Restriction Endonuclease AluⅠ; ALU I; ALU I RESTRICTION ENZYME; RESTRICTION ENDONUCLEASES ALU I; e.c.3.1.23.1; endodeoxyribonucleasealui; restrictionendodeoxyribo-nucleasalui; restrictionendonucleasealui; restriction endonuclease alu I from*arthrobacter