POLYPEPTIDE WITH ENHANCED RATE OF SPONTANEOUS ISOPEPTIDE BOND FORMATION WITH ITS PEPTIDE TAG PARTNER AND USES THEREOF

摘要

The present invention relates to a polypeptide that forms one part of a two- part linker in which the polypeptide spontaneously forms an isopeptide bond with a peptide tag, the second part of the two-part linker. Nucleic acid molecules encoding the polypeptide, vectors comprising said nucleic acid molecules,and host cells comprising said vectors and nucleic acid molecules are also provided. A kit comprising said two-part linker (i.e. peptide tag and polypeptide binding partner), and/or nucleic acid molecules/vectors is also provided. A method of producing the polypeptide (binding partner) and the uses of the polypeptide of the invention are also provided.