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Interactions by Disorder – A Matter of Context
Open accessAbstract
Living organisms depend on timely and organized interactions between proteins linked in interactomes of high complexity. The recent increased precision by which protein interactions can be studied, and the enclosure of intrinsic structural disorder, suggest that it is time to zoom out and embrace protein interactions beyond the most central points of physical encounter. The present paper discusses protein-protein interactions in the view of structural disorder with an emphasis on flanking regions and contexts of disorder-based interactions. Context constitutes an overarching concept being of physicochemical, biomolecular, and physiological nature, but it also includes the immediate molecular context of the interaction. For intrinsically disordered proteins, which often function by exploiting short linear motifs, context contributes in highly regulatory and decisive manners and constitute a yet largely unrecognized source of interaction potential in a multitude of biological processes. Through selected examples, this review emphasizes how multivalency, charges and charge clusters, hydrophobic patches, dynamics, energetic frustration, and ensemble redistribution of flanking regions or disordered contexts are emerging as important contributors to allosteric regulation, positive and negative cooperativity, feedback regulation and negative selection in binding. The review emphasizes that understanding context, and in particular the role the molecular disordered context and flanking regions take on in protein interactions, constitute an untapped well of energetic modulation potential, also of relevance to drug discovery and development.
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“Although there are clear context dependent modulations of intrinsic sequence-ensemble relationships, these modulations range from being negligible to predictable based on the sequence features of IDRs and the types of folded domains to which IDRs are tethered.80,81”
From AlphaFold and Implications for Intrinsically Disordered Proteins (2021) · cites this paper as [81]
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Direct prediction of intermolecular interactions driven by disordered regionsPreprint
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Proteome-scale characterisation of motif-based interactome rewiring by disease mutations
Kliche, J., Simonetti, L., Krystkowiak, I., Kuss, H., Diallo, M., Rask, E., Nilsson, J., Davey, N. E., & Ivarsson, Y. (2024) · Molecular Systems Biology · doi:10.1038/s44320-024-00055-4 · Cited by 20
“…likely to result in the reduction or enhancement of af fi nity, there is a growing literature reporting on the contribution of non-consensus residues in motif instances (wild-card positions) and of motif-fl anking regions to the af fi nity of interactions (Karlsson et al, 2022; Bugge et al, 2020).”
Gruber, T., Lewitzky, M., Machner, L., Weininger, U., Feller, S. M., & Balbach, J. (2021) · Journal of Molecular Biology · doi:10.1016/j.jmb.2021.167407 · Cited by 21
Role of charges in a dynamic disordered complex between an IDP and a folded domain
Bugge, K., Sottini, A., Ivanović, M. T., Buus, F. S., Saar, D., Fernandes, C. B., Kocher, F., Martinsen, J. H., Schuler, B., Best, R. B., et al. (2025) · Nature Communications · doi:10.1038/s41467-025-58374-5 · Cited by 20
“Reviewer #2 (Remarks to the Author) In the reviewed manuscript, Bugge et al. probe the dynamic, electrostatic interactions between prothymosin alpha (an IDP) and the small, folded domain of H1.”
Use of AI-methods over MD simulations in the sampling of conformational ensembles in IDPs
Sil, S., Datta, I., & Basu, S. (2025) · Frontiers in Molecular Biosciences · doi:10.3389/fmolb.2025.1542267 · Cited by 22
Pelham, J. F., Mosier, A. E., Altshuler, S. C., Rhodes, M. L., Kirchhoff, C. L., Fall, W. B., Mann, C., Baik, L. S., Chiu, J. C., & Hurley, J. (2021) · Cell Reports · doi:10.1016/j.celrep.2023.112376 · Cited by 19
Langstein-Skora, I., Schmid, A., Huth, F., Shabani, D., Spechtenhauser, L., Likhodeeva, M., Kunert, F., Metzner, F. J., Emenecker, R. J., Richardson, M. O. G., et al. (2026) · Nature Cell Biology · doi:10.1038/s41556-025-01867-8 · Cited by 19
“The importance of context in relation to motif function has been seen in other systems 61,82,110 .”
Evolution of SLiM-mediated hijack functions in intrinsically disordered viral proteins
Glavina, J., Palópoli, N., & Chemes, L. B. (2022) · Essays in Biochemistry · doi:10.1042/ebc20220059 · Cited by 15
“The close inspection of host and viral SLiMs indicates that fine-tuning of binding affinity and specificity occurs at multiple levels [101] which include changes in core [67], wildcard [70,102] and flanking [72,103] residues (Figure 4) as well as conformational preferences such as secondary…”
BackgroundIntrinsic disorder and flexibility in proteins: a challenge for structural biology and drug design
Zanotti, G. (2023) · Crystallography Reviews · doi:10.1080/0889311x.2023.2208518 · Cited by 16
“All these factors are analysed and discussed in reference [86], and examples are reported.”
BackgroundAllosteric control of dynamin-related protein 1 through a disordered C-terminal Short Linear Motif
Pérez-Jover, I., Rochon, K., Hu, D., Mahajan, M. K., Mohan, P. M., Santos-Pérez, I., Gisasola, J. O., Galvez, J. M. M., Agirre, J., Qi, X., et al. (2024) · Nature Communications · doi:10.1038/s41467-023-44413-6 · Cited by 15
“1a, b) that, unlike other IDRs in Drp1, is highly conserved among metazoans (Supplementary Fig.”
BackgroundInfluentialDesign of functional intrinsically disordered proteins
Garg, A., Foutel, N. S. G., Gielnik, M. B., & Kjærgaard, M. (2024) · Protein Engineering Design and Selection · doi:10.1093/protein/gzae004 · Cited by 15
Synergies of Single Molecule Fluorescence and NMR for the Study of Intrinsically Disordered Proteins
Naudi-Fabra, S., Blackledge, M. J., & Milles, S. (2021) · Biomolecules · doi:10.3390/biom12010027 · Cited by 15
Putta, S., Álvarez, L., Lüdtke, S., Sehr, P. A., Müller, G. A., Fernandez, S. M., Tripathi, S. M., Lewis, J., Gibson, T. J., Chemes, L. B., et al. (2022) · Structure · doi:10.1016/j.str.2022.05.019 · Cited by 16
A context-dependent and disordered ubiquitin-binding motif
Dreier, J. E., Prestel, A., Martins, J. M. D. S., Broendum, S. S., Nielsen, O., Garbers, A. E., Suga, H., Boomsma, W., Rogers, J. M., Hartmann‐Petersen, R., et al. (2022) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-022-04486-w · Cited by 15
“In some cases, a SLiM alone may not represent the entire binding event, and the context of the disordered chain can impact the interaction both positively and negatively [25, 71].”
Ubiquitin Interacting Motifs: Duality Between Structured and Disordered Motifs
Lambrughi, M., Maiani, E., Fas, B. A., Shaw, G. S., Kragelund, B. B., Lindorff‐Larsen, K., Teilum, K., Invernizzi, G., & Papaleo, E. (2021) · Frontiers in Molecular Biosciences · doi:10.3389/fmolb.2021.676235 · Cited by 13
“Although individual SLiMs are short and mostly participate in transient interactions, they are essential to protein binding specificity and function (Bugge et al., 2020; Kumar et al., 2020).”
BackgroundFunctional roles and cancer variants of the bifunctional glycosylase NEIL2
Hua, A., & Sweasy, J. B. (2023) · Environmental and Molecular Mutagenesis · doi:10.1002/em.22555 · Cited by 12
“This particular missense mutation occurs in the NEIL2 disordered region, which is known to participate in protein – protein interactions (Bugge et al., 2020).”
The MDMX Acidic Domain Uses Allovalency to Bind Both p53 and MDMX
Fenton, M. J., Borcherds, W. M., Chen, L., Anbanandam, A., Levy, R., Chen, J., & Daughdrill, G. W. (2022) · Journal of Molecular Biology · doi:10.1016/j.jmb.2022.167844 · Cited by 12
Jankowski, M. S., Griffith, D., Shastry, D. G., Pelham, J. F., Ginell, G. M., Thomas, J., Karande, P., Holehouse, A. S., & Hurley, J. M. (2024) · Nature Communications · doi:10.1038/s41467-024-47761-z · Cited by 23
Protein binding and folding through an evolutionary lens
Jemth, P. (2025) · Current Opinion in Structural Biology · doi:10.1016/j.sbi.2024.102980 · Cited by 11
MUL1‐RING recruits the substrate, p53‐TAD as a complex with UBE2D2–UB conjugate
Lee, M., Lee, S.-O., Choi, J., Ryu, M., Lee, M., Kim, J., Hwang, E., Lee, C., Chi, S., & Ryu, K. (2022) · FEBS Journal · doi:10.1111/febs.16360 · Cited by 11
Fagerberg, E., Lenton, S., Nylander, T., Seydel, T., & Skepö, M. (2022) · The Journal of Physical Chemistry B · doi:10.1021/acs.jpcb.1c08976 · Cited by 11
The Structure of the Drp1 Lattice on Membrane
Peng, R., Rochon, K., Hutson, A. N., Stagg, S. M., & Mears, J. A. (2025) · Journal of Molecular Biology · doi:10.1016/j.jmb.2025.169125 · Cited by 12
“42,43 We tested the influence of the MoRF-1 region on the Drp1 lattice.”
Evolution of A bHLH Interaction Motif
Millard, P. S., Kragelund, B. B., & Burow, M. (2021) · International Journal of Molecular Sciences · doi:10.3390/ijms22010447 · Cited by 10
Structural properties of the HNF-1A transactivation domain
Kind, L., Driver, M., Raasakka, A., Onck, P. R., Njølstad, P. R., Arnesen, T., & Kursula, P. (2023) · Frontiers in Molecular Biosciences · doi:10.3389/fmolb.2023.1249939 · Cited by 10
“IDRs frequently harbor SLiMs, which are sequence elements of 6 - 12 residues that mediate the binding to folded interaction partners or promote LLPS by partaking in multivalent interactions (64).”
BackgroundShitaye, G., Ventserova, N., D’Abrosca, G., Dragone, M., Maina, E. W., Fattorusso, R., Iacovino, R., Russo, L., Isernia, C., & Malgieri, G. (2025) · Frontiers in Chemistry · doi:10.3389/fchem.2025.1597656 · Cited by 10
Staby, L., Kemplen, K. R., Stein, A., Ploug, M., Clarke, J., Skriver, K., Heidarsson, P. O., & Kragelund, B. B. (2020) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-020-03639-z · Cited by 10
Hidden Multivalency in Phosphatase Recruitment by a Disordered AKAP Scaffold
Watson, M. L., Almeida, T., Ray, A., Hanack, C., Elston, R., Btesh, J., McNaughton, P. A., & Stott, K. M. (2022) · Journal of Molecular Biology · doi:10.1016/j.jmb.2022.167682 · Cited by 10
Gurumoorthy, V., Shrestha, U. R., Zhang, Q., Pingali, S. V., Boder, E. T., Urban, V. S., Smith, J. C., Petridis, L., & O’Neill, H. (2023) · Biomacromolecules · doi:10.1021/acs.biomac.2c01158 · Cited by 10
Lemieux, P., Bradley, D. T. C., Dubé, A. K., Dionne, U., & Landry, C. R. (2023) · Genetics · doi:10.1093/genetics/iyad175 · Cited by 8
“Furthermore, the mechanisms behind the contribution of disordered regions to PPI are also undefined, but the modifications of these regions, as we did by replacing the binding motif, can also affect binding in unexpected ways (Bugge et al. 2020).”
BackgroundStm1 regulates Ifh1 activity revealing crosstalk between ribosome biogenesis and ribosome dormancy
Bianco, E., Bonassera, M., Uliana, F., Tilma, J., Winkler, M., Zencir, S., Gossert, A. D., Oborská‐Oplová, M., Dechant, R. C., Hugener, J., et al. (2025) · Molecular Cell · doi:10.1016/j.molcel.2025.04.008 · Cited by 10
Martinsen, J. H., Saar, D., Fernandes, C. B., Schuler, B., Bugge, K., & Kragelund, B. B. (2022) · Protein Science · doi:10.1002/pro.4281 · Cited by 10
“The function and native conformation of protein domains are often effected by their full-chain context, 37 – 39 and accumulating evidence suggests that the binding mode of the GD in the nucleosome is influenced by its disordered tails.”
BackgroundLuo, S., Wohl, S., Zheng, W., & Yang, S. (2023) · Biomolecules · doi:10.3390/biom13030530 · Cited by 10
Mihalič, F., Arcila, D., Pettersson, M. E., Farkhondehkish, P., Andersson, E., Andersson, L., Betancur‐R, R., & Jemth, P. (2024) · Molecular Biology and Evolution · doi:10.1093/molbev/msae018 · Cited by 8
“However, recent data suggested that flanking disordered regions of the binding motif may modulate affinity (Bugge et al. 2020; Theisen et al. 2021; Karlsson et al. 2022).”
BackgroundMetabotropic Glutamate Receptors at Ribbon Synapses in the Retina and Cochlea
Klotz, L., & Enz, R. (2022) · Cells · doi:10.3390/cells11071097 · Cited by 9
Biallelic variants in SNUPN cause a limb girdle muscular dystrophy with myofibrillar-like features
Iruzubieta, P., Damborenea, A., Ioghen, M. R., Bajew, S., Fernández‐Torrón, R., Töpf, A., Herrero-Reiriz, Á., Epure, D., Vill, K., Hernández‐Laín, A., et al. (2024) · Brain · doi:10.1093/brain/awae046 · Cited by 8
“15 Specifically, the IDR may act as a swinging arm 57 that permits high amplitude motions required for binding or as a flanking region 58 to the folded domains.”
BackgroundKolonko, M., Uversky, V. N., & Greb‐Markiewicz, B. (2021) · International Journal of Molecular Sciences · doi:10.3390/ijms22062868 · Cited by 9
“Interestingly, protein-protein interaction (PPI) could lead to LLPS formation, which enable the partition of specific functions, but in contrast LLPS may also prevent from protein interactions [22,23][24].”
BackgroundDisordered proteins mitigate the temperature dependence of site-specific binding free energies
Thole, J. F., Waudby, C. A., & Pielak, G. J. (2023) · Journal of Biological Chemistry · doi:10.1016/j.jbc.2023.102984 · Cited by 9
Karlsson, E., Ottoson, C., Ye, W., Andersson, E., & Jemth, P. (2023) · Biochemistry · doi:10.1021/acs.biochem.3c00285 · Cited by 8
Engineering intrinsically disordered regions for guiding genome navigation
Liu, J., Kumar, D. K., Hurieva, B., Jonas, F., & Barkai, N. (2026) · Molecular Cell · doi:10.1016/j.molcel.2026.01.019 · Cited by 9
Metadata
- Authors
- Bugge, K., Brakti, I., Fernandes, C. B., Dreier, J. E., Lundsgaard, J. E., Olsen, J. G., Skriver, K., & Kragelund, B. B.
- Affiliations
- University of Copenhagen (DK)
- Corresponding author
- Skriver, Karen
- Kragelund, Birthe B.
- ORCID
- Venue
- Frontiers in Molecular Biosciences
- Publisher
- Frontiers Media SA
- Published
- 2020-06-16
- Volume
- 7
- Pages
- 110-110
- ISSN
- 2296-889X (ISSN-L)
- PMC
- PMC7308724
- OpenAlex
- W3036355682
- Cited by
- 155
- References
- 159
- Citations by year
- 2026: 16 · 2025: 21 · 2024: 20 · 2023: 31 · 2022: 34 · 2021: 24 · 2020: 9
- FWCI
- 2.35
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Frontiers in Molecular Biosciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Novo Nordisk Fonden
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Interaction Studies and Fluorescence Analysis
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › 14-3-3 protein interactions
- Keywords
- protein-protein interaction, intrinsically disordered proteins, structural disorder, flanking regions, context-dependent interactions, short linear motifs, multivalency, charge clusters, hydrophobic patch, allosteric regulation, feedback regulation, protein-protein interaction network, drug discovery
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