Literature DB >> 7063416

Conformational transitions of poly(dA-dC).poly(dG-dT) induced by high salt or in ethanolic solution.

C Zimmer, S Tymen, C Marck, W Guschlbauer.   

Abstract

Poly(dA-dC).poly(dG-dT) was studied by circular dichroism in the presence of high CsCl concentrations and in ethanolic solutions. This alternating purine-pyrimidine duplex may undergo two conformational transitions from a B-type to a novel structure and subsequently into an A-form. Cs+ ions or increasing ethanol concentrations induced a change of the B-type CD spectrum and an inversion of the long wavelength CD band. Lowering the temperature below 0 C or addition of small amounts of Ca++ ions were particularly potent in producing a large negative CD band. A modified B-type structure or a conversion into a left-handed Z-form is considered for this conformational transition.

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Year:  1982        PMID： 7063416      PMCID： PMC326222          DOI： 10.1093/nar/10.3.1081

Source DB:  PubMed          Journal:  Nucleic Acids Res        ISSN： 0305-1048            Impact factor:   16.971


  29 in total

1.  Circular dichroism spectra of poly[d(AC):d(GT)], poly[r(AC):r(GU)], and hybrids poly[d(AC):r(GU)] and poly[r(AC):d(GT)] in the presence of ethanol.

Authors:  D M Gray; R L Ratliff
Journal:  Biopolymers       Date:  1975-03       Impact factor: 2.505

2.  The nature of the B-A transition of DNA in solution.

Authors:  G Malenkov; L Minchenkova; E Minyat; A Schyolkina; V Ivanov
Journal:  FEBS Lett       Date:  1975-03-01       Impact factor: 4.124

3.  Dependence of B-A conformational change in DNA on base composition.

Authors:  J Pilet; J Brahms
Journal:  Nat New Biol       Date:  1972-03-29

4.  The B to A transition of DNA in solution.

Authors:  V I Ivanov; L E Minchenkova; E E Minyat; M D Frank-Kamenetskii; A K Schyolkina
Journal:  J Mol Biol       Date:  1974-08-25       Impact factor: 5.469

5.  Structure and circular dichroism of DNA in concentrated polymer solutions.

Authors:  C F Jordan; L S Lerman; J H Venable
Journal:  Nat New Biol       Date:  1972-03-22

6.  Different conformations of double-stranded nucleic acid in solution as revealed by circular dichroism.

Authors:  V I Ivanov; L E Minchenkova; A K Schyolkina; A I Poletayev
Journal:  Biopolymers       Date:  1973       Impact factor: 2.505

7.  Salt-induced co-operative conformational change of a synthetic DNA: equilibrium and kinetic studies with poly (dG-dC).

Authors:  F M Pohl; T M Jovin
Journal:  J Mol Biol       Date:  1972-06-28       Impact factor: 5.469

8.  A compact form of double-stranded DNA in solution.

Authors:  Y M Evdokimov; A L Platonov; A S Tikhonenko; Y M Varshavsky
Journal:  FEBS Lett       Date:  1972-06-15       Impact factor: 4.124

9.  A comparative X-ray diffraction and circular dichroism study of DNA compact particles formed in water-salt solutions, containing poly(ethylene glycol).

Authors:  Y M Evdokimov; T L Pyatigorskaya; O F Polyvtsev; N M Akimenko; V A Kadykov; D Y Tsvankin; Y M Varshavsky
Journal:  Nucleic Acids Res       Date:  1976-09       Impact factor: 16.971

10.  A transition to a compact form of DNA in polymer solutions.

Authors:  L S Lerman
Journal:  Proc Natl Acad Sci U S A       Date:  1971-08       Impact factor: 11.205
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  22 in total

1.  Vacuum ultraviolet circular dichroism as an indicator of helical handedness in nucleic acids.

Authors:  A L Williams; C Cheong; I Tinoco; L B Clark
Journal:  Nucleic Acids Res       Date:  1986-08-26       Impact factor: 16.971

2.  Vacuum UV circular dichroism is diagnostic for the left-handed Z form of poly [d(A-C).d(G-T)] and other polydeoxynucleotides.

Authors:  J H Riazance; W C Johnson; L P McIntosh; T M Jovin
Journal:  Nucleic Acids Res       Date:  1987-09-25       Impact factor: 16.971

3.  Intrinsic conformational properties of deoxyribonucleosides: implicated role for cytosine in the equilibrium among the A, B, and Z forms of DNA.

Authors:  N Foloppe; A D MacKerell
Journal:  Biophys J       Date:  1999-06       Impact factor: 4.033

4.  Conformation of the synthetic DNA poly(amino2dA-dT) duplex in high-salt and aqueous alcohol solutions.

Authors:  M Vorlícková; J Sági; A Szabolcs; A Szemzö; L Otvös; J Kypr
Journal:  Nucleic Acids Res       Date:  1988-01-11       Impact factor: 16.971

5.  Sequence homologies in the protamine gene family of rainbow trout.

Authors:  J M Aiken; D McKenzie; H Z Zhao; J C States; G H Dixon
Journal:  Nucleic Acids Res       Date:  1983-07-25       Impact factor: 16.971

6.  Right-handed and left-handed helices of poly(dA-dC) X (dG-dT).

Authors:  J A Taboury; E Taillandier
Journal:  Nucleic Acids Res       Date:  1985-06-25       Impact factor: 16.971

7.  Daunomycin inhibits the B leads to Z transition in poly d(G-C).

Authors:  J B Chaires
Journal:  Nucleic Acids Res       Date:  1983-12-10       Impact factor: 16.971

8.  DNA-binding characterization of a novel anti-tumour benzo[a]phenazine derivative NC-182: spectroscopic and viscometric studies.

Authors:  M Tarui; M Doi; T Ishida; M Inoue; S Nakaike; K Kitamura
Journal:  Biochem J       Date:  1994-11-15       Impact factor: 3.857

9.  The evolutionarily conserved repetitive sequence d(TG.AC)n promotes reciprocal exchange and generates unusual recombinant tetrads during yeast meiosis.

Authors:  D Treco; N Arnheim
Journal:  Mol Cell Biol       Date:  1986-11       Impact factor: 4.272

10.  Intercalative and nonintercalative binding of large cationic porphyrin ligands to polynucleotides.

Authors:  M J Carvlin; E Mark; R Fiel; J C Howard
Journal:  Nucleic Acids Res       Date:  1983-09-10       Impact factor: 16.971
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