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Interactions between hematopoietic stem cells and their niche are mediated by proteins within the plasma membrane (PM) and changes in these interactions might alter hematopoietic stem cell fate and ultimately result in acute myeloid leukemia (AML). Here, using nano-LC/MS/MS, we set out to analyze the PM profile of two leukemia patient samples. We identified(More)
Protein translocation in Escherichia coli is mediated by the translocase that in its minimal form consists of the protein-conducting channel SecYEG, and the motor protein, SecA. SecYEG forms a narrow pore in the membrane that allows passage of unfolded proteins only. Molecular dynamics simulations suggest that the maximal width of the central pore of SecYEG(More)
The Polycomb group (PcG) protein BMI1 is a key factor in regulating hematopoietic stem cell (HSC) and leukemic stem cell self-renewal and functions in the context of the Polycomb repressive complex 1 (PRC1). In humans, each of the 5 subunits of PRC1 has paralog family members of which many reside in PRC1 complexes, likely in a mutually exclusive manner,(More)
The convergence of molecular biology and synthetic chemistry has opened new avenues that enable, beyond the understanding of biological phenomena, the reproduction, control, and engineering of functions of naturally occurring systems. This approach has been extended to the exploration of biological motors and the incorporation of molecular switches in(More)
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In the past decade among the main developments in the field of bionanotechnology is the application of proteins in devices. Research focuses on the modification of enzyme systems by means of chemical and physical tools in order to achieve full control of their function and to employ them for specific tasks. Membrane protein channels are intriguing(More)
Leukemic stem cells (LSCs) reside within bone marrow niches that maintain their relatively quiescent state and convey resistance to conventional treatment. Many of the microenvironmental signals converge on RAC GTPases. Although it has become clear that RAC proteins fulfill important roles in the hematopoietic compartment, little has been revealed about the(More)
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