Model Number,Pair Number,Pair Name,Leontis / Westhof Classification,Saenger Classification 1,1,B_A1:DT6_C,1,20 1,3,B_A3:DT4_C,1,20 1,2,B_C2:DG5_C,1,19 1,4,B_U4:DA3_C,1,20 1,5,b_C5:DG2_C,1,19 1,6,b_G6:DC1_C,1,19