Article
The Arabidopsis ATP-binding cassette protein AtMRP5/AtABCC5 is a high affinity inositol hexakisphosphate transporter involved in guard cell signaling and phytate storage.
The Journal of biological chemistry - 27 Nov 2009
Nagy Réka, Grob Hanne, Weder Barbara, Green Porntip, Klein Markus, Frelet-Barrand Annie, Schjoerring Jan K, Brearley Charles, Martinoia Enrico
Abstract excerpt
Arabidopsis possesses a superfamily of ATP-binding cassette (ABC) transporters. Among these, the multidrug resistance-associated protein AtMRP5/AtABCC5 regulates stomatal aperture and controls plasma membrane anion channels of guard cells. Remarkably, despite the prominent role of AtMRP5 in conferring partial drought insensitivity upon Arabidopsis, we know little of the biochemical function of AtMRP5. Our...
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