we have established the following concerning this process : ( 1 ) by transfection of a series of deletion mutants into the rat hepatoma cell line mcardle 7777 , which makes both apo-b100 and apo-b48 , we have defined a minimum sequence of 26 nucleotides that is required for apo-b mrna editing .
C0103839
apo-b48
C0003593
apo-b