Publications by authors named "Robert J Pengelly"

Article Synopsis
  • Tumor-associated peptide-human leukocyte antigen complexes (pHLAs) are key targets for cancer therapies due to their role as cancer-specific epitopes on cell surfaces.
  • Two strategies are being developed to redirect T cells against these targets: using affinity-enhanced T cell receptors (ImmTACs) and TCR-mimic antibodies.
  • Research indicates that ImmTAC molecules have better selectivity and less off-target activity compared to TCR-mimic antibodies, which tend to bind more broadly, highlighting the importance of understanding pHLA specificity in designing effective cancer treatments.
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Glycoside hydrolases (GHs) have attracted considerable attention as targets for therapeutic agents, and thus mechanism-based inhibitors are of great interest. We report the first structural analysis of a carbocyclic mechanism-based GH inactivator, the results of which show that the two Michaelis complexes are in H conformations. We also report the synthesis and reactivity of a fluorinated analogue and the structure of its covalently linked intermediate (flattened H half-chair).

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Bacteria often produce toxins which kill competing bacteria. Colicins, produced by and toxic to Escherichia coli bacteria are three-domain proteins so efficient that one molecule can kill a cell. The C-terminal domain carries the lethal activity and the central domain is required for surface receptor binding.

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