<Tr> <Td> Mean propeller twist </Td> <Td> + 18 ° </Td> <Td> + 16 ° </Td> <Td> 0 ° </Td> </Tr> <Tr> <Td> Glycosyl angle </Td> <Td> anti </Td> <Td> anti </Td> <Td> pyrimidine: anti, purine: syn </Td> </Tr> <Tr> <Td> Nucleotide phosphate to phosphate distance </Td> <Td> 5.9 Å </Td> <Td> 7.0 Å </Td> <Td> C: 5.7 Å, G: 6.1 Å </Td> </Tr> <Tr> <Td> Sugar pucker </Td> <Td> C3' - endo </Td> <Td> C2' - endo </Td> <Td> C: C2' - endo, G: C3' - endo </Td> </Tr>

Structure of dna a b and z forms