The present invention relates to a delivery system that comprises a conjugate that facilitates the delivery of a compound such as a biologically-active macromolecule, a nucleic acid or a peptide in particular, into a cell. The present invention also relates to said conjugate for delivery of a compound, such as a biologically-active macromolecule, a nucleic acid or a peptide, into a cell. The present invention further relates to a pharmaceutical composition comprising said conjugate and to its use. The present invention also relates to a method of delivering a compound to a cell or an organism, preferably a patient.
