BHLHE40

Gene Information

Official Symbol: BHLHE40
Official Name: basic helix-loop-helix family member e40
Aliases and Previous Symbols: N/A
Entrez ID: 8553
UniProt: O14503
Interactions: BioGRID
PubMed articles: Open PubMed
OMIM: Open OMIM

Function Summary

Entrez Summary: N/A
UniProt Summary: 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-ARNTL/BMAL1|ARNTL2/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. {ECO:0000269|PubMed:12397359, ECO:0000269|PubMed:14672706, ECO:0000269|PubMed:15193144, ECO:0000269|PubMed:15560782, ECO:0000269|PubMed:18411297, ECO:0000269|PubMed:19786558}.

Pfam Domains GO Terms

CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Global Fraction of Cell Lines Where Essential: 0/739

Tissue	Fraction Of Cell Lines Where Essential
1290807.0	0/1
909776.0	0/1
bile duct	0/28
blood	0/28
bone	0/26
breast	0/33
central nervous system	0/56
cervix	0/4
colorectal	0/17
esophagus	0/13
fibroblast	0/1
gastric	0/16
kidney	0/21
liver	0/20
lung	0/75
lymphocyte	0/16
ovary	0/26
pancreas	0/24
peripheral nervous system	0/16
plasma cell	0/15
prostate	0/1
skin	0/24
soft tissue	0/9
thyroid	0/2
upper aerodigestive	0/22
urinary tract	0/29
uterus	0/5

Essentiality in NALM6

Essentiality Rank: 14863
Expression level (log2 read counts): 2.0

Expression Distribution

HLH
Hairy orange

MRF binding
entrainment of circadian clock by photoperiod
bHLH transcription factor binding
photoperiodism
entrainment of circadian clock
E-box binding
RNA polymerase II activating transcription factor binding
circadian regulation of gene expression
RNA polymerase II distal enhancer sequence-specific DNA binding
regulation of circadian rhythm
circadian rhythm
negative regulation of DNA-binding transcription factor activity
anterior/posterior pattern specification
transcription corepressor activity
protein domain specific binding
DNA-binding transcription repressor activity, RNA polymerase II-specific
rhythmic process
nuclear body
response to light stimulus
RNA polymerase II regulatory region sequence-specific DNA binding
regionalization
regulation of DNA-binding transcription factor activity
pattern specification process
response to radiation
protein heterodimerization activity
DNA-binding transcription factor activity
regulation of neurogenesis
negative regulation of transcription by RNA polymerase II
protein homodimerization activity
regulation of nervous system development
regulation of cell development
negative regulation of molecular function
response to abiotic stimulus
negative regulation of transcription, DNA-templated
negative regulation of nucleic acid-templated transcription
negative regulation of RNA biosynthetic process
negative regulation of RNA metabolic process
negative regulation of cellular macromolecule biosynthetic process
negative regulation of nucleobase-containing compound metabolic process
negative regulation of macromolecule biosynthetic process