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Table 1 Non-redundant features of the fragments selected from the database.

From: Molecular models for intrastrand DNA G-quadruplexes

syn/anti a/p loop length pairing counts
a s a a 4 111 13
a a a p 3 000 10
s a a a 3 200 7
s s a a 3 002 6
s a a p 3 200 6
a a a p 1 000 6
a s a a 4 020 5
s s a a 3 220 2
a s a a 3 020 2
a a a p 4 111 2
s s a a 4 111 1
s a s a 3 111 1
s a a p 2 200 1
s a a p 1 200 1
s a a a 4 200 1
s a a a 4 111 1
a s a a 4 202 1
a s a a 3 202 1
a a a p 2 000 1
  1. syn/anti indicates the conformation at the glycosidic bond of the first three G's, a/p indicates antiparallel/parallel arrangement, 0, 1 and 2 pairings are described in the text and the number of fragments different in sequence or conformation is given in the column "counts".