Behaviour of intrinsically disordered proteins in protein-protein complexes with an emphasis on fuzziness

Research output: Contribution to journalReviewResearchpeer-review


Intrinsically disordered proteins (IDPs) do not, by themselves, fold into a compact globular structure. They are extremely dynamic and flexible, and are typically involved in signalling and transduction of information through binding to other macromolecules. The reason for their existence may lie in their malleability, which enables them to bind several different partners with high specificity. In addition, their interactions with other macromolecules can be regulated by a variable amount of chemically diverse post-translational modifications. Four kinetically and energetically different types of complexes between an IDP and another macromolecule are reviewed: (1) simple two-state binding involving a single binding site, (2) avidity, (3) allovalency and (4) fuzzy binding; the last three involving more than one site. Finally, a qualitative definition of fuzzy binding is suggested, examples are provided, and its distinction to allovalency and avidity is highlighted and discussed.

Original languageEnglish
JournalCellular and Molecular Life Sciences
Issue number17
Pages (from-to)3175-3183
Number of pages9
Publication statusPublished - Sep 2017

    Research areas

  • Journal Article, Review

Number of downloads are based on statistics from Google Scholar and

No data available

ID: 180068631