Abstract:
The present invention provides proteins capable of modulating or mediating the FAS receptor ligand or TNF effect on cells carrying FAS receptor or p55 receptor by binding or interacting with MORT-1 protein, which in turn binds to the intracellular domain of the FAS receptor or to another protein TRADD which binds to the p55 receptor. In addition, peptide inhibitors that interfere with the proteolytic activity of MORT-1-binding proteins having proteolytic activity are provided, as well as a method of designing them.
Abstract:
A modulator of regulatory cellular events occurring intracellularly which are mediated by regulatory proteins containing a nulldeath domainnull motif is provided. The nulldeath domainnull is a regulatory portion of the regulatory proteins, and the modulator is capable of interacting with one or more nulldeath domainnull motifs contained in the regulatory proteins and affecting the regulatory action of one or more of the regulatory proteins. The modulator preferably is capable of interacting with nulldeath domainnull motifs within p55-TNF-R, FAS/APO1-R, NGF-R, MORT-1, RIP, TRADD, or ankyrin. A method for producing the modulators is also provided. The modulators are useful for modulating functions mediated in cells by proteins containing the nulldeath domainnull.