The NOCTURNIN gene is transcribed to yield mRNA and the mRNA is translated to yield protein. The NOCTURNIN gene shows circadian expression because the BMAL1:CLOCK (ARNTL:CLOCK) heterodimer binds an E-box element in the NOCTURNIN promoter and activates transcription.
The phosphorylated BMAL1:CLOCK (ARNTL:CLOCK) heterodimer binds an E-box element in the promoter of the NOCTURNIN gene and activates transcription of NOCTURNIN. NPAS2 is predicted to act redundantly with CLOCK.
Zhang, Y, Yue, J, Peng, X, Hao, W, Yuan, J, Li, R, Qiang, B, Cao, JM, Ding, JM, Zhou, L
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