BHLHE40 — Basic helix-loop-helix family member e40
BHLHE40 belongs to a gene co-expression module in 15 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
BHLHE40's module in each cell type
About the gene
| Synonyms | BHLHB2, Clast5, DEC1, SHARP2, STRA13 |
|---|---|
| Chromosome | 3: 4979437-4985323 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Predicted intracellular proteins, Transcription factors |
| Molecular function | DNA-binding, Repressor |
| Biological process | Biological rhythms, Transcription, Transcription regulation |
Function
Transcriptional repressor involved in the regulation of the circadian rhythm by negatively regulating the activity of the clock genes and clock-controlled genes. Acts as the negative limb of a novel autoregulatory feedback loop (DEC loop) which differs from the one formed by the PER and CRY transcriptional repressors (PER/CRY loop). Both these loops are interlocked as it represses the expression of PER1/2 and in turn is repressed by PER1/2 and CRY1/2. Represses the activity of the circadian transcriptional activator: CLOCK-BMAL1|BMAL2 heterodimer by competing for the binding to E-box elements (5'-CACGTG- 3') found within the promoters of its target genes. Negatively regulates its own expression and the expression of DBP and BHLHE41/DEC2. Acts as a corepressor of RXR and the RXR-LXR heterodimers and represses the ligand-induced RXRA and NR1H3/LXRA transactivation activity. May be involved in the regulation of chondrocyte differentiation via the cAMP pathway. Represses the transcription of NR0B2 and attentuates the transactivation of NR0B2 by the CLOCK-BMAL1 complex. Drives the circadian rhythm of blood pressure through transcriptional repression of ATP1B1 in the cardiovascular system.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.