A ubiquitin-binding motif required for intramolecular monoubiquitylation, the CUE domain.

Abstract excerpt

Monoubiquitylation is a regulatory signal, like phosphorylation, that can alter the activity, location or structure of a protein. Monoubiquitin signals are likely to be recognized by ubiquitin-binding proteins that transmit the regulatory information conferred by monoubiquitylation. To identify monoubiquitin-binding proteins, we used a mutant ubiquitin that lacks the primary site of polyubiquitin chain formation...

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