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. 2002 Sep 15;30(18):4061–4067. doi: 10.1093/nar/gkf515

Table 2. Helical parameters: base pair parameters.

Base pair Inclination (°) Propeller (°) x-displacement (Å)
C/G 6.5 –5.6 –4.1
A/T 6.8 –6.6 –2.7
T/A 6.1 –8.7 –2.0
G/C 4.0 –8.4 –2.6
G/C 2.9 –11.3 –3.2
G/C 5.2 –7.4 –3.2
C/G 6.2 –7.2 –3.6
C/G 6.8 –12.5 –3.0
C/G 6.2 –8.9 –2.7
A/T 6.0 –7.9 –2.6
T/A 5.3 –2.0 –3.4
G/C 5.8 7.1 –4.9
Averagea 5.6 –8.1 –2.9
Helix type .B 10.B 1.A

Parameters were calculated with Freehelix (4) and 3DNA (5).

aAveraged values do not include the terminal base pairs.