Dr Kate Wegener

Lecturer

School of Biological Sciences

College of Science


I work at the interface of chemistry and biology, using structure-guided molecular design to develop therapeutics and diagnostic biosensors for a variety of applications. By investigating how molecules interact with their target, we can rationally improve their chemistry for both function and stability.

Projects in my laboratory involve the development of both small molecules and peptidomimetics that interact with their biological target with high affinity.  As part of multi-disciplinary collaborations, we apply structural techniques, including nuclear magnetic resonance (NMR) spectroscopy and crystallography, to examine these molecular interactions at high resolution, and rationally alter ligand chemistry to produce compounds with desirable biochemical and pharmacological properties. Interaction kinetics are quantified using a variety of biophysical techniques such as fluorescence polarization and NMR spectroscopy, as well as surface plasmon resonance (SPR) using our state-of-the-art Biacore S200.

Peptidomimetic projects involve the rational design of peptide-based inhibitors of protein-protein interactions, using chemical modification to stabilise the peptides and improve their pharmacological potential.

Current projects include:

  • Development of novel antibiotics targeting essential enzymes in Mycobacterium tuberculosis.
  • Constrained peptidomimetics targeting PCNA – the human DNA sliding clamp – as a novel approach to cancer treatment.
  • Constrained peptidomimetics as antagonists of nuclear receptor function, for applications in cancer, diabetes, and other diseases.

Date Position Institution name
2017 - ongoing ARC Research Fellow The University of Adelaide
2010 - 2017 Ramsay Fellow University of Adelaide
2002 - ongoing Research Associate University of Oxford

Date Institution name Country Title
1998 - 2002 University of Adelaide Australia PhD
1994 - 1997 University of Adelaide Australia Bachelor of Science (Honours)

Year Citation
2025 Sternicki, L. M., Pukala, T. L., Pacholarz, K. J., Barran, P., Booker, G. W., Polyak, S. W., & Wegener, K. L. (2025). Hydrogen-Deuterium Exchange Defines Ligand-Induced Conformational Changes to the Class III Biotin Protein Ligase from Saccharomyces cerevisiae. ChemBioChem, 26(20), e202500439-1-e202500439-12.
DOI
2023 Salaemae, W., Thompson, A., Gaiser, B., Lee, K. J., Huxley, M., Sumby, C., . . . Wegener, K. (2023). Fortuitous<i>in vitro</i>compound degradation produces a tractable hit against<i>Mycobacterium tuberculosis</i>dethiobiotin synthetase: a cautionary tale of what goes in, does not always come out.
DOI
2023 Pantong, W., Pederick, J. L., Maenpuen, S., Tinikul, R., Jayapalan, J. J., Jovcevski, B., . . . Salaemae, W. (2023). Biochemical and Structural Characterization of Meningococcal Methylenetetrahydrofolate Reductase. Protein Science, 32(6), e4654-1-e4654-13.
DOI Scopus1 WoS1 Europe PMC2
2023 Salaemae, W., Thompson, A. P., Gaiser, B. I., Lee, K. J., Huxley, M. T., Sumby, C. J., . . . Wegener, K. L. (2023). Fortuitous <i>In Vitro</i> Compound Degradation Produces a Tractable Hit against <i>Mycobacterium tuberculosis</i> Dethiobiotin Synthetase: A Cautionary Tale of What Goes In Does Not Always Come Out. ACS Chemical Biology, 18(9), 1985-1992.
DOI
2021 Schumann, N. C., Lee, K. J., Thompson, A. P., Salaemae, W., Pederick, J. L., Avery, T., . . . Abell, A. D. (2021). Inhibition of Mycobacterium tuberculosis dethiobiotin synthase (MtDTBS): toward next-generation antituberculosis agents. ACS Chemical Biology, 16(11), 2339-2347.
DOI Scopus7 WoS7 Europe PMC7
2020 Horsley, J. R., Jovcevski, B., Wegener, K. L., Yu, J., Pukala, T. L., & Abell, A. (2020). Rationally Designed Peptide-Based Inhibitor of Aβ42 Fibril Formation and Toxicity: A Potential Therapeutic Strategy for Alzheimer's Disease.. Biochemical Journal, 477(11), 2039-2054.
DOI Scopus35 WoS57 Europe PMC43
2020 Horsfall, A. J., Dunning, K. R., Keeling, K. L., Scanlon, D. B., Wegener, K. L., & Abell, A. D. (2020). A bimane‐based peptide staple for combined helical induction and fluorescent imaging. ChemBioChem, 21(23), 1-11.
DOI Scopus10 WoS8 Europe PMC6
2020 Sternicki, L. M., Nguyen, S., Pacholarz, K. J., Barran, P., Pendini, N. R., Booker, G. W., . . . Polyak, S. W. (2020). Biochemical characterisation of class III biotin protein ligases from Botrytis cinerea and Zymoseptoria tritici. Archives of Biochemistry and Biophysics, 691, 108509-1-108509-11.
DOI Scopus3 WoS3 Europe PMC2
2018 Wegener, K. L., McGrath, A. E., Dixon, N. E., Oakley, A. J., Scanlon, D. B., Abell, A. D., & Bruning, J. B. (2018). Front Cover: Rational Design of a 3<sub>10</sub>‐Helical PIP‐Box Mimetic Targeting PCNA, the Human Sliding Clamp (Chem. Eur. J. 44/2018). Chemistry – A European Journal, 24(44), 11234.
DOI
2018 Wegener, K. L., McGrath, A. E., Dixon, N. E., Oakley, A. J., Scanlon, D. B., Abell, A. D., & Bruning, J. (2018). Rational design of a 310-helical PIP-box mimetic targeting PCNA - the human sliding clamp. Chemistry - A European Journal, 24(44), 11325-11331.
DOI Scopus17 WoS16 Europe PMC16
2018 Horsley, J. R., Yu, J., Wegener, K. L., Hoppmann, C., Rück-Braun, K., & Abell, A. D. (2018). Photoswitchable peptide-based ‘on-off’ biosensor for electrochemical detection and control of protein-protein interactions. Biosensors and Bioelectronics, 118, 188-194.
DOI Scopus23 WoS22 Europe PMC9
2018 Thompson, A., Wegener, K., Booker, G., Polyak, S., & Bruning, J. (2018). Precipitant-ligand exchange technique reveals the ADP binding mode in Mycobacterium tuberculosis dethiobiotin synthetase. Acta Crystallographica Section D: Structural Biology, 74(10), 965-972.
DOI Scopus4 WoS4 Europe PMC3
2018 Thompson, A. P., Salaemae, W., Pederick, J. L., Abell, A. D., Booker, G. W., Bruning, J. B., . . . Polyak, S. W. (2018). Mycobacterium tuberculosis Dethiobiotin Synthetase Facilitates Nucleoside Triphosphate Promiscuity through Alternate Binding Modes. ACS Catalysis, 8(11), 10774-10783.
DOI Scopus7 WoS6
2017 Marshall, A., Kroker, A., Murray, L., Gronthos, K., Rajapaksha, H., Wegener, K., & Bruning, J. (2017). Structure of the sliding clamp from the fungal pathogen Aspergillus fumigatus (AfumPCNA) and interactions with Human p21. FEBS Journal, 284(6), 985-1002.
DOI Scopus11 WoS11 Europe PMC10
2017 Sternicki, L., Wegener, K., Bruning, J., Booker, G., & Polyak, S. (2017). Mechanisms governing precise protein biotinylation. Trends in Biochemical Sciences, 42(5), 383-394.
DOI Scopus23 WoS21 Europe PMC13
2017 Rajapaksha, H., Bhatia, H., Wegener, K., Petrovsky, N., & Bruning, J. (2017). X-ray crystal structure of rivoglitazone bound to PPARγ and PPAR subtype selectivity of TZDs. Biochimica et Biophysica Acta - General Subjects, 1861(8), 1981-1991.
DOI Scopus19 WoS21 Europe PMC12
2016 Thompson, A. P., Sternicki, L. M., Wegener, K. L., Lu, W., Zhu, L., Booker, G. W., . . . Li, Y. (2016). Biotin Biology as a Target for New Anti-Tuberculosis Drugs. Jiangsu Journal of Preventive Medicine, 27(3), 257-261.
DOI
2016 Keeling, K., Cho, O., Scanlon, D., Booker, G., Abell, A., & Wegener, K. (2016). The key position: influence of staple location on constrained peptide conformation and binding. Organic & Biomolecular Chemistry, 14(41), 9731-9735.
DOI Scopus7 WoS7 Europe PMC4
2015 Salaemae, W., Yap, M., Wegener, K., Booker, G., Wilce, M., & Polyak, S. (2015). Nucleotide triphosphate promiscuity in Mycobacterium tuberculosis dethiobiotin synthetase. Tuberculosis, 95(3), 259-266.
DOI Scopus17 WoS16 Europe PMC12
2010 Anthis, N., Wegener, K., Critchley, D., & Campbell, I. (2010). Structural diversity in integrin/talin interactions. Structure, 18(12), 1654-1666.
DOI Scopus77 WoS78 Europe PMC78
2010 Kalli, A., Wegener, K., Goult, B., Anthis, N., Campbell, I., & Sansom, M. (2010). The structure of the talin/integrin complex at a lipid bilayer: an NMR and MD simulation study. Structure, 18(10), 1280-1288.
DOI Scopus56 WoS52 Europe PMC50
2009 Goult, B., Bate, N., Anthis, N., Wegener, K., Gingras, A., Patel, B., . . . Critchley, D. (2009). The structure of an interdomain complex that regulates talin activity. Journal of Biological Chemistry, 284(22), 15097-15106.
DOI Scopus111 WoS104 Europe PMC105
2009 Anthis, N., Wegener, K., Ye, F., Kim, C., Goult, B., Lowe, E., . . . Campbell, I. (2009). The structure of an integrin/talin complex reveals the basis of inside-out signal transduction. EMBO Journal, 28(22), 3623-3632.
DOI Scopus276 WoS271 Europe PMC272
2009 Anthis, N., Haling, J., Oxley, C., Memo, M., Wegener, K., Lim, C., . . . Campbell, I. (2009). β integrin tyrosine phosphorylation is a conserved mechanism for regulating talin-induced integrin activation. Journal of Biological Chemistry, 284(52), 36700-36710.
DOI Scopus108 WoS104 Europe PMC98
2008 Wegener, K., Basran, J., Bagshaw, C., Campbell, I., Roberts, G., Critchley, D., & Barsukov, I. (2008). Structural basis for the interaction between the cytoplasmic domain of the hyaluronate receptor layilin and the talin F3 subdomain. Journal of Molecular Biology, 382(1), 112-126.
DOI Scopus47 WoS44 Europe PMC39
2008 Wegener, K., & Campbell, I. (2008). Transmembrane and cytoplasmic domains in integrin activation and protein-protein interactions. Molecular Membrane Biology, 25(5), 376-387.
DOI Scopus107 WoS99 Europe PMC90
2008 Oxley, C., Anthis, N., Lowe, E., Vakonakis, I., Campbell, I., & Wegener, K. (2008). An integrin phosphorylation switch the effect of β3 integrin tail phosphorylation on dok1 and talin binding. Journal of Biological Chemistry, 283(9), 5420-5426.
DOI Scopus96 WoS97 Europe PMC96
2007 Wegener, K. L., Partridge, A. W., Han, J., Pickford, A. R., Liddington, R. C., Ginsberg, M. H., & Campbell, I. D. (2007). Structural Basis of Integrin Activation by Talin. Cell, 128(1), 171-182.
DOI Scopus573 WoS548 Europe PMC494
2006 Kiema, T., Lad, Y., Jiang, P., Oxley, C., Baldassarre, M., Wegener, K., . . . Calderwood, D. (2006). The molecular basis of filamin binding to integrins and competition with talin. Molecular Cell, 21(3), 337-347.
DOI Scopus358 WoS342 Europe PMC334
2005 de Pereda, J., Wegener, K., Santelli, E., Bate, N., Ginsberg, M., Critchley, D., . . . Liddington, R. (2005). Structural basis for phosphatidylinositol phosphate kinaseType Iγ binding to talin at focal adhesions. Journal of Biological Chemistry, 280(9), 8381-8386.
DOI Scopus71 WoS68 Europe PMC64
2003 Brinkworth, C., Carver, J., Wegener, K., Doyle, J., Llewellyn, L., & Bowie, J. (2003). The solution structure of frenatin 3, a neuronal nitric oxide synthase inhibitor from the giant tree frog, Litoria infrafrenata. Biopolymers, 70(3), 424-434.
DOI Scopus13 WoS12 Europe PMC8
2003 Doyle, J., Brinkworth, C., Wegener, K., Carver, J., Llewellyn, L., Olver, I., . . . Tyler, M. (2003). nNOS inhibition, antimicrobial and anticancer activity of the amphibian skin peptide, citropin 1.1 and synthetic modifications. FEBS Journal, 270(6), 1141-1153.
DOI Scopus80 WoS69 Europe PMC55
2003 Marcotte, I., Wegener, K., Lam, Y., Chia, C., de Planque, M., Bowie, J., . . . Separovic, F. (2003). Interaction of antimicrobial peptides from Australian amphibians with lipid membranes. Chemistry and Physics of Lipids, 122(1-2), 107-120.
DOI Scopus136 WoS133 Europe PMC92
2003 Wegener, K., Carver, J., & Bowie, J. (2003). The solution structures and activity of caerin 1.1 and caerin 1.4 in aqueous trifluoroethanol and dodecylphosphocholine micelles. Biopolymers, 69(1), 42-59.
DOI Scopus15 WoS15 Europe PMC11
2002 Doyle, J., Llewellyn, L., Brinkworth, C., Bowie, J., Wegener, K., Rozek, T., . . . Tyler, M. (2002). Amphibian peptides that inhibit neuronal nitric oxide synthase - The isolation of lesueurin from the skin secretion of the Australian Stony Creek Frog Litoria lesueuri. FEBS Journal, 269(1), 100-109.
DOI Scopus56 WoS55 Europe PMC37
2001 Wegener, K., Brinkworth, C., Bowie, J., Wallace, J., & Tyler, M. (2001). Bioactive dahlein peptides from the skin secretions of the Australian aquatic frog Litoria dahlii: sequence determination by electrospray mass spectrometry. Rapid Communications in Mass Spectrometry, 15(18), 1726-1734.
DOI Scopus35 WoS33 Europe PMC29
2000 Lambert, S., Seater, J., Wegener, K., Woodhouse, S., Lincoln, S., & Ward, A. (2000). A preparative, spectroscopic and equilibrium study of some phenyl-2-thiazoline fluorophores for aluminium(III) detection. New Journal of Chemistry, 24(7), 541-546.
DOI Scopus12 WoS11
2000 Rozek, T., Wegener, K., Bowie, J., Olver, I., Carver, J., Wallace, J., & Tyler, M. (2000). The antibiotic and anticancer active aurein peptides from the Australian Bell Frogs Litoria aurea and Litoria raniformis: The solution structure of aurein 1.2. FEBS Journal, 267(17), 5330-5341.
DOI Scopus278 WoS256 Europe PMC193
1999 Bowie, J., Wegener, K., Chia, B., Wabnitz, P., Carver, J., Tyler, M., & Wallace, J. (1999). Host defence antibacterial peptides from skin secretions of Australian amphibians. The relationship between structure and activity. Protein and Peptide Letters, 6(5), 259-269.
DOI Scopus40 WoS36
1999 Wegener, K., Wabnitz, P., Carver, J., Bowie, J., Chia, B., Wallace, J., & Tyler, M. (1999). Host defence peptides from the skin glands of the Australian Blue Mountains tree-frog Litoria citropa. European Journal of Biochemistry, 265(2), 627-637.
DOI Scopus87 WoS83 Europe PMC59

Year Citation
2018 Authors: Wegener K, Mcgrath A, Dixon N, Oakley A, Scanlon D, Abell A, Bruning J. Title: Rational Design of a 310-Helical PIP-Box Mimetic Targeting PCNA, the Human Sliding Clamp [Cover Profile]. Description: N/A. Extent: N/A.
DOI

Channel 7 Children’s Research Fund  “Designed Antibiotics Targeting Drug-Resistant and Latent Tuberculosis” ($74,411)

ARC Discovery Grant (DP120100582) (2012) Abell, A.D., Wegener, K.L., Callen, D.F., Ginsberg, M.H. “Defining peptide structure and function: the shape of things to come.”

Kidman Fellowship (2015), The University of Adelaide

Ramsay Fellowship (2009), The University of Adelaide.

Guest lecturer on Peptidomimetics, for the Masters in Biotechnology, Drug Discovery and Development course (2014-), The University of Adelaide.

Date Role Research Topic Program Degree Type Student Load Student Name
2017 - 2021 Co-Supervisor Determining the molecular basis of beta-cyano-alanine and gamma-glutamyl-beta-cyano-alanine toxin accumulation in Vicia sativa Doctor of Philosophy Doctorate Full Time Dr Vy Hoang Thao Nguyen
2015 - 2019 Co-Supervisor Structural and Biophysical Characterisation of Mycobacterium tuberculosis Dethiobiotin Synthetase Doctor of Philosophy Doctorate Full Time Andrew Philip Thompson
2015 - 2020 Co-Supervisor Biotin Protein Ligase as a Novel Antifungal Drug Target Doctor of Philosophy Doctorate Full Time Miss Louise Marie Sternicki
2013 - 2018 Co-Supervisor A Study on Side Chain Linked Peptides, Toward the Development of Talin Inhibitors using B3 Integrin Peptide Analogues Doctor of Philosophy Doctorate Part Time Miss Kelly Lee Keeling

Date Role Committee Institution Country
2014 - ongoing Board Member Adelaide Protein Group - Australia

Date Role Membership Country
2015 - ongoing Member Australian Peptide Association Australia
2011 - ongoing Member Australian Society for Medical Research Australia
2010 - ongoing Member Australian Society for Biochemistry and Molecular Biology Australia
2000 - ongoing Member Australia and New Zealand Magnetic Resonance Society -

Date Role Editorial Board Name Institution Country
2012 - ongoing Editor ANZMAGazine - -

Date Office Name Institution Country
2017 - ongoing Treasurer Adelaide Protein Group Australia
2016 - ongoing State representative (SA) Australian Peptide Association Australia

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