Their specificity for the host is partly achieved by specific host adhesion mechanisms. As adhesins are required for the first step of colonization, they also constitute key virulence factors and have ...

The nuclear pore complex (NPC) mediates transport of all macromolecules between the nucleus and the cytoplasm. The structure of the NPC — a cylindrical ring-like structure lined with nucleoporins ...

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One of these images has revealed never-before-seen, egg-like spheroids covering the sprawling structures — and scientists are struggling to explain them. Over the last 8 months, Curiosity has been ...