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Here, we describe a method that offers a unique way to engineer plasmids with precision but without digestion using restriction enzymes for the insertion of DNA. The method allows the insertion of PCR fragments in between any two nucleotides within a target plasmid. The only requirement is that the amplified fragments must be embedded between DNA sequences(More)
Hu-antigen R (HuR) is a ubiquitous RNA-binding protein that comprises three RNA recognition motifs (RRMs). The first two tandem RRMs are known to bind to AU-rich elements (AREs) in the 3'-untranslated region of many mRNAs. The third RRM is connected to the second RRM through a basic hinge region that contains a localization signal termed HuR(More)
Low levels of expression in Escherichia coli are often observed when using wild type proteins. The addition of an N-terminal His-tag to these same proteins dramatically improves the level of expression. We therefore concluded that post-transcriptional regulation and in particular translational regulation are probably influenced by the presence of the tag.(More)
Opioid receptors, like many G protein-coupled receptors (GPCRs), are notoriously unstable in detergents. We have now developed a more stable variant of the mu-opioid receptor (MOR) and also a method for the immobilization of solubilized, functional opioid receptors on a solid phase (magnetic beads). Starting with the intrinsically more stable kappa-opioid(More)
The selective infective phage (SIP) technology allows a rapid positive selection of interacting pairs of biological molecules that restore to non-infectious phages their ability to infect the bacterial host. After a successful infection, the phage is amplified and the DNA encoding the interacting ligand is isolated from the phage genome and sequenced. In(More)
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