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Moore et al. show the role of actin assemblies in regulating the balanced distribution of a healthy mitochondrial network between daughter cells in mitosis.
Lancaster and colleagues describe a morphological change in early primate brain stem cells, the timing of which could underlie the differences in brain size between human and apes.
The majority of mitochondrial proteins are encoded in the nucleus, but mitochondria have an independent protein synthesis machinery that is required for the biogenesis of the respiratory chain. Recent insights into the mechanisms and regulation of mitochondrial protein synthesis have increased our understanding of mitochondrial function and its integration with cell physiology.
The histone modifiers Polycomb repressive complex 1 (PRC1) and PRC2 have important roles in development and disease, especially cancer. Recent studies have revealed the existence of various mutually exclusive PRC1 and PRC2 variants, and provided new insights into their molecular functions and physiological importance.
p38α — the best-characterized member of the p38 kinase family — is a key mediator of cellular stress responses. p38α is activated by a plethora of signals and functions through a multitude of substrates to regulate different cellular behaviours. Understanding context-dependent p38α signalling provides important insights into p38α roles in physiology and pathology.