Literature DB >> 23345735

Novel Cholesteric Phase in Dispersions of Nucleic Acids due to Polymeric Chelate Bridges.

V L Golo1, E I Kats, Y S Volkov, V I Salyanov, Y M Yevdokimov.   

Abstract

Physics, Moscow, RussiaWe consider cholesteric liquid-crystalline DNA dispersions, and show thatpolymeric (Dau-Cu) complexes, the so-called bridges, between pairs of DNA molecules may generate a super liquid-crystalline structure (BR-phase), charachterized by a soliton lattice of the spatial distribution of theorder parameter. The BR-phase could have a layered spatial structure andan abnormal optical activity that could have a bearing upon the intenseCD-band observed in DNA-dispersions.

Keywords:  DNA; dichroism; liquid crystal

Year:  2001        PMID： 23345735      PMCID： PMC3456398          DOI： 10.1023/A:1011841305329

Source DB:  PubMed          Journal:  J Biol Phys        ISSN： 0092-0606            Impact factor:   1.365


  6 in total

1.  Adjustable 'cross-linking' of neighboring DNA molecules in liquid-crystalline dispersions through (daunomycin-copper) polymeric chelate complexes.

Authors:  Y M Yevdokimov; V I Salyanov; F Spener; M Palumbo
Journal:  Int J Biol Macromol       Date:  1996-12       Impact factor: 6.953

2.  Stereochemistry of intercalation: interaction of daunomycin with DNA.

Authors:  W J Pigram; W Fuller; L D Hamilton
Journal:  Nat New Biol       Date:  1972-01-05

3.  [Spectrophotometric study of the DNA-daunorubicin complex].

Authors:  V Barthelemy-Clavey; J C Maurizot; P J Sicard
Journal:  Biochimie       Date:  1973       Impact factor: 4.079

4.  The effect of physiological levels of divalent metal ions on the interaction of daunomycin with DNA: evidence of a ternary daunomycin-Cu2+-DNA complex.

Authors:  D R Phillips; G A Carlyle
Journal:  Biochem Pharmacol       Date:  1981-07-15       Impact factor: 5.858

5.  Daunomycin inverts the long-range chirality of DNA condensed states.

Authors:  C Bustamante; B Samorì; E Builes
Journal:  Biochemistry       Date:  1991-06-11       Impact factor: 3.162

6.  Liquid-crystalline structure of nucleic acids: effect of antracycline drugs and copper ions.

Authors:  Y M Yevdokimov; V I Salyanov; L V Buligin; A T Dembo; E Gedig; F Spener; M Palumbo
Journal:  J Biomol Struct Dyn       Date:  1997-08
  6 in total

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