Do not adopt a folded structure in its functional form, but exist as a flexible mobile polypeptide
Intrinsic disorder is particularly enriched in proteins implicated in cell signaling, transcription and chromatin remodeling functions
Intrinsically unstructured proteins are characterized by a low content of bulky hydrophobic amino acids and a high proportion of polar and charged amino acids.
Thus disordered sequences cannot bury sufficient hydrophobic core to fold like stable globular proteins.