Enables protein serine/threonine kinase activity. Involved in peptidyl-serine phosphorylation; response to hermaphrodite contact; and vulval location. Located in several cellular components, including dendrite; neuronal cell body; and non-motile cilium. Part of protein kinase CK2 complex. Is expressed in oocyte. Orthologous to several human genes including CSNK2A1 (casein kinase 2 alpha 1) and CSNK2A3 (casein kinase 2 alpha 3).
WB Description
kin-3 encodes an ortholog of the catalytic subunit of casein kinase II alpha, which in Drosophila and mammals is required for normal circadian rhythms, and which directly phosphorylates the Drosophila PERIOD protein (which itself regulates circadian rhythms); by analogy, KIN-3 might be expected to help regulate heterochronic functions dependent on such proteins as LIN-42.