Stereochemical model for proflavin intercalation in A-DNA.

Abstract:

:Linked-atom molecular modelling was employed to determine the steric and torsional requirements for intercalation of proflavine into a double-stranded region of DNA compatible with adjacent regions of cohelical A-DNA. The optimum intercalation conformation is characterized by the dihedral angles xi and psi becoming trans, with all sugars retaining the characteristics C3'-endo pucker. This extended conformation results in virtually no helical unwinding, suggesting it may be an appropriate model for an intercalative intermediary in mutagenesis by virtue of its similarity to standard helical DNA.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Alden CJ,Arnott S

doi

10.1093/nar/4.11.3855

subject

Has Abstract

pub_date

1977-11-01 00:00:00

pages

3855-61

issue

11

eissn

0305-1048

issn

1362-4962

journal_volume

4

pub_type

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