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Our last paper (so far?) on Planar Cell Polarity:

Chorro A., Verma B., Homfeldt M., Ibáñez B., Lawrence P.A., and Casal J. Planar cell polarity: intracellular asymmetry and supracellular gradients of Dachsous Open Biology 12: 20195 (2022)

The slope of a supracellular molecular gradient has long been thought to orient and coordinate planar cell polarity (PCP). Here we demonstrate and measure that gradient. Dachsous (Ds) is a conserved and elemental molecule of PCP; Ds forms intercellular bridges with another cadherin molecule,