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Bioessays. 2000 Jan;22(1):48-56.

clk-1, mitochondria, and physiological rates.

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Department of Biology, McGill University, Montréal, Québec, Canada.


Mutations in the C. elegans maternal-effect gene clk-1 are highly pleiotropic, affecting the duration of diverse developmental and behavioral processes. They result in an average slowing of embryonic and post-embryonic development, adult rhythmic behaviors, reproduction, and aging.(1) CLK-1 is a highly conserved mitochondrial protein,(2,3) but even severe clk-1 mutations affect mitochondrial respiration only slightly.(3) Here, we review the evidence supporting the regulatory role of clk-1 in physiological timing. We also discuss possible models for the action of CLK-1, in particular, one proposing that CLK-1 is involved in the coordination of mitochondrial and nuclear function. BioEssays 22:48-56, 2000.

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