Comparison of different types of DNA
(Differences between A, B, C, D and Z DNA)
Features
|
A-DNA
|
B-DNA
|
C-DNA
|
D-DNA
|
Z-DNA
|
Handedness of double helix
|
Right handed
|
Right handed
|
Right handed
|
Right handed
|
Left handed
|
Base pair per full turn of the
helix
|
11
|
10
|
9.33
|
8
|
12
|
Diameter of helix
|
23 ร
|
19 ร
|
19 ร
|
-
|
18 ร
|
Tilt of nitrogen base pairs (g)
|
20.2O
|
6.3 O
|
-7.8 O
|
-16.7 O
|
7 O
|
Axial rise (h)
|
2.56 ร
|
3.37 ร
|
3.32 ร
|
3.03 ร
|
3.7 ร
|