dbPAF Protein Information


Tag Content
dbPAF ID dbPAF-0001310
Uniprot Accession O35779; BHE41_RAT;
Genbank Protein ID
Genbank Nucleotide ID
Protein Name Class E basic helix-loop-helix protein 41
Protein Synonyms/Alias
Gene Name Bhlhb3
Gene Synonyms/Alias Sharp1;
Organism Rattus norvegicus(Rat)
NCBI Taxa ID 10116
Functional Description
(View all)
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 and in turn is repressed by PER1/2 and CRY1/2. Represses the activity of the circadian transcriptional activator: CLOCK-ARNTL/BMAL1 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/B/G, NR1H3/LXRA, NR1H4 and VDR transactivation activity (By similarity).
Phosphorylation Sites
dbPAF PTMs: 1
PositionPeptidesSourceReferences ( PMIDs )
122NGERSLKSPVQADLDcurated25532521
Sequence
(Fasta)
MDEGIPHLQE RQLLEHRDFI GLDYSSLYMC KPKRSLKRDD TKDTYKLPHR LIEKKRRDRI 60
NECIAQLKDL LPEHLKLTTL GHLEKAVVLE LTLKHLKALT ALTEQQHQKI IALQNGERSL 120
KSPVQADLDA FHSGFQTCAK EVLQYLARFE SWTPREPRCA QLVSHLHAVA TQLLTPQVTP 180
GRGPGRAPCS AGAAAASGSE RVARCVPVIQ RTQPGTEPEH DTDTDSGYGG EAEQGRAAVK 240
QEPPGDPSAA PKRLKLEARG ALLGPEPALL GSLVALGGGA PFAQPAAAPF CLPFYLLSPS 300
AAAYVQPWLD KSGLDKYLYP AAAAPFPLLY PGIPAAAAAA AAAAFPCLSS VLSPPPEKAG 360
SAAGAPFLAH EVAPPGSLRP QHAHSRTHLP HAVNPESSQE DATQPAKDAP 411
Keyword

KW-0090--Biological rhythms
KW-0181--Complete proteome
KW-0238--DNA-binding
KW-0539--Nucleus
KW-1185--Reference proteome
KW-0678--Repressor
KW-0804--Transcription
KW-0805--Transcription regulation

Interpro

IPR011598--bHLH_dom
IPR003650--Orange_dom

PROSITE

PS50888--BHLH
PS51054--ORANGE

Pfam

PF07527--Hairy_orange
PF00010--HLH

Gene Ontology

GO:0005634--C:nucleus
GO:0003677--F:DNA binding
GO:0003714--F:transcription corepressor activity
GO:0007623--P:circadian rhythm
GO:0009649--P:entrainment of circadian clock
GO:0045892--P:negative regulation of transcription, DNA-templated
GO:0007399--P:nervous system development
GO:0048168--P:regulation of neuronal synaptic plasticity
GO:0006351--P:transcription, DNA-templated