Genome-wide Circadian Regulation: A Unique System for Computational Biology

Overview

Journal Comput Struct Biotechnol J

Specialty Biotechnology

Date 2020 Aug 11

PMID 32774786

Citations 4

Authors

Lingying Sun

Junjie Ma

Christoph W Turck

Pin Xu

Guang-Zhong Wang

Affiliations

Soon will be listed here.

Abstract

Circadian rhythms are 24-hour oscillations affecting an organism at multiple levels from gene expression all the way to tissues and organs. They have been observed in organisms across the kingdom of life, spanning from cyanobacteria to humans. In mammals, the master circadian pacemaker is located in the hypothalamic suprachiasmatic nuclei (SCN) in the brain where it synchronizes the peripheral oscillators that exist in other tissues. This system regulates the circadian activity of a large part of the transcriptome and recent findings indicate that almost every cell in the body has this clock at the molecular level. In this review, we briefly summarize the different factors that can influence the circadian transcriptome, including light, temperature, and food intake. We then summarize recently identified general principles governing genome-scale circadian regulation, as well as future lines of research. Genome-scale circadian activity represents a fascinating study model for computational biology. For this purpose, systems biology methods are promising exploratory tools to decode the global regulatory principles of circadian regulation.

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