RES 1b:x-dglc-HEX-x:x 2s:amino 3r:r1 4b:b-dglc-HEX-1:5 5s:n-acetyl LIN 1:1d(2+1)2n 2:1o(4+1)3n 3:3n(4+1)4d 4:4d(2+1)5n REP REP1:6o(4+1)6d=-1--1 RES 6b:b-dglc-HEX-1:5 7s:n-acetyl LIN 5:6d(2+1)7n