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. 2008 Nov 17;105(47):18296–18301. doi: 10.1073/pnas.0803279105

Table 1.

Nucleotide and tetranucleotide frequency in SELEX output

(Tetra)nucleotide KH3 + 4 KH2 + 3 KH1 + 2
A 11.9% 8.6% 7.4%
C 18.0% 16.3% 18.1%
G 18.4% 19.6% 20.7%
T 51.7% 55.5% 53.8%
TTGT 42 (5.14%) 37 (5.56%) 45 (6.02%)
TCGT 33 (4.04%) 34 (5.11%) 8 (1.07%)
GTGT 15 (1.84%) 9 (1.35%) 25 (3.34%)
GTGC 2 (0.24%) 2 (0.30%) 8 (1.07%)
TGTG 10 (1.22%) 9 (1.35%) 23 (3.07%)
All tetrads 817 (0.39% 666 (0.39% 748 (0.39%
expected) expected) expected)