A Compensated Clock: Temperature and Nutritional Compensation Mechanisms Across Circadian Systems.

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Tác giả: Jay C Dunlap, Christina M Kelliher, Jennifer J Loros, Adrienne K Mehalow, Elizabeth-Lauren Stevenson

Ngôn ngữ: eng

Ký hiệu phân loại: 133.594 Types or schools of astrology originating in or associated with a

Thông tin xuất bản: United States : BioEssays : news and reviews in molecular, cellular and developmental biology , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 616776

Circadian rhythms are ∼24-h biological oscillations that enable organisms to anticipate daily environmental cycles, so that they may designate appropriate day/night functions that align with these changes. The molecular clock in animals and fungi consists of a transcription-translation feedback loop, the plant clock is comprised of multiple interlocking feedback-loops, and the cyanobacterial clock is driven by a phosphorylation cycle involving three main proteins. Despite the divergent core clock mechanisms across these systems, all circadian clocks are able to buffer period length against changes in the ambient growth environment, such as temperature and nutrients. This defining capability, termed compensation, is critical to proper timekeeping, yet the underlying mechanism(s) remain elusive. Here we examine the known players in, and the current models for, compensation across five circadian systems. While compensation models across these systems are not yet unified, common themes exist across them, including regulation via temperature-dependent changes in post-translational modifications.
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