CsV03-3 is a member of a novel gene family from citrus that encodes a protein with DNA binding activity and whose expression is responsive to defense signals and abiotic stress

We have identified a novel gene designated CsV03-3 from Citrus sinensis (L.) Osbeck that encodes a 50 amino acid polypeptide with a predicted molecular mass of 5.4kDa and a pI of 3.7. CsV03-3 expression is up-regulated by application of methyl jasmonate, salicylic acid, and abscisic acid as well as...

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Veröffentlicht in:Journal of plant physiology. - 1979. - 165(2008), 5 vom: 15., Seite 531-43
1. Verfasser: Mozoruk, Jerry (VerfasserIn)
Weitere Verfasser: Hunnicutt, Laura E, Hunter, Wayne B, Bausher, Michael G
Format: Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Cyclopentanes DNA-Binding Proteins Oxylipins Plant Growth Regulators Plant Proteins jasmonic acid 6RI5N05OWW Salicylic Acid O414PZ4LPZ
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100 1 |a Mozoruk, Jerry  |e verfasserin  |4 aut 
245 1 0 |a CsV03-3 is a member of a novel gene family from citrus that encodes a protein with DNA binding activity and whose expression is responsive to defense signals and abiotic stress 
264 1 |c 2008 
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500 |a Date Completed 21.07.2008 
500 |a Date Revised 30.09.2020 
500 |a published: Print-Electronic 
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520 |a We have identified a novel gene designated CsV03-3 from Citrus sinensis (L.) Osbeck that encodes a 50 amino acid polypeptide with a predicted molecular mass of 5.4kDa and a pI of 3.7. CsV03-3 expression is up-regulated by application of methyl jasmonate, salicylic acid, and abscisic acid as well as by abiotic stress and insect herbivory. CsV03-3 belongs to a small gene family consisting of at least three other closely related members (CsV03-1, CsV03-2, and CsV03-4) whose expression is also responsive to phytohormone application and abiotic stress. Sequence similarity searches of the public databases were unsuccessful in finding sequence homologs to CsV03-3 or any CsV03 family member; however, structural prediction models coupled with model comparison to Protein Data Bank folds indicated that the predicted polypeptide encoded by CsV03-3 has structural similarity to proteins with nucleic acid binding activity. Gel mobility shift assays performed on recombinant CsV03-3 protein demonstrated active binding with dsDNA and, to a lesser extent, ssDNA. Based on the phytohormone-inducible expression patterns, the ability to bind nucleic acids, and the lack of significant sequence homology to public databases, we propose that CsV03-3 and its related homologs defines a new class of nucleic acid binding proteins that are responsive to defense and stress signaling in woody perennials 
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700 1 |a Hunnicutt, Laura E  |e verfasserin  |4 aut 
700 1 |a Hunter, Wayne B  |e verfasserin  |4 aut 
700 1 |a Bausher, Michael G  |e verfasserin  |4 aut 
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