Novel peptide conjugates, the hybrid complexes and use thereof

The present invention, the protein even if the target transport material, can be introduced efficiently into the cell without being greatly influenced by the type of protein, also after the protein has been introduced inside the cell be exhibited without intended function is inhibited, yet does not use metal effects on the living body is concerned, provides a means for delivering the transport material into cells. Peptide complex according to the present invention [A] is SEQ ID NO 1: N'-EYQALKKKVAQLKAKNQALKKKVAQLKHK-C 'leucine zipper peptides comprising the amino acid sequence of [LZ (K)] and the like, or SEQ ID NO 2: N'-EYQALEKEVAQLEAENQALEKEVAQLEHE-C' a leucine zipper peptide [LZ (E)] or the like which consists of the following amino acid sequence characterized in that it contains a thereto linked intracellular penetrating peptide [CPP].