[show abstract][hide abstract] ABSTRACT: Auxin is implicated in a variety of plant developmental processes, yet the molecular mechanism of auxin response remains largely unknown. Auxin binding protein 1 (ABP1) mediates cell expansion and might be involved in cell cycle control. Structural modeling shows that it is a beta-barrel dimer, with the C terminus free to interact with other proteins. We do not know where ABP1 performs its receptor function. Most ABP1 is detected within the endoplasmic reticulum but the evidence indicates that it functions at the plasma membrane. ABP1 is established as a crucial component of auxin signaling, but its precise mechanism remains unclear.
Trends in Plant Science 01/2002; 6(12):586-90. · 11.81 Impact Factor
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