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Positively and tightly regulated gene expression is essential for gene function and gene therapy research. The currently-used inducible gene expression systems include tetracycline (Tet-on and T-REx), ecdysone, antiprogestin and dimerizer-based systems. Adenovirus (Ad) vectors play an important role in gene function and gene therapy research for their various advantages over other vector systems....
Galβ1-3Gal-NAcβ1-4Gal(3-2αNeuAc)β1-4Glcβ1-1Cer (GM1) is one of the most extensively investigated gangliosides that plays critical roles in the development and functions of the nervous system. UDP-Gal:βGlcNAc β1,3-galactosyltransferase (Gal-T-II) is responsible for synthesis of ganglioside GM1 in the ganglioside biosynthetic pathway. To understand the transcriptional regulation of Gal-T-II gene expression,...
The immunoglobulin D (IgD) antibody class was, for many years, identified only in primates, rodents and teleost fish. The limited distribution of IgD among vertebrates suggested that IgD is a functionally redundant antibody class that has been lost by many vertebrate species during evolution. The recent identification of IgD in artiodactyls, however, suggests that IgD might be more widely expressed...
In the present study, the cloning, expression and characterization of the rate-limiting enzyme of the peroxisomal β-oxidation spiral, acyl CoA oxidase (AOX), from koala (Phascolarctos cinereus) liver is described. It has been previously reported that peroxisomal cyanide-insensitive palmitoyl-CoA oxidation activity was absent in koala liver [Comp. Biochem. Physiol. (C) 127 (2000) 327]. This activity...
Microarray expression profiling of a collection of 15,000 mouse genes with placental and embryonic RNAs revealed candidates for placental-enriched genes, three of which we have confirmed and further characterized. One, Plac1, strongly expressed in all trophoblast-derived cells in the placenta, has been described earlier (Genomics 68 (2000) 305). Here we report that of the other two, Plac8 expression...
Multigenicity is one of the features of cancer/testis-associated genes. In the present study we analyzed the number and expression of genes of the SPANX CTp11 family of cancer/testis-associated genes. Genomic database analysis, next to the four previously described SPANX genes, revealed the presence of a novel gene: SPANXE. Moreover, we detected an allelic variant of SPANXB...
Vault RNA (vRNA) genes have been cloned from several vertebrates including rat, mouse, and humans. Their copy numbers vary, as does the length of the encoded RNA. We have determined that the mouse genome contains two vRNA genes; one is expressed the other is a pseudogene. In vitro transcription of the rat vRNA gene by RNA polymerase III has previously been shown to be dependent on a combination of...
Hox genes are organized in genomic clusters. In all organisms where their role has been studied, Hox genes determine developmental fate along the antero-posterior axis. Hence, these genes represent an ideal system for the understanding of relationships between the number and expression of genes and body organization. We report in this paper that the ascidian Ciona intestinalis genome appears to contain...
A DNA replication-related element (DRE)-binding factor (DREF) has been revealed to be an important transcription factor for activating promoters of cell proliferation and differentiation related genes. The amino acid sequences of DREF are conserved in evolutionary separate Drosophila species, Drosophila melanogaster (Dm) and Drosophila virilis (Dv) in three regions. In the present study, evidence...
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