Abstract

The insulin receptor-related receptor (IRR) is a cellular sensor of a weakly alkaline medium. Its spatial structure and the mechanism of activation have not been yet established. In the present work, a system of heterologous expression of full-length IRR tyrosine kinase has been created. A plasmid construct encoding the cDNA of the full-length human IRR fused at the C-terminus with the green fluorescent protein (GFP) has been generated, and the hybrid protein has been expressed in HEK293 line cells. It has been shown that the receptor incorporated in the hybrid protein is expressed on the cytoplasmic membrane and retains its functional activity. The resulting protein can be used in further studies of the structure and function of IRR.

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