The Shot CH1 domain recognises a distinct form of F-actin during Drosophila oocyte determination

As in mammals, only one cell in a Drosophila multicellular female germline cyst is specified as an oocyte. The symmetry-breaking cue for oocyte selection is provided by the fusome, a tubular structure connecting all cells in the cyst. The Drosophila spectraplakin Shot localises to the fusome and translates its asymmetry into a polarised microtubule network that is essential for oocyte…

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