Gibberellin signal transduction presents ellipsisthe SPY who O-GlcNAc'd me.
Although the molecular mechanisms by which plants respond to gibberellins are largely unknown, several components of the signal transduction pathway have been identified and a broad outline of how these components act in signal transduction is emerging. One component of the pathway, SPINDLY, is believed to be an O-GlcNAc transferase that post-translationally modifies cytosolic and nuclear proteins by the addition of O-linked N-acetylglucosamine. Although analysis of the properties of O-GlcNAc-modified proteins from animals has led to the hypothesis that this modification is regulatory, it has not been linked to specific signal transduction pathways.
Thornton
TM
Dept of Plant Biology, University of Minnesota, St Paul, MN 55108-1095, USA.
Swain
SM
Olszewski
NE