摘要:
Compositions and methods are provided for Tat-inducible expression of a CRISPR-associated endonuclease by a truncated HIV LTR promoter containing at least a core region and a TAR region of a HIV LTR promoter. The compositions may be used as a therapeutic treatment for the treatment and/or prevention of HIV.
摘要:
A recombinant herpesvirus-based vector comprising a nucleic acid sequence encoding a heterologous antigen and a promoter for controlling the expression of the antigen, in which the promoter is expressed at a time selected to provide a required immune response in a subject.
摘要:
The present disclosure provides a recombinant expression vector comprising a nucleotide sequence encoding a herpesvirus transactivator, where the nucleotide sequence is operably linked to a herpesvirus control element. The present disclosure provides cell lines genetically modified to express a herpesvirus transactivator under the control of a herpesvirus control element. The present disclosure provides methods of identifying agents that disrupt feedback regulation of a herpesvirus transcriptional control element by a herpesvirus transactivator.
摘要:
The present invention is based on the finding that the combination of a specific 5′UTR polynucleotide sequence (see SEQ ID NO 1) and the hCD33 secretory leader sequence in an expression cassette for expressing a polypeptide of interest results in a surprisingly better expression level of the polypeptide of interest compared to prior art expression cassettes. Based on this finding, the present invention inter alia provides novel expression cassettes, expression vectors and methods for producing a polypeptide of interest with high yield.
摘要:
Herein is reported that for transient transfections the use of the human elongation factor 1 alpha promoter (with Intron A) provides for an enhanced productivity (in LC-HC-SM organization), the use of the bovine growth hormone polyA signal sequence provides for an enhanced productivity compared to use of the SV40 polyA signal sequence, the addition of the HGT to the bGH PolyA signal sequence results in an increased productivity in vectors containing the hCMV promoter and the vector organization LC(3′-5′)-HC-SM results in improved expression. For stable pools it is reported that pools generated with vectors containing the hEF1α promoter show an enhanced productivity in batch analysis, clones generated with vectors containing the hEF1α promoter show a reduced number of low producing clones, and clones generated with vectors containing the hEF1α promoter show a higher stability of IgG expression. For single clones it is reported that the vector organization with downstream position of selection marker (LC-HC-SM) has a positive effect on productivity of single clones and that clones generated with vectors containing the bGH polyA signal sequence and the hGT have higher productivities.