Auxin-Responsive Genes AIR12 Code for a New Family of Plasma Membrane b-Type Cytochromes Specific to Flowering Plants1[C][W][OA]
Identifieur interne : 001E55 ( Main/Merge ); précédent : 001E54; suivant : 001E56Auxin-Responsive Genes AIR12 Code for a New Family of Plasma Membrane b-Type Cytochromes Specific to Flowering Plants1[C][W][OA]
Auteurs : Valeria Preger ; Nunzio Tango ; Christophe Marchand ; Stéphane D. Lemaire ; Donatella Carbonera ; Marilena Di Valentin ; Alex Costa ; Paolo Pupillo ; Paolo TrostSource :
- Plant Physiology [ 0032-0889 ] ; 2009.
Abstract
We report here on the identification of the major plasma membrane (PM) ascorbate-reducible b-type cytochrome of bean (
Url:
DOI: 10.1104/pp.109.139170
PubMed: 19386804
PubMed Central: 2689961
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PMC:2689961Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Auxin-Responsive Genes <italic>AIR12</italic>
Code for a New Family of Plasma Membrane b-Type Cytochromes Specific to Flowering Plants<xref ref-type="fn" rid="fn1">1</xref>
<xref ref-type="fn" rid="fn3">[C]</xref>
<xref ref-type="fn" rid="fn4">[W]</xref>
<xref ref-type="fn" rid="fn5">[OA]</xref>
</title>
<author><name sortKey="Preger, Valeria" sort="Preger, Valeria" uniqKey="Preger V" first="Valeria" last="Preger">Valeria Preger</name>
</author>
<author><name sortKey="Tango, Nunzio" sort="Tango, Nunzio" uniqKey="Tango N" first="Nunzio" last="Tango">Nunzio Tango</name>
</author>
<author><name sortKey="Marchand, Christophe" sort="Marchand, Christophe" uniqKey="Marchand C" first="Christophe" last="Marchand">Christophe Marchand</name>
</author>
<author><name sortKey="Lemaire, Stephane D" sort="Lemaire, Stephane D" uniqKey="Lemaire S" first="Stéphane D." last="Lemaire">Stéphane D. Lemaire</name>
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<author><name sortKey="Carbonera, Donatella" sort="Carbonera, Donatella" uniqKey="Carbonera D" first="Donatella" last="Carbonera">Donatella Carbonera</name>
</author>
<author><name sortKey="Di Valentin, Marilena" sort="Di Valentin, Marilena" uniqKey="Di Valentin M" first="Marilena" last="Di Valentin">Marilena Di Valentin</name>
</author>
<author><name sortKey="Costa, Alex" sort="Costa, Alex" uniqKey="Costa A" first="Alex" last="Costa">Alex Costa</name>
</author>
<author><name sortKey="Pupillo, Paolo" sort="Pupillo, Paolo" uniqKey="Pupillo P" first="Paolo" last="Pupillo">Paolo Pupillo</name>
</author>
<author><name sortKey="Trost, Paolo" sort="Trost, Paolo" uniqKey="Trost P" first="Paolo" last="Trost">Paolo Trost</name>
</author>
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<idno type="pmid">19386804</idno>
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<idno type="doi">10.1104/pp.109.139170</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Auxin-Responsive Genes <italic>AIR12</italic>
Code for a New Family of Plasma Membrane b-Type Cytochromes Specific to Flowering Plants<xref ref-type="fn" rid="fn1">1</xref>
<xref ref-type="fn" rid="fn3">[C]</xref>
<xref ref-type="fn" rid="fn4">[W]</xref>
<xref ref-type="fn" rid="fn5">[OA]</xref>
</title>
<author><name sortKey="Preger, Valeria" sort="Preger, Valeria" uniqKey="Preger V" first="Valeria" last="Preger">Valeria Preger</name>
</author>
<author><name sortKey="Tango, Nunzio" sort="Tango, Nunzio" uniqKey="Tango N" first="Nunzio" last="Tango">Nunzio Tango</name>
</author>
<author><name sortKey="Marchand, Christophe" sort="Marchand, Christophe" uniqKey="Marchand C" first="Christophe" last="Marchand">Christophe Marchand</name>
</author>
<author><name sortKey="Lemaire, Stephane D" sort="Lemaire, Stephane D" uniqKey="Lemaire S" first="Stéphane D." last="Lemaire">Stéphane D. Lemaire</name>
</author>
<author><name sortKey="Carbonera, Donatella" sort="Carbonera, Donatella" uniqKey="Carbonera D" first="Donatella" last="Carbonera">Donatella Carbonera</name>
</author>
<author><name sortKey="Di Valentin, Marilena" sort="Di Valentin, Marilena" uniqKey="Di Valentin M" first="Marilena" last="Di Valentin">Marilena Di Valentin</name>
</author>
<author><name sortKey="Costa, Alex" sort="Costa, Alex" uniqKey="Costa A" first="Alex" last="Costa">Alex Costa</name>
</author>
<author><name sortKey="Pupillo, Paolo" sort="Pupillo, Paolo" uniqKey="Pupillo P" first="Paolo" last="Pupillo">Paolo Pupillo</name>
</author>
<author><name sortKey="Trost, Paolo" sort="Trost, Paolo" uniqKey="Trost P" first="Paolo" last="Trost">Paolo Trost</name>
</author>
</analytic>
<series><title level="j">Plant Physiology</title>
<idno type="ISSN">0032-0889</idno>
<idno type="eISSN">1532-2548</idno>
<imprint><date when="2009">2009</date>
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<front><div type="abstract" xml:lang="en"><p>We report here on the identification of the major plasma membrane (PM) ascorbate-reducible b-type cytochrome of bean (<italic>Phaseolus vulgaris</italic>
) and soybean (<italic>Glycine max</italic>
) hypocotyls as orthologs of Arabidopsis (<italic>Arabidopsis thaliana</italic>
) AIR12 (for auxin induced in root cultures). Soybean AIR12, which is glycosylated and glycosylphosphatidylinositol-anchored to the external side of the PM in vivo, was expressed in <italic>Pichia pastoris</italic>
in a recombinant form, lacking the glycosylphosphatidylinositol modification signal and purified from the culture medium. Recombinant AIR12 is a soluble protein predicted to fold into a <italic>β</italic>
-sandwich domain and belonging to the DOMON (for dopamine <italic>β</italic>
-monooxygenase N terminus) domain superfamily. It is shown to be a b-type cytochrome with a symmetrical <italic>α</italic>
-band at 561 nm, fully reduced by ascorbate, and fully oxidized by monodehydroascorbate radical. AIR12 is a high-potential cytochrome b showing a wide bimodal dependence from the redox potential between +80 mV and +300 mV. Optical absorption and electron paramagnetic resonance analysis indicate that AIR12 binds a single, highly axial low-spin heme, likely coordinated by methionine-91 and histidine-76, which are strongly conserved in AIR12 sequences. Phylogenetic analyses reveal that the auxin-responsive genes <italic>AIR12</italic>
represent a new family of PM b-type cytochromes specific to flowering plants. Circumstantial evidence suggests that AIR12 may interact with other redox partners within the PM to constitute a redox link between cytoplasm and apoplast.</p>
</div>
</front>
</TEI>
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