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Schreier et al. report a previously undescribed cytoplasmic condensate, termed the paternal epigenetic inheritance (PEI) granule, that contains the Argonaute protein WAGO-3 and 22G small RNAs and mediates paternal epigenetic inheritance in C. elegans.
Jijumon et al. develop a medium-throughput, lysate-based approach to characterize microtubule interactors, starting here with a set of 45 proteins, and describe unique microtubule behaviours and microtubule-associated activities.
Pomp et al. show that specification of inner cell mass versus trophectoderm depends on a monoastral spindle that drives asymmetric cell division patterns, arguing against a stochastic inner–outer lineage segregation in the mouse embryo.
Samelson et al. report that BRD2 inhibition suppresses SARS-CoV-2 infection in epithelial cells and Syrian hamsters via reducing the transcription of host cell surface receptor ACE2.
Mirman et al. report that the primary function of the shieldin complex in double-strand break repair in BRCA1-deficient cells is the recruitment of the CST–Polα–primase complex to conduct fill-in synthesis.
Das et al. show that the copper transporter CTR1 functions as a redox sensor in endothelial cells. CTR1 is modified after redox stress, which induces CTR1–VEGFR2 complex formation and promotes VEGFR2 signalling and angiogenesis.
Through CRISPR–Cas9 and kinase inhibitor screening, Zhang et al. show that PKCβII phosphorylates and activates ACSL4 to enhance polyunsaturated fatty acid-containing lipid biosynthesis, thereby promoting accumulation of lipid peroxidation and ferroptosis.
Han et al. report that the Hippo pathway kinases LATS1 and LATS2 phosphorylate the heavy metal response transcription factor MTF1, leading to attenuation of heavy metal response gene transcription and cellular detoxification.
Chowdhury, Sau and Musser report a multicolour imaging approach that enables the 3D visualization of cargo transport trajectories relative to a super-resolved nuclear pore complex scaffold in non-fixed permeabilized cells.
Krastev et al. report that trapped PARP1 undergoes SUMOylation, followed by ubiquitylation, resulting in the recruitment of the p97 ATPase to remove trapped PARP1 from chromatin and prevent PARP inhibitor-induced cytotoxicity.