C5A(R)
C4A(R)
C2A(S)
O
O6A
C6A(R)
C3A(R)
O
H
O4A
N
H
N5A
C7A(R)
C8A(R)
C9A
O
H
O9A
O
H
O8A
O
H
O7A
C1A
O
H
OBA
O
OAA
O
O1A
O
O2A
N
N1
C2
N
N3
C4
C5
C6
C3'(S)
C2'(R)
C1'(R)
O
O4'
C4'(R)
P
PA(R)
O
O5'
C5'
O
H
O3'
O
H
O2'
N
H
2
N4
O
O2
O
H
O3A
C10
O
O10
C11
F
F3A