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CLOCK

Meaning

CLOCK is an acronym for Circadian Locomotor Output Cycles Kaput, identifying a core transcriptional factor that is indispensable for the molecular machinery of the circadian clock in mammalian cells. This protein is a helix-loop-helix transcription factor, functioning as a positive regulator within the intricate genetic feedback loop that generates the body’s 24-hour rhythm. Its activity is essential for the rhythmic expression of thousands of downstream genes that control metabolism and behavior.