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The Mycobacterium tuberculosis tyrosine‐specific phosphatase MptpA and its cognate kinase PtkA are prospective targets for anti‐tuberculosis drugs as they interact with the host defense response within the macrophages. Although both are structurally well‐characterized, the functional mechanism regulating their activity remains poorly understood. Here, we investigate the effect of post‐translational...
Sampangine is an azaoxoaporphine alkaloid with interesting biological activities. Elucidating the mode of action of sampangine is a topic of continuous research. Recently reported cell-based data have indicated heme-dysfunction and subsequent reactive oxygen species production as being responsible for the biological activity of the natural product. By using an in vitro biochemical assay the ability...
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