Method for introducing gene into cell, and composition for use in the method

摘要

The present invention provides a method for transferring a gene into cells, which is practically useful and can achieve high transfer efficiency, and also a composition for use in the method. By bringing a mixture of a composition comprising a diallylamine sulfur dioxide copolymer having a repeating unit represented by the formula (1) or a salt thereof and a gene into contact with a cell, a gene such as DNA and RNA can be transferred into a target cell safely and conveniently, and into a cell at a specific site with high gene transfer efficiency.