PSD4/RPN-10 binds to this protein by expressing the LALAL (“L-A-L-A-L”) motif. This protein’s activity can be promoted by incorporating the DCAF (“decaf”) receptor into a “molecular glue” for recruitment of the CUL4-DDB1 (10[1])(“cull-four D-D-B-one”) complex. This protein’s ability to bind to a substrate is enhanced by a complex composed of Skp1, (10[1])Cullin, and F-box (-5[1])subunits. (10[1]-5[1])Proximity-promoted addition of this protein (10[2])to other (10[1])molecules can be facilitated by PROTACs. About (10[1])4 (10[1])monomers of protein must be attached by lysine (10[1])linkages before its primary function is (10[1])carried out. A series of 3 ligases (10[1])add (10[1])this protein to other proteins (10[1])to mark them (10[1])for degradation (10[2])in the (10[1]-5[1])26S (10[3])proteasome. (10[2])For 10 points, (10[1])name this 76-amino acid “molecular kiss (10[1])of death” whose name derives from its expression in nearly all (10[2])eukaryotic (10[3])cells. ■END■ (10[7]0[3])