DNA delivery with hyperbranched polylysine: A comparative study with linear and dendritic polylysine
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Since the advent of microarrays, vast amounts of gene expression data have been generated. However, these microarray data fail to reveal the transcription regulatory mechanisms that underlie differential gene expression, because the identity of the respons ...
Two alpha-L-rhamnohydrolases with different substrate specificities were isolated from a commercial preparation produced by Aspergillus aculeatus. The first rhamnohydrolase was active toward p-nitrophenyl-alpha-L-rhamnopyranoside, naringin, and hesperidin ...
Phorbol 12-myristate 13-acetate induces a 3- and 10-fold induction of chloramphenicol acetyltransferase (CAT) activity in HT1080 and HeLa cells, respectively, following transient transfection of a 336-base pair plasminogen activator inhibitor-1 (PAI-1) pro ...
Recombinant proteins are important for biomedical research and for the treatment of human disease. Therefore it is necessary to develop reproducible bioprocesses to rapidly produce proteins of adequate quality and quantity. Expression in mammalian cells is ...
To investigate developmental expression of the rat tyrosine aminotransferase (TAT) gene in normal and in albino lethal mice we generated transgenic mice carrying a fusion gene of TAT 5'-sequences (11 kb) and the bacterial chloramphenicol acetyltransferase ...
We have isolated and characterised the promoter of the mouse Scnn1a (alpha ENaC) gene. Using transient transfections of serial deletion mutants into Scnn1a-expressing cells, we demonstrate that 1.56 kb of 5' upstream sequence is required for cell-specific ...
Recent advances in genomics, proteomics, and structural biology raised the general need for significant amounts of pure recombinant protein (r-protein). Because of the difficulty in obtaining in some cases proper protein folding in bacteria, several method ...
We have developed a novel method called Calfection for gene delivery to and protein expression from suspension-cultivated mammalian cells. Plasmid DNA was simply diluted into a calcium chloride solution and then added to the cell culture for transfection. ...
In Klebsiella pneumoniae, the mucoid phenotype, which is a virulence factor, is distinct from capsule production. It is positively controlled by a plasmid gene, designated rmpA. When introduced into certain Escherichia coli strains, rmpA induces expression ...
OBJECTIVES: Lentiviral vectors can transduce nondividing cells. As most haematopoietic stem cells (HSCs) are nondividing in vivo, lentiviral vectors are promising viral vectors to transfer genes into HSCs. DESIGN AND SETTING: We have used HIV-1 based lenti ...