. To glean insight into the mechanism responsible for the GH-associated...
Partial restriction digestion is used to map restriction sites and the location of genes within yeast artificial chromosomes (YACs). Locus-specific probes are hybridised to the partially digested YAC DNA and the fragments to which they hybridise are compared with the pattern of partial digestion products that include each map region. A least squares criterion is presented which allows for error...
We have generated a site-specific 17 bp insertion within a 38 kb chick globin gene cluster by employing the recombination abilities of Saccharomyces cerevisiae. This gene cluster contains four beta-type globin genes which share a high degree of sequence homology. In this procedure, a small fragment of beta A-globin DNA containing a 17 bp insertion is subcloned into a URA3-based yeast integratin...
The functional analysis of genes frequently requires manipulation of large genomic regions embedded in yeast artificial chromosomes (YACs). We have designed a yeast-bacteria shuttle vector, pClasper, that can be used to clone specific regions of interest from YACs by homologous recombination. The important feature of pClasper is the presence of the mini-F factor replicon. This leads to a signif...
Splenic lymphoma with villous lymphocytes (SLVL) is a low-grade lymphoproliferative disorder characterized by splenomegaly and circulating villous lymphocytes in the peripheral blood. It is considered to be the leukemic form of splenic marginal zone lymphoma (SMZL). The genetic basis of this lymphoma type remains unknown. Conventional cytogenetic studies have identified frequent structural abno...
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