Friday, May 30, 2014

Comparison of different types of DNA

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 Å
19 Å
19 Å
-
18 Å
Tilt of nitrogen base pairs (g)
20.2O
6.3 O
-7.8 O
-16.7 O
7 O
Axial rise (h)
2.56 Å
3.37 Å
3.32 Å
3.03 Å
3.7 Å


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