MersV1, PubMed, Corpus, bibRecord, 002A80

CC/GG contacts facilitate the B to A transition of DNA in solution.

Identifieur interne : 002A80 ( PubMed/Corpus ); précédent : 002A79; suivant : 002A81

CC/GG contacts facilitate the B to A transition of DNA in solution.

Auteurs : L E Minchenkova ; A K Schyolkina ; B K Chernov ; V I Ivanov

Source :

Journal of biomolecular structure & dynamics [ 0739-1102 ] ; 1986.

RBID : pubmed:2908426

English descriptors

KwdEn :
- Base Composition, Base Sequence, Clostridium perfringens (genetics), DNA, Escherichia coli (genetics), Hot Temperature, Mycobacterium (genetics), Nucleic Acid Conformation, Nucleic Acid Denaturation, Solutions, Thermodynamics.
MESH :
- chemical : DNA, Solutions.
- genetics : Clostridium perfringens, Escherichia coli, Mycobacterium.
- Base Composition, Base Sequence, Hot Temperature, Nucleic Acid Conformation, Nucleic Acid Denaturation, Thermodynamics.

Abstract

Self-complementary decadeoxynucleotides, CCGATATCGG, CCAGATCTGG, CCCTGCAGGG, GGGGGCCCCC, were designed and synthesized to estimate the A-philic free energy of CC/GG contacts. First, regions of temperature-stability of the double-stranded conformation were determined for each 10-mer. Then, circular dichroism spectra were recorded for the B-family forms at different temperatures, counter-ion concentrations and trifluoroethanol contents. A cooperative change typical of the B-A transition is observed in the CD spectra at a trifluoroethanol content specific for each duplex. The positions of half-transition points were functions not only of the nucleotide sequence but of the duplex length as well: the B to A transitions were hindered in these 10-mers in comparison with a lengthy DNA. The B-phility value was estimated to be 3 kcal/mol of 10-mer. The B-A transition point was shown to drop with an increase in the number of CC/GG contacts in a duplex. The designed 10-mers made it possible to estimate quantitatively the A-phility of CC/GG contact as compared with an average DNA: (FA-FB)CC = 0.2 Kcal/mol, (FA-FB)DNA = 0.7 Kcal/mol.

DOI: 10.1080/07391102.1986.10506362
PubMed: 2908426

Links to Exploration step

pubmed:2908426

Le document en format XML

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<author><name sortKey="Minchenkova, L E" sort="Minchenkova, L E" uniqKey="Minchenkova L" first="L E" last="Minchenkova">L E Minchenkova</name>
<affiliation><nlm:affiliation>Institute of Molecular Biology, USSR Academy of Sciences, Moscow.</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Schyolkina, A K" sort="Schyolkina, A K" uniqKey="Schyolkina A" first="A K" last="Schyolkina">A K Schyolkina</name>
</author>
<author><name sortKey="Chernov, B K" sort="Chernov, B K" uniqKey="Chernov B" first="B K" last="Chernov">B K Chernov</name>
</author>
<author><name sortKey="Ivanov, V I" sort="Ivanov, V I" uniqKey="Ivanov V" first="V I" last="Ivanov">V I Ivanov</name>
</author>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">CC/GG contacts facilitate the B to A transition of DNA in solution.</title>
<author><name sortKey="Minchenkova, L E" sort="Minchenkova, L E" uniqKey="Minchenkova L" first="L E" last="Minchenkova">L E Minchenkova</name>
<affiliation><nlm:affiliation>Institute of Molecular Biology, USSR Academy of Sciences, Moscow.</nlm:affiliation>
</affiliation>
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<author><name sortKey="Schyolkina, A K" sort="Schyolkina, A K" uniqKey="Schyolkina A" first="A K" last="Schyolkina">A K Schyolkina</name>
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<author><name sortKey="Chernov, B K" sort="Chernov, B K" uniqKey="Chernov B" first="B K" last="Chernov">B K Chernov</name>
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<author><name sortKey="Ivanov, V I" sort="Ivanov, V I" uniqKey="Ivanov V" first="V I" last="Ivanov">V I Ivanov</name>
</author>
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<series><title level="j">Journal of biomolecular structure & dynamics</title>
<idno type="ISSN">0739-1102</idno>
<imprint><date when="1986" type="published">1986</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Base Composition</term>
<term>Base Sequence</term>
<term>Clostridium perfringens (genetics)</term>
<term>DNA</term>
<term>Escherichia coli (genetics)</term>
<term>Hot Temperature</term>
<term>Mycobacterium (genetics)</term>
<term>Nucleic Acid Conformation</term>
<term>Nucleic Acid Denaturation</term>
<term>Solutions</term>
<term>Thermodynamics</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>DNA</term>
<term>Solutions</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Clostridium perfringens</term>
<term>Escherichia coli</term>
<term>Mycobacterium</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Base Composition</term>
<term>Base Sequence</term>
<term>Hot Temperature</term>
<term>Nucleic Acid Conformation</term>
<term>Nucleic Acid Denaturation</term>
<term>Thermodynamics</term>
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<front><div type="abstract" xml:lang="en">Self-complementary decadeoxynucleotides, CCGATATCGG, CCAGATCTGG, CCCTGCAGGG, GGGGGCCCCC, were designed and synthesized to estimate the A-philic free energy of CC/GG contacts. First, regions of temperature-stability of the double-stranded conformation were determined for each 10-mer. Then, circular dichroism spectra were recorded for the B-family forms at different temperatures, counter-ion concentrations and trifluoroethanol contents. A cooperative change typical of the B-A transition is observed in the CD spectra at a trifluoroethanol content specific for each duplex. The positions of half-transition points were functions not only of the nucleotide sequence but of the duplex length as well: the B to A transitions were hindered in these 10-mers in comparison with a lengthy DNA. The B-phility value was estimated to be 3 kcal/mol of 10-mer. The B-A transition point was shown to drop with an increase in the number of CC/GG contacts in a duplex. The designed 10-mers made it possible to estimate quantitatively the A-phility of CC/GG contact as compared with an average DNA: (FA-FB)CC = 0.2 Kcal/mol, (FA-FB)DNA = 0.7 Kcal/mol.</div>
</front>
</TEI>
<pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">2908426</PMID>
<DateCompleted><Year>1990</Year>
<Month>03</Month>
<Day>27</Day>
</DateCompleted>
<DateRevised><Year>2008</Year>
<Month>11</Month>
<Day>21</Day>
</DateRevised>
<Article PubModel="Print"><Journal><ISSN IssnType="Print">0739-1102</ISSN>
<JournalIssue CitedMedium="Print"><Volume>4</Volume>
<Issue>3</Issue>
<PubDate><Year>1986</Year>
<Month>Dec</Month>
</PubDate>
</JournalIssue>
<Title>Journal of biomolecular structure & dynamics</Title>
<ISOAbbreviation>J. Biomol. Struct. Dyn.</ISOAbbreviation>
</Journal>
<ArticleTitle>CC/GG contacts facilitate the B to A transition of DNA in solution.</ArticleTitle>
<Pagination><MedlinePgn>463-76</MedlinePgn>
</Pagination>
<Abstract><AbstractText>Self-complementary decadeoxynucleotides, CCGATATCGG, CCAGATCTGG, CCCTGCAGGG, GGGGGCCCCC, were designed and synthesized to estimate the A-philic free energy of CC/GG contacts. First, regions of temperature-stability of the double-stranded conformation were determined for each 10-mer. Then, circular dichroism spectra were recorded for the B-family forms at different temperatures, counter-ion concentrations and trifluoroethanol contents. A cooperative change typical of the B-A transition is observed in the CD spectra at a trifluoroethanol content specific for each duplex. The positions of half-transition points were functions not only of the nucleotide sequence but of the duplex length as well: the B to A transitions were hindered in these 10-mers in comparison with a lengthy DNA. The B-phility value was estimated to be 3 kcal/mol of 10-mer. The B-A transition point was shown to drop with an increase in the number of CC/GG contacts in a duplex. The designed 10-mers made it possible to estimate quantitatively the A-phility of CC/GG contact as compared with an average DNA: (FA-FB)CC = 0.2 Kcal/mol, (FA-FB)DNA = 0.7 Kcal/mol.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Minchenkova</LastName>
<ForeName>L E</ForeName>
<Initials>LE</Initials>
<AffiliationInfo><Affiliation>Institute of Molecular Biology, USSR Academy of Sciences, Moscow.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Schyolkina</LastName>
<ForeName>A K</ForeName>
<Initials>AK</Initials>
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<Author ValidYN="Y"><LastName>Chernov</LastName>
<ForeName>B K</ForeName>
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<Author ValidYN="Y"><LastName>Ivanov</LastName>
<ForeName>V I</ForeName>
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<Language>eng</Language>
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<MedlineJournalInfo><Country>England</Country>
<MedlineTA>J Biomol Struct Dyn</MedlineTA>
<NlmUniqueID>8404176</NlmUniqueID>
<ISSNLinking>0739-1102</ISSNLinking>
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<ChemicalList><Chemical><RegistryNumber>0</RegistryNumber>
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<CitationSubset>IM</CitationSubset>
<MeshHeadingList><MeshHeading><DescriptorName UI="D001482" MajorTopicYN="N">Base Composition</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D001483" MajorTopicYN="N">Base Sequence</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D003016" MajorTopicYN="N">Clostridium perfringens</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D004247" MajorTopicYN="Y">DNA</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D004926" MajorTopicYN="N">Escherichia coli</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D006358" MajorTopicYN="N">Hot Temperature</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009161" MajorTopicYN="N">Mycobacterium</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009690" MajorTopicYN="Y">Nucleic Acid Conformation</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D009691" MajorTopicYN="N">Nucleic Acid Denaturation</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D012996" MajorTopicYN="N">Solutions</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D013816" MajorTopicYN="N">Thermodynamics</DescriptorName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1986</Year>
<Month>12</Month>
<Day>1</Day>
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<PublicationStatus>ppublish</PublicationStatus>
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CC/GG contacts facilitate the B to A transition of DNA in solution.

CC/GG contacts facilitate the B to A transition of DNA in solution.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki