FIELD: biotechnology; medicine.
SUBSTANCE: present invention relates to biotechnology and medicine, in particular to a single-chain fusion protein for inhibiting the cellular secretion of a target cell, a nucleic acid, an expression vector, a method for producing a fusion protein and a three-chain non-cytotoxic protein under the action of a protease on a fusion protein, as well as the use of proteins of the invention for the treatment of pathophysiological conditions associated with cellular hypersecretion. Said protein includes a non-cytotoxic protease, a targeting moiety, that is capable of binding to a binding site on the target cell, a translocation domain that is capable of translocating the protease into the cytosol of the target cell, two protease cleavage sites and a covalent bond between the targeting moiety and the translocation domain.
EFFECT: present invention improves binding due to the presence of certain targeting moieties in the fusion protein structure.
23 cl, 1 dwg, 18 ex
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Authors
Dates
2018-04-19—Published
2012-05-16—Filed