About: Thermal stability and energetics of 15-mer DNA duplex interstrand crosslinked by trans-diamminedichloroplatinum(II)     Goto   Sponge   NotDistinct   Permalink

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  • The effect of the location of the interstrand cross-link formed by trans-diamminedichloroplatinum(H) (transplatin) on the thermal stability and energetics of 15-mer DNA duplex has been investigated. The duplex containing single, site-specific cross-link, thermodynamically equivalent model structures (hairpins) and nonmodified duplexes were characterized by differential scanning calorimetry, temperature-dependent uv absorption, and circular dichroism. The results demonstrate that the formation of the interstrand cross-link of transplatin does not affect pronouncedly thermodynamic stability of DNA: the cross-link induces no marked changes not only in enthalpy, but also in %22reduced%22 (concentration independent) monomolecular transition entropy. These results are consistent with the previous observations that interstrand cross-links of transplatin structurally perturb DNA only to a relatively small extent.
  • The effect of the location of the interstrand cross-link formed by trans-diamminedichloroplatinum(H) (transplatin) on the thermal stability and energetics of 15-mer DNA duplex has been investigated. The duplex containing single, site-specific cross-link, thermodynamically equivalent model structures (hairpins) and nonmodified duplexes were characterized by differential scanning calorimetry, temperature-dependent uv absorption, and circular dichroism. The results demonstrate that the formation of the interstrand cross-link of transplatin does not affect pronouncedly thermodynamic stability of DNA: the cross-link induces no marked changes not only in enthalpy, but also in %22reduced%22 (concentration independent) monomolecular transition entropy. These results are consistent with the previous observations that interstrand cross-links of transplatin structurally perturb DNA only to a relatively small extent. (en)
  • Byl studován vliv polohy meziřetězcového můstku vytvořeného trans-dimmindichloroplatnatým komplexem (transplatinou) na tepelnou a termodynamickou stabilitu DNA pomocí diferenční skenovací kalorimetrie. Bylo zjištěno, že poloha můstku v duplexu DNA moduluje kooperativitu procesu tání duplexu a následně také tepelnou stabilitu. (cs)
Title
  • Thermal stability and energetics of 15-mer DNA duplex interstrand crosslinked by trans-diamminedichloroplatinum(II)
  • Tepelná stabilita a energetika duplexu DNA 15 párů bází dlouhého obsahujícího meziřetězcový můstek trans-dimmindichloroplatnatého komplexu (cs)
  • Thermal stability and energetics of 15-mer DNA duplex interstrand crosslinked by trans-diamminedichloroplatinum(II) (en)
skos:prefLabel
  • Thermal stability and energetics of 15-mer DNA duplex interstrand crosslinked by trans-diamminedichloroplatinum(II)
  • Tepelná stabilita a energetika duplexu DNA 15 párů bází dlouhého obsahujícího meziřetězcový můstek trans-dimmindichloroplatnatého komplexu (cs)
  • Thermal stability and energetics of 15-mer DNA duplex interstrand crosslinked by trans-diamminedichloroplatinum(II) (en)
skos:notation
  • RIV/68081707:_____/05:00001323!RIV06-AV0-68081707
http://linked.open.../vavai/riv/strany
  • 222;229
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA305/02/1552), P(GP202/01/D110), P(LZ1K03010), Z(AV0Z50040507)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 546689
http://linked.open...ai/riv/idVysledku
  • RIV/68081707:_____/05:00001323
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • DNA; interstrand cross-link; transplatin (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [379BD88B95B3]
http://linked.open...i/riv/nazevZdroje
  • Biopolymers
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 77
http://linked.open...iv/tvurceVysledku
  • Brabec, Viktor
  • Hofr, Ctirad
http://linked.open...n/vavai/riv/zamer
issn
  • 0006-3525
number of pages
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