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r hospitals so as to limit the spread of antibiotic-resistant bacteria in our healthcare facilities. is a challenging pathogen responsible for serious nosocomial infections. Colistin resistance in carbapenem-resistant strains is a critical health problem as it limits the available therapeutic options. The current work aimed to study the reliability of several phenotypic methods for the detection of colistin resistance among carbapenem-resistant isolates in Egypt. A total of 22 carbapenem-resistant isolates were recovered. Colistin mi

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The complexity of the cellular medium can affect proteins' properties, and, therefore, in-cell characterization of proteins is essential. We explored the stability and conformation of the first baculoviral IAP repeat (BIR) domain of X chromosome-linked inhibitor of apoptosis (XIAP), BIR1, as a model for a homodimer protein in human HeLa cells. We employed double electron-electron resonance (DEER) spectroscopy and labeling with redox stable and rigid Gd3+ spin labels at three representative protein residues, C12 (flexible region), E22C, and