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Cyclin E at the centre of an identity crisis

Some Drosophila neural progenitor cells generate segment-specific lineages in the thorax versus the abdomen. The basis for these differences is the differential expression of Cyclin E. Cyclin E functions downstream of the homeotic genes and largely independently of its role in proliferation to autonomously specify thoracic identity.

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Figure 1: Cell-fate determination in the NB6-4 neuroblast lineage of Drosophila embryos.

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Chia, W., Prokopenko, S. Cyclin E at the centre of an identity crisis. Nat Cell Biol 7, 3–5 (2005). https://doi.org/10.1038/ncb0105-3

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