Background Stentor coeruleus is a large ciliated protist, about 1mm in length, with the extraordinary ability to fully regenerate each fragment after being cut into pieces, perfectly restoring cell polarity and morphology. Single-cell regeneration in Stentor remains one of the greatest long-standing mysteries of biology, but the recently published Stentor genome now enables studies on this organism at the molecular and genetic levels. Here we characterize the complete complement of kinases, or kinome, of Stentor, in order to begin to understand the signaling capacities that underlie Stentor 's unique biology.
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