Function : clock circadian regulator
Description : The protein encoded by this gene plays a central role in the regulation of circadian rhythms. The protein encodes a transcription factor of the basic helix-loop-helix (bHLH) family and contains DNA binding histone acetyltransferase activity. The encoded protein forms a heterodimer with ARNTL (BMAL1) that binds E-box enhancer elements upstream of Period (PER1, PER2, PER3) and Cryptochrome (CRY1, CRY2) genes and activates transcription of these genes. PER and CRY proteins heterodimerize and repress their own transcription by interacting in a feedback loop with CLOCK/ARNTL complexes. Polymorphisms in this gene may be associated with behavioral changes in certain populations and with obesity and metabolic syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]
| Super Class | Basic domains |
| Class | Basic helix-loop-helix factors (bHLH) |
| Family | PAS domain factors |
| Sub Family | Arnt-like factors |
| Ensembl | ENSG00000134852 |
| RefSeq | NP_004889 |
| Uniprot | O15516 |
| Aliases | KAT13D, bHLHe8 |
| UCSC Gene coordinates | chr4:55427900-55547137 |
| JASPAR | MA0819.1 |
| Wikipedia | CLOCK |
| WikiGenes | CLOCK |
| Transcription Factor Encylopedia | CLOCK |
| GeneCards | CLOCK |
| FactorBook | CLOCK |
| Datasets quality |
|
|
DNA constraint | Motifs | |
|
UCSC genome browser |
| All peaks | BED file | ![]() |
| Merged peaks (non-redundant peaks) |
BED file | ![]() |
| Peak sequences | FASTA file |
| Datasets quality |
|
|
DNA constraint | Motifs | |
|
UCSC genome browser |
| All peaks | BED file | ![]() |
| Merged peaks (non-redundant peaks) |
BED file | ![]() |
| Peak sequences | FASTA file |