Interaction of monogalactosyldiacylglycerol with cytochrome b₆f complex in surface films.
Identifieur interne : 002A13 ( Main/Exploration ); précédent : 002A12; suivant : 002A14Interaction of monogalactosyldiacylglycerol with cytochrome b₆f complex in surface films.
Auteurs : G As Georgiev [Bulgarie] ; Sl Ivanova ; A. Jordanova ; A. Tsanova ; V. Getov ; M. Dimitrov ; Z. LalchevSource :
- Biochemical and biophysical research communications [ 1090-2104 ] ; 2012.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Cytochrome b6f complex, Galactolipides, Galactose, Thylacoïdes.
- enzymologie : Populus.
- Liaison hydrogène, Propriétés de surface.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Cytochrome b6f Complex, Galactolipids, Galactose.
- chemistry : Thylakoids.
- enzymology : Populus.
- Hydrogen Bonding, Surface Properties.
Abstract
The interaction of monogalactosyldiacylglycerol (MGDG) with cytochrome b(6)f complex (cyt b(6)f), a major component of the photosynthetic apparatus, was studied in Langmuir monolayers during compression/expansion cycling and at constant surface pressure mode. The surface pressure/area isotherms of the mixed films were analyzed in terms of surface compressional modulus and two-dimensional virial equation of state. The morphology and the surface potential of the monolayers were monitored by Brewster angle microscopy and vibrating plate sensor respectively. Our results suggested that there is a specific interaction between MGDG and cyt b(6)f which resulted in depletion of lipid molecules from the interface. The current work sheds light on the still unclear question how b(6)f complex gets in touch with the major compound of the thylakoid membranes, the non-charged lipid MGDG. The interaction occured even at very low sub-nanomolar concentration of the complex. This effect most probably could be attributed to hydrogen bonding between the galactose headgroup of the lipid and the protein moiety of cyt b(6)f.
DOI: 10.1016/j.bbrc.2012.02.067
PubMed: 22374069
Affiliations:
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Ohridski University of Sofia, 8 Dragan Tsankov Blvd., 1164 Sofia</wicri:regionArea><placeName><settlement type="city">Sofia</settlement><region nuts="2">Sofia-ville (oblast)</region></placeName></affiliation></author><author><name sortKey="Ivanova, Sl" sort="Ivanova, Sl" uniqKey="Ivanova S" first="Sl" last="Ivanova">Sl Ivanova</name></author><author><name sortKey="Jordanova, A" sort="Jordanova, A" uniqKey="Jordanova A" first="A" last="Jordanova">A. Jordanova</name></author><author><name sortKey="Tsanova, A" sort="Tsanova, A" uniqKey="Tsanova A" first="A" last="Tsanova">A. Tsanova</name></author><author><name sortKey="Getov, V" sort="Getov, V" uniqKey="Getov V" first="V" last="Getov">V. Getov</name></author><author><name sortKey="Dimitrov, M" sort="Dimitrov, M" uniqKey="Dimitrov M" first="M" last="Dimitrov">M. Dimitrov</name></author><author><name sortKey="Lalchev, Z" sort="Lalchev, Z" uniqKey="Lalchev Z" first="Z" last="Lalchev">Z. Lalchev</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22374069</idno><idno type="pmid">22374069</idno><idno type="doi">10.1016/j.bbrc.2012.02.067</idno><idno type="wicri:Area/Main/Corpus">002B21</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002B21</idno><idno type="wicri:Area/Main/Curation">002B21</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002B21</idno><idno type="wicri:Area/Main/Exploration">002B21</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Interaction of monogalactosyldiacylglycerol with cytochrome b₆f complex in surface films.</title><author><name sortKey="Georgiev, G As" sort="Georgiev, G As" uniqKey="Georgiev G" first="G As" last="Georgiev">G As Georgiev</name><affiliation wicri:level="1"><nlm:affiliation>Faculty of Biology, St. Kl. Ohridski University of Sofia, 8 Dragan Tsankov Blvd., 1164 Sofia, Bulgaria. ggeorg@biofac.uni-sofia.bg</nlm:affiliation><country xml:lang="fr">Bulgarie</country><wicri:regionArea>Faculty of Biology, St. Kl. Ohridski University of Sofia, 8 Dragan Tsankov Blvd., 1164 Sofia</wicri:regionArea><placeName><settlement type="city">Sofia</settlement><region nuts="2">Sofia-ville (oblast)</region></placeName></affiliation></author><author><name sortKey="Ivanova, Sl" sort="Ivanova, Sl" uniqKey="Ivanova S" first="Sl" last="Ivanova">Sl Ivanova</name></author><author><name sortKey="Jordanova, A" sort="Jordanova, A" uniqKey="Jordanova A" first="A" last="Jordanova">A. Jordanova</name></author><author><name sortKey="Tsanova, A" sort="Tsanova, A" uniqKey="Tsanova A" first="A" last="Tsanova">A. Tsanova</name></author><author><name sortKey="Getov, V" sort="Getov, V" uniqKey="Getov V" first="V" last="Getov">V. Getov</name></author><author><name sortKey="Dimitrov, M" sort="Dimitrov, M" uniqKey="Dimitrov M" first="M" last="Dimitrov">M. Dimitrov</name></author><author><name sortKey="Lalchev, Z" sort="Lalchev, Z" uniqKey="Lalchev Z" first="Z" last="Lalchev">Z. Lalchev</name></author></analytic><series><title level="j">Biochemical and biophysical research communications</title><idno type="eISSN">1090-2104</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cytochrome b6f Complex (chemistry)</term><term>Galactolipids (chemistry)</term><term>Galactose (chemistry)</term><term>Hydrogen Bonding (MeSH)</term><term>Populus (enzymology)</term><term>Surface Properties (MeSH)</term><term>Thylakoids (chemistry)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Cytochrome b6f complex (composition chimique)</term><term>Galactolipides (composition chimique)</term><term>Galactose (composition chimique)</term><term>Liaison hydrogène (MeSH)</term><term>Populus (enzymologie)</term><term>Propriétés de surface (MeSH)</term><term>Thylacoïdes (composition chimique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Cytochrome b6f Complex</term><term>Galactolipids</term><term>Galactose</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Thylakoids</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Cytochrome b6f complex</term><term>Galactolipides</term><term>Galactose</term><term>Thylacoïdes</term></keywords><keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hydrogen Bonding</term><term>Surface Properties</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Liaison hydrogène</term><term>Propriétés de surface</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The interaction of monogalactosyldiacylglycerol (MGDG) with cytochrome b(6)f complex (cyt b(6)f), a major component of the photosynthetic apparatus, was studied in Langmuir monolayers during compression/expansion cycling and at constant surface pressure mode. The surface pressure/area isotherms of the mixed films were analyzed in terms of surface compressional modulus and two-dimensional virial equation of state. The morphology and the surface potential of the monolayers were monitored by Brewster angle microscopy and vibrating plate sensor respectively. Our results suggested that there is a specific interaction between MGDG and cyt b(6)f which resulted in depletion of lipid molecules from the interface. The current work sheds light on the still unclear question how b(6)f complex gets in touch with the major compound of the thylakoid membranes, the non-charged lipid MGDG. The interaction occured even at very low sub-nanomolar concentration of the complex. This effect most probably could be attributed to hydrogen bonding between the galactose headgroup of the lipid and the protein moiety of cyt b(6)f.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22374069</PMID><DateCompleted><Year>2012</Year><Month>05</Month><Day>11</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1090-2104</ISSN><JournalIssue CitedMedium="Internet"><Volume>419</Volume><Issue>4</Issue><PubDate><Year>2012</Year><Month>Mar</Month><Day>23</Day></PubDate></JournalIssue><Title>Biochemical and biophysical research communications</Title><ISOAbbreviation>Biochem Biophys Res Commun</ISOAbbreviation></Journal><ArticleTitle>Interaction of monogalactosyldiacylglycerol with cytochrome b₆f complex in surface films.</ArticleTitle><Pagination><MedlinePgn>648-51</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.bbrc.2012.02.067</ELocationID><Abstract><AbstractText>The interaction of monogalactosyldiacylglycerol (MGDG) with cytochrome b(6)f complex (cyt b(6)f), a major component of the photosynthetic apparatus, was studied in Langmuir monolayers during compression/expansion cycling and at constant surface pressure mode. The surface pressure/area isotherms of the mixed films were analyzed in terms of surface compressional modulus and two-dimensional virial equation of state. The morphology and the surface potential of the monolayers were monitored by Brewster angle microscopy and vibrating plate sensor respectively. Our results suggested that there is a specific interaction between MGDG and cyt b(6)f which resulted in depletion of lipid molecules from the interface. The current work sheds light on the still unclear question how b(6)f complex gets in touch with the major compound of the thylakoid membranes, the non-charged lipid MGDG. The interaction occured even at very low sub-nanomolar concentration of the complex. This effect most probably could be attributed to hydrogen bonding between the galactose headgroup of the lipid and the protein moiety of cyt b(6)f.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Georgiev</LastName><ForeName>G As</ForeName><Initials>GA</Initials><AffiliationInfo><Affiliation>Faculty of Biology, St. Kl. Ohridski University of Sofia, 8 Dragan Tsankov Blvd., 1164 Sofia, Bulgaria. ggeorg@biofac.uni-sofia.bg</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ivanova</LastName><ForeName>Sl</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Jordanova</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Tsanova</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Getov</LastName><ForeName>V</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Dimitrov</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Lalchev</LastName><ForeName>Z</ForeName><Initials>Z</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>02</Month><Day>20</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Biochem Biophys Res Commun</MedlineTA><NlmUniqueID>0372516</NlmUniqueID><ISSNLinking>0006-291X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D038983">Galactolipids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="C009909">monogalactosyldiacylglycerol</NameOfSubstance></Chemical><Chemical><RegistryNumber>9035-40-9</RegistryNumber><NameOfSubstance UI="D045346">Cytochrome b6f Complex</NameOfSubstance></Chemical><Chemical><RegistryNumber>X2RN3Q8DNE</RegistryNumber><NameOfSubstance UI="D005690">Galactose</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D045346" MajorTopicYN="N">Cytochrome b6f Complex</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038983" MajorTopicYN="N">Galactolipids</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005690" MajorTopicYN="N">Galactose</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006860" MajorTopicYN="N">Hydrogen Bonding</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013499" MajorTopicYN="N">Surface Properties</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020524" MajorTopicYN="N">Thylakoids</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>02</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>02</Month><Day>12</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>3</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>3</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>5</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22374069</ArticleId><ArticleId IdType="pii">S0006-291X(12)00300-2</ArticleId><ArticleId IdType="doi">10.1016/j.bbrc.2012.02.067</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Bulgarie</li></country><region><li>Sofia-ville (oblast)</li></region><settlement><li>Sofia</li></settlement></list><tree><noCountry><name sortKey="Dimitrov, M" sort="Dimitrov, M" uniqKey="Dimitrov M" first="M" last="Dimitrov">M. Dimitrov</name><name sortKey="Getov, V" sort="Getov, V" uniqKey="Getov V" first="V" last="Getov">V. Getov</name><name sortKey="Ivanova, Sl" sort="Ivanova, Sl" uniqKey="Ivanova S" first="Sl" last="Ivanova">Sl Ivanova</name><name sortKey="Jordanova, A" sort="Jordanova, A" uniqKey="Jordanova A" first="A" last="Jordanova">A. Jordanova</name><name sortKey="Lalchev, Z" sort="Lalchev, Z" uniqKey="Lalchev Z" first="Z" last="Lalchev">Z. Lalchev</name><name sortKey="Tsanova, A" sort="Tsanova, A" uniqKey="Tsanova A" first="A" last="Tsanova">A. Tsanova</name></noCountry><country name="Bulgarie"><region name="Sofia-ville (oblast)"><name sortKey="Georgiev, G As" sort="Georgiev, G As" uniqKey="Georgiev G" first="G As" last="Georgiev">G As Georgiev</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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