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Table 1 Model variables

From: A mathematical model of circadian rhythms and dopamine

Variable Description
BC BMAL1-CLOCK; protein dimer that drives the transcription of
  core clock genes
Pi PERIOD protein (PER) with i phosphorylations in the cytosol
C CRYPTOCHROME protein (CRY) in the cytosol
PC PER-CRY protein dimer in the cytosol
PCN nuclear PER-CRY protein dimer; inhibits BMAL1-CLOCK
PN nuclear PER
CN nuclear CRY; inhibits transcription driven by BMAL1-CLOCK
ROR retinoic acid receptor-related orphan receptor (ROR)
REV orphan nuclear receptor REV-ERB
S Bmal1; circadian clock gene
TH Tyrosine hydroxylase (TH); rate-limiting enzyme in dopamine
MAO Monoamine oxidase (MAO); catalyzes dopamine degradation
DRD3 Dopamine receptor D3 (DRD3)