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Journal articleShchepinova MM, Hanyaloglu AC, Frost GS, et al., 2020,
Chemical biology of noncanonical G protein-coupled receptor signaling: Toward advanced therapeutics
, CURRENT OPINION IN CHEMICAL BIOLOGY, Vol: 56, Pages: 98-110, ISSN: 1367-5931- Author Web Link
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- Citations: 8
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Journal articlede Chiara C, Homsak M, Prosser GA, et al., 2020,
D-Cycloserine destruction by alanine racemase and the limit of irreversible inhibition
, NATURE CHEMICAL BIOLOGY, Vol: 16, Pages: 686-+, ISSN: 1552-4450- Author Web Link
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- Citations: 16
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Journal articleAnderson DP, Benns HJ, Tate EW, et al., 2020,
CRISPR-TAPE: protein-centric CRISPR guide design for targeted proteome engineering.
, Mol Syst Biol, Vol: 16Rational molecular engineering of proteins with CRISPR-based approaches is challenged by the gene-centric nature of gRNA design tools. To address this, we have developed CRISPR-TAPE, a protein-centric gRNA design algorithm that allows users to target specific residues, or amino acid types within proteins. gRNA outputs can be customized to support maximal efficacy of homology-directed repair for engineering purposes, removing time-consuming post hoc curation, simplifying gRNA outputs and reducing CPU times.
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Journal articleKounde C, Shchepinova M, Saunders C, et al., 2020,
A caged E3 ligase ligand for PROTAC-mediated protein degradation with light
, Chemical Communications, Vol: 56, Pages: 5532-5535, ISSN: 1359-7345With the intent of achieving greater spatiotemporal control of PROTAC-induced protein degradation, a light-activated degrader was designed by photocaging an essential E3 ligase binding motif in a BRD4 targeting PROTAC. Proteolysis was triggered only after a short irradiation time, the kinetics of which could be monitored by live-cell video microscopy.
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Journal articleWard JA, Pinto-Fernandez A, Cornelissen L, et al., 2020,
Re-Evaluating the Mechanism of Action of alpha,beta-Unsaturated Carbonyl DUB Inhibitors b-AP15 and VLX1570: A Paradigmatic Example of Unspecific Protein Cross-linking with Michael Acceptor Motif-Containing Drugs
, JOURNAL OF MEDICINAL CHEMISTRY, Vol: 63, Pages: 3756-3762, ISSN: 0022-2623 -
Journal articleTzakoniati F, Xu H, Garcia N, et al., 2020,
Development of photocrosslinking probes based on Huwentoxin-IV to map the site of interaction on Nav1.7
, Cell Chemical Biology, Vol: 27, Pages: 306-313.e4, ISSN: 2451-9456Voltage-gated sodium (Nav) channels respond to changes in the membrane potential of excitable cells through the concerted action of four voltage-sensor domains (VSDs). Subtype Nav1.7 plays an important role in the propagation of signals in pain-sensing neurons and is a target for the clinical development of novel analgesics. Certain inhibitory cystine knot (ICK) peptides produced by venomous animals potently modulate Nav1.7, however the molecular mechanisms underlying their selective binding and activity remain elusive. This study reports on the design of a library of photoprobes based on the potent spider toxin Huwentoxin-IV and the determination of the toxin binding interface on VSD2 of Nav1.7 through a photocrosslinking and tandem mass spectrometry approach. Our Huwentoxin-IV probes selectively crosslink to extracellular loop S1-2 and helix S3 of VSD2 in a chimeric channel system. Our results provide a strategy that will enable mapping of sites of interaction of other ICK peptides on Nav channels.
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Journal articleRueda-Zubiaurre A, Yahiya S, Fischer O, et al., 2020,
Structure-activity relationship studies of a novel class of transmission blocking antimalarials targeting male gametes.
, Journal of Medicinal Chemistry, Vol: 63, Pages: 2240-2262, ISSN: 0022-2623Malaria is still a leading cause of mortality among children in the developing world, and despite the immense progress made in reducing the global burden, further efforts are needed if eradication is to be achieved. In this context, targeting transmission is widely recognized as a necessary intervention towards that goal. After carrying out a screen to discover new transmission-blocking agents, herein we report our medicinal chemistry efforts to study the potential of the most robust hit, DDD01035881, as a male-gamete targeted compound. We reveal key structural features for the activity of this series and identify analogues with greater potency and improved metabolic stability. We believe this study lays the groundwork for further development of this series as a transmission blocking agent.
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Journal articleDian C, Inmaculada P-D, Riviere F, et al., 2020,
High-resolution snapshots of human N-myristoyltransferase in action illuminate a mechanism promoting N-terminal Lys and Gly myristoylation
, Nature Communications, Vol: 11, Pages: 1-15, ISSN: 2041-1723The promising drug target N-myristoyltransferase (NMT) catalyses an essential protein modification thought to occur exclusively at N-terminal glycines (Gly). Here, we present high-resolution human NMT1 structures co-crystallised with reactive cognate lipid and peptide substrates, revealing high-resolution snapshots of the entire catalytic mechanism from the initial to final reaction states. Structural comparisons, together with biochemical analysis, provide unforeseen details about how NMT1 reaches a catalytically competent conformation in which the reactive groups are brought into close proximity to enable catalysis. We demonstrate that this mechanism further supports efficient and unprecedented myristoylation of an N-terminal lysine side chain, providing evidence that NMT acts both as N-terminal-lysine and glycine myristoyltransferase.
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Journal articleLucy D, Zhang L, Tate EW, 2020,
A Natural Product Puts Malaria on a Low-Fat Diet
, CELL CHEMICAL BIOLOGY, Vol: 27, Pages: 137-139, ISSN: 2451-9448 -
Journal articleHoward RT, Hemsley P, Petteruti P, et al., 2020,
Structure-guided design and in-cell target profiling of a cell-active target engagement probe for PARP inhibitors
, ACS Chemical Biology, Vol: 15, Pages: 325-333, ISSN: 1554-8929Inhibition of the poly(ADP-ribose) polymerase (PARP) family of enzymes has become an attractive therapeutic strategy in oncology and beyond; however, chemical tools to profile PARP engagement in live cells are lacking. Herein, we report the design and application of PARPYnD, the first photoaffinity probe (AfBP) for PARP enzymes based on triple PARP1/2/6 inhibitor AZ9482, which induces multipolar spindle (MPS) formation in breast cancer cells. PARPYnD is a robust tool for profiling PARP1/2 and is used to profile clinical PARP inhibitor olaparib, identifying several novel off-target proteins. Surprisingly, while PARPYnD can enrich recombinant PARP6 spiked into cellular lysates and inhibits PARP6 in cell-free assays, it does not label PARP6 in intact cells. These data highlight an intriguing biomolecular disparity between recombinant and endogenous PARP6. PARPYnD provides a new approach to expand our knowledge of the targets of this class of compounds and the mechanisms of action of PARP inhibitors in cancer.
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