Chirality as a primary switch of hierarchical levels in molecular biological systems
Identifieur interne : 002155 ( Main/Exploration ); précédent : 002154; suivant : 002156Chirality as a primary switch of hierarchical levels in molecular biological systems
Auteurs : V. A. Tverdislov [Russie]Source :
- Biophysics [ 0006-3509 ] ; 2013-01-01.
Descripteurs français
- Wicri :
- topic : ADN.
English descriptors
Abstract
Abstract: A synergetic law, being of common physicochemical and biological sense, is formulated: any evolving system that possesses an excess of free energy and elements with chiral asymmetry, while being within one hierarchical level, is able to change the type of symmetry in the process of self-organization increasing its complexity but preserving the sign of prevailing chirality (left — L or right — D twist). The same system tends to form spontaneously a sequence of hierarchical levels with alternating chirality signs of de novo formed structures and with an increase of the structures’ relative scales. In living systems, the hierarchy of conjugated levels of macromolecular structures that begins from the “lowest” asymmetric carbon serves as an anti-entropic factor as well as the structural basis of “selected mechanical degrees of freedom” in molecular machines. During transition of DNA to a higher level of structural and functional organization, regular alterations of the chirality sign D-L-D-L and L-D-L-D for DNA and protein structures, respectively, are observed. Sign-alternating chiral hierarchies of DNA and protein structure, in turn, form a complementary conjugated chiral pair that represents an achiral invariant that “consummates” the molecular-biological block of living systems. The ability of a carbon atom to form chiral compounds is an important factor that determined the carbon basis of living systems on the Earth as well as their development though a series of chiral bifurcations. The hierarchy of macromolecular structures demarcated by the chirality sign predetermined the possibility of the “block” character of biological evolution.
Url:
DOI: 10.1134/S0006350913010156
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000227
- to stream Istex, to step Curation: 000227
- to stream Istex, to step Checkpoint: 000293
- to stream Main, to step Merge: 002179
- to stream Main, to step Curation: 002155
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Chirality as a primary switch of hierarchical levels in molecular biological systems</title>
<author><name sortKey="Tverdislov, V A" sort="Tverdislov, V A" uniqKey="Tverdislov V" first="V. A." last="Tverdislov">V. A. Tverdislov</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:DDF74B96023D6AFD7FD0F2F4C15D2EA8DC5FD722</idno>
<date when="2013" year="2013">2013</date>
<idno type="doi">10.1134/S0006350913010156</idno>
<idno type="url">https://api.istex.fr/ark:/67375/VQC-WK6F4TW5-Q/fulltext.pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000227</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000227</idno>
<idno type="wicri:Area/Istex/Curation">000227</idno>
<idno type="wicri:Area/Istex/Checkpoint">000293</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000293</idno>
<idno type="wicri:doubleKey">0006-3509:2013:Tverdislov V:chirality:as:a</idno>
<idno type="wicri:Area/Main/Merge">002179</idno>
<idno type="wicri:Area/Main/Curation">002155</idno>
<idno type="wicri:Area/Main/Exploration">002155</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Chirality as a primary switch of hierarchical levels in molecular biological systems</title>
<author><name sortKey="Tverdislov, V A" sort="Tverdislov, V A" uniqKey="Tverdislov V" first="V. A." last="Tverdislov">V. A. Tverdislov</name>
<affiliation wicri:level="4"><country xml:lang="fr">Russie</country>
<wicri:regionArea>Chair of Biophysics, Physical Faculty, Moscow State University, 119991, Moscow</wicri:regionArea>
<placeName><settlement type="city">Moscou</settlement>
<region>District fédéral central</region>
</placeName>
<orgName type="university">Université d'État de Moscou</orgName>
</affiliation>
<affiliation wicri:level="1"><country wicri:rule="url">Russie</country>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Biophysics</title>
<title level="j" type="abbrev">BIOPHYSICS</title>
<idno type="ISSN">0006-3509</idno>
<idno type="eISSN">1555-6654</idno>
<imprint><publisher>SP MAIK Nauka/Interperiodica</publisher>
<pubPlace>Dordrecht</pubPlace>
<date type="published" when="2013-01-01">2013-01-01</date>
<biblScope unit="volume">58</biblScope>
<biblScope unit="issue">1</biblScope>
<biblScope unit="page" from="128">128</biblScope>
<biblScope unit="page" to="132">132</biblScope>
</imprint>
<idno type="ISSN">0006-3509</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0006-3509</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>DNA</term>
<term>chirality</term>
<term>fractals</term>
<term>hierarchy</term>
<term>proteins</term>
<term>symmetries</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>ADN</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Abstract: A synergetic law, being of common physicochemical and biological sense, is formulated: any evolving system that possesses an excess of free energy and elements with chiral asymmetry, while being within one hierarchical level, is able to change the type of symmetry in the process of self-organization increasing its complexity but preserving the sign of prevailing chirality (left — L or right — D twist). The same system tends to form spontaneously a sequence of hierarchical levels with alternating chirality signs of de novo formed structures and with an increase of the structures’ relative scales. In living systems, the hierarchy of conjugated levels of macromolecular structures that begins from the “lowest” asymmetric carbon serves as an anti-entropic factor as well as the structural basis of “selected mechanical degrees of freedom” in molecular machines. During transition of DNA to a higher level of structural and functional organization, regular alterations of the chirality sign D-L-D-L and L-D-L-D for DNA and protein structures, respectively, are observed. Sign-alternating chiral hierarchies of DNA and protein structure, in turn, form a complementary conjugated chiral pair that represents an achiral invariant that “consummates” the molecular-biological block of living systems. The ability of a carbon atom to form chiral compounds is an important factor that determined the carbon basis of living systems on the Earth as well as their development though a series of chiral bifurcations. The hierarchy of macromolecular structures demarcated by the chirality sign predetermined the possibility of the “block” character of biological evolution.</div>
</front>
</TEI>
<affiliations><list><country><li>Russie</li>
</country>
<region><li>District fédéral central</li>
</region>
<settlement><li>Moscou</li>
</settlement>
<orgName><li>Université d'État de Moscou</li>
</orgName>
</list>
<tree><country name="Russie"><region name="District fédéral central"><name sortKey="Tverdislov, V A" sort="Tverdislov, V A" uniqKey="Tverdislov V" first="V. A." last="Tverdislov">V. A. Tverdislov</name>
</region>
<name sortKey="Tverdislov, V A" sort="Tverdislov, V A" uniqKey="Tverdislov V" first="V. A." last="Tverdislov">V. A. Tverdislov</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/MersV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 002155 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 002155 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Sante |area= MersV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:DDF74B96023D6AFD7FD0F2F4C15D2EA8DC5FD722 |texte= Chirality as a primary switch of hierarchical levels in molecular biological systems }}
This area was generated with Dilib version V0.6.33. |