Using an Arabidopsis cell suspension protoplast system we show that PBP1 is a highly unstable, poly-ubiquitinated protein that can be stabilized by inhibition of proteasomal degradation. Co- expression of PID did not affect PBP1 poly-ubiquitination. Surprisingly, substitution of all the lysines in ...
Tlihqeubootstt(o4m μgblot protein) from the DRM fractions shown in (A). The presence of Mg2+ during the preparation of the sucrose gradient sfreapcatrioatnios.nTdhiedlnowotearfpfeacntetlhoefdeiasctrhibwuetsiotenrnofbαlo 2tδs -h1o(wupspthere left panel) and TSP4 (upper ...