| abstract |
Facilitates introduction of nucleic acids into, for example, cells, etc., formula (A) (Wherein R 1 is alkenyl, etc. R 2 is alkenyl and the like, R 3 and R 4 are alkyl or taken together to form alkylene, or R 3 taken together with R 5 to form alkylene, R 5 is a hydrogen atom or the like, or together with R 3 forms an alkylene, X 1 is alkylene, Using a composition containing the cationic lipid and nucleic acid, a composition containing the cationic lipid and a nucleic acid, such as a cationic lipid represented by X 2 is a single bond or alkylene) A method for introducing a nucleic acid into a cell is provided. |