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- W3159162313 abstract "Treatment of tuberculosis (TB) currently takes at least 6 months. Latent Mycobacterium tuberculosis (Mtb) is phenotypically tolerant to most anti-TB drugs. A key hypothesis is that drugs that kill nonreplicating (NR) Mtb may shorten treatment when used in combination with conventional drugs. The Mtb proteasome (Mtb20S) could be such a target because its pharmacological inhibition kills NR Mtb and its genetic deletion renders Mtb unable to persist in mice. Here, we report a series of macrocyclic peptides that potently and selectively target the Mtb20S over human proteasomes, including macrocycle 6. The cocrystal structure of macrocycle 6 with Mtb20S revealed structural bases for the species selectivity. Inhibition of 20S within Mtb by 6 dose dependently led to the accumulation of Pup-tagged GFP that is degradable but resistant to depupylation and death of nonreplicating Mtb under nitrosative stress. These results suggest that compounds of this class have the potential to develop as anti-TB therapeutics." @default.
- W3159162313 created "2021-05-10" @default.
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- W3159162313 date "2021-05-05" @default.
- W3159162313 modified "2023-10-14" @default.
- W3159162313 title "Macrocyclic Peptides that Selectively Inhibit the <i>Mycobacterium tuberculosis</i> Proteasome" @default.
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- W3159162313 doi "https://doi.org/10.1021/acs.jmedchem.1c00296" @default.
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