report comment: Direction of FRT site: < (according to the convention that the XbaI site in the spacer of the FRT is closer to the arrowhead than the tail). The spacer sequence of a standard FRT is (in < orientation): 5\'-TCTAGAAA-3\'; (in > orientation): 5\'-TTTCTAGA-3\'.
report comment: Direction of FRT site: < (according to the convention that the XbaI site in the spacer of the FRT is closer to the arrowhead than the tail). The spacer sequence of a standard FRT is (in < orientation): 5\'-TCTAGAAA-3\'; (in > orientation): 5\'-TTTCTAGA-3\'.