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FEBS Lett. 2001 Nov 30;509(1):27-30.

A lipid transfer protein binds to a receptor involved in the control of plant defence responses.

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UMR 692 INRA/Université de Bourgogne, Laboratoire de Phytopharmacie et de Biochemie des Interactions Cellulaires, Dijon, France.


Lipid transfer proteins (LTPs) and elicitins are both able to load and transfer lipidic molecules and share some structural and functional properties. While elicitins are known as elicitors of plant defence mechanisms, the biological function of LTP is still an enigma. We show that a wheat LTP1 binds with high affinity sites. Binding and in vivo competition experiments point out that these binding sites are common to LTP1 and elicitins and confirm that they are the biological receptors of elicitins. A mathematical analysis suggests that these receptors could be represented by an allosteric model corresponding to an oligomeric structure with four identical subunits.

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