In this study, we use Calnexin (CNX) as a model protein to define principles of intramembrane chaperoning. We show that CNX directly recognizes non-glycosylated, misfolded clients via its single transmembrane domain. Furthermore, we reveal a protective function of CNX on membrane proteins by identifying an intramembrane recognition motif within its transmembrane domain that protects clients from degradation. At the same time, using an artificial minimal consensus membrane (CoMem) reporter system we systematically dissect client signatures that CNX recognizes in the membrane.
«
In this study, we use Calnexin (CNX) as a model protein to define principles of intramembrane chaperoning. We show that CNX directly recognizes non-glycosylated, misfolded clients via its single transmembrane domain. Furthermore, we reveal a protective function of CNX on membrane proteins by identifying an intramembrane recognition motif within its transmembrane domain that protects clients from degradation. At the same time, using an artificial minimal consensus membrane (CoMem) reporter system...
»