Editors' ChoiceCellular and Molecular Signaling

Papers of note in Science 356 (6342)

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Science Signaling  13 Jun 2017:
Vol. 10, Issue 483, eaao0450
DOI: 10.1126/scisignal.aao0450

This week’s articles explore the structural basis for nitrate sensing in bacteria, the importance of attenuating healing responses to reduce fibrosis and allergy, and the recruitment of chromatin silencing factors in X chromosome inactivation.


Bacterial sensing mechanism revealed

Gushchin et al. solved crystal structures of a transmembrane sensor protein to show how sensing of nitrate occurs in bacteria.


Local macrophage clean-up

Minutti et al. and Bosurgi et al. showed that the cytokine interleukin-4 is required for macrophage-mediated tissue repair and remodeling (see also Bouchery and Harris).


Polycomb steps to inactivate X

Almeida et al. redefined how polycomb recruitment in X inactivation occurs by showing that PRC1 initiates the recruitment of PRC2 in response to Xist RNA expression.

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