Crystal packing and structure of B-DNA

L. V. Malinina, S. V. Ivaninskii

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The relationships between the packing mode and fragment structure were analyzed with B-DNA fragments whose crystal structures are available from the Nucleic Acid Database (NDB). Most fragments were dodecamers with terminal CG. The features of their packing and a possibility for decamers and octamers being packed similarly are concerned. The requirements for the mean helical twist were assumed on the basis of idealized packing models. These models were compared with real crystals of decamers and of octamer CGCTAGCG. The packing mode was shown to have little effect on the mean helical twist in B-DNA fragments, suggesting that local variations in twist immediately compensate for each other.

Original languageEnglish (US)
Pages (from-to)512-519
Number of pages8
JournalMolekulyarnaya Biologiya
Volume33
Issue number3
StatePublished - May 1999

Keywords

  • B-DNA
  • Crystal packing
  • Helical twist

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