Abstract: The present invention relates to an isolated polypeptide comprising (a) a protein of interest; (b) a first member of a pair of binding partners; (c) an affinity tag for immobilizing the polypeptide on a solid support; and (d) a modified endoprotease recognition site, wherein the modified endoprotease recognition site is located directly adjacent to the N-terminal amino acid of the protein of interest and comprises or only consists of the amino acid sequence N-terminal of the cleavage site of the native endoprotease recognition site. The present invention also relates to a nucleic acid encoding the above polypeptide and a host cell thereof, a method for isolating a protein of interest using the above polypeptide as a fusion partner and a protease fusion protein with the second member of the pair of binding partners and kits thereof.

Abstract: The present invention is directed to p53 activating peptides. The present further describes methods for generating these peptides and the use of these peptides.

Abstract: The present invention relates to peptide biosensors comprising (a) a protease recognition site; (b) an analyte binding site; and (c) a signaling moiety that can produce a detectable signal upon cleavage of the protease recognition site by a protease. Further encompassed are detection reagents that comprise said peptide biosensors in combination with a protease and methods for detecting the presence of an analyte molecule or screening of candidate compounds that modulate the binding of an analyte to a binding partner of the analyte.

Abstract: The present invention is directed to p53 activating peptides. The present further describes methods for generating these peptides and the use of these peptides.

Abstract: The present invention refers to a fusion protein biosensor, comprising a peptide or protein domain that binds an analyte of interest (A), an entity that can produce a detectable signal (B), and an entity that binds to B and modulate the signal produced by B when A is not bound to the analyte. A method and a kit for detecting a presence or amount of an analyte molecule using the fusion protein is also disclosed.

Abstract: The present invention refers to muteins of the bacteriophage lambda integrases and to nucleic acid molecules comprising a nucleotide sequence encoding such muteins of the lambda integrases. The invention further refers to host cells containing a nucleic acid molecule comprising a nucleotide sequence encoding such muteins of the lambda integrases. The invention also refers to methods of recombining nucleic acids of interest into target nucleic acids in the presence of the muteins of the lambda integrases, as well as sequence specific recombination kits.