Mouse Monoclonal BMAL1 antibody [1C5] (STJ97873)


Reactivity: Human
Applications: WB, IHC, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Mouse Monoclonal BMAL1 antibody [1C5] (STJ97873)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, IHC, ELISA

Recommended dilution: WB 1:500-1:2000; IHC 1:200-1:1000; ELISA 1:10000

Recommended protocols: check protocols

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Alternative names:

Check alternative names for the antibody


ARNTL antibody, BHLHE5 antibody, BMAL1 antibody, MOP3 antibody, PASD3 antibody,|ARNT like protein 1 brain and muscle antibody|Arntl antibody|Aryl hydrocarbon receptor nuclear translocator like antibody|Aryl hydrocarbon receptor nuclear translocator like protein 1 antibody|Aryl hydrocarbon receptor nuclear translocator-like protein 1 antibody|Basic helix loop helix PAS orphan MOP3 antibody|Basic helix loop helix PAS protein MOP3 antibody|Basic-helix-loop-helix-PAS protein MOP3 antibody|bHLH PAS protein JAP3 antibody|bHLH-PAS protein JAP3 antibody|bHLHe5 antibody|BMAL 1 antibody|BMAL1_HUMAN antibody|BMAL1c antibody|Brain and muscle ARNT like 1 antibody|Brain and muscle ARNT-like 1 antibody|CG8727 PA antibody|Class E basic helix-loop-helix protein 5 antibody|cycle antibody|JAP 3 antibody|JAP3 antibody|Member of PAS protein 3 antibody|Member of PAS superfamily 3 antibody|MGC47515 antibody|MOP 3 antibody|MOP3 antibody|PAS domain-containing protein 3 antibody|PASD 3 antibody|PASD3 antibody|TIC antibody|Anti-BMAL1 antibody – ChIP Grade (ab3350)
SCBT cat No: sc-373955|sc-365645|sc-48790|sc-8550|



BMAL1 Monoclonal Antibody

Catalogue No.





BMAL1 Monoclonal Antibody detects endogenous levels of BMAL1 protein.


Purified recombinant fragment of human BMAL1 expressed in E Coli





Recommended dilution

WB 1:500-1:2000; IHC 1:200-1:1000; ELISA 1:10000








BMAL1 Antibody was tube-contained. Ascitic fluid containing 0.03% sodium azide.


1 mg/ml


BMAL1 Antibody was purified using affinity purification.


-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Aryl hydrocarbon receptor nuclear translocator-like protein 1 antibody, Basic-helix-loop-helix-PAS protein MOP3 antibody, Brain and muscle ARNT-like 1 antibody, Class E basic helix-loop-helix protein 5 antibody, bHLHe5 antibody, Member of PAS protein 3 antibody, PAS domain-containing protein 3 antibody, bHLH-PAS protein JAP3 antibody

Database links

Human UniProt/Swiss-Prot:O00327;Mouse UniPort/Swiss-Prot: Q9WTL8;Rat UniProt/Swiss-Port: Q9EPW1;Human Entrez Gene: 406;Mouse Entrez Gene: 11865;Rat Entrez Gene: Rn.14532

Protein names

Aryl hydrocarbon receptor nuclear translocator-like protein 1 , Basic-helix-loop-helix-PAS protein MOP3 , Brain and muscle ARNT-like 1 , Class E basic helix-loop-helix protein 5 , bHLHe5 , Member of PAS protein 3 , PAS domain-containing protein 3 , bHLH-PAS protein JAP3

Protein function

Transcriptional activator which forms a core component of the circadian clock. The circadian clock, an internal time-keeping system, regulates various physiological processes through the generation of approximately 24 hour circadian rhythms in gene expression, which are translated into rhythms in metabolism and behavior. It is derived from the Latin roots ‘circa’ (about) and ‘diem’ (day) and acts as an important regulator of a wide array of physiological functions including metabolism, sleep, body temperature, blood pressure, endocrine, immune, cardiovascular, and renal function. Consists of two major components: the central clock, residing in the suprachiasmatic nucleus (SCN) of the brain, and the peripheral clocks that are present in nearly every tissue and organ system. Both the central and peripheral clocks can be reset by environmental cues, also known as Zeitgebers (German for ‘timegivers’). The predominant Zeitgeber for the central clock is light, which is sensed by retina and signals directly to the SCN. The central clock entrains the peripheral clocks through neuronal and hormonal signals, body temperature and feeding-related cues, aligning all clocks with the external light/dark cycle. Circadian rhythms allow an organism to achieve temporal homeostasis with its environment at the molecular level by regulating gene expression to create a peak of protein expression once every 24 hours to control when a particular physiological process is most active with respect to the solar day. Transcription and translation of core clock components (CLOCK, NPAS2, ARNTL/BMAL1, ARNTL2/BMAL2, PER1, PER2, PER3, CRY1 and CRY2) plays a critical role in rhythm generation, whereas delays imposed by post-translational modifications (PTMs) are important for determining the period (tau) of the rhythms (tau refers to the period of a rhythm and is the length, in time, of one complete cycle). A diurnal rhythm is synchronized with the day/night cycle, while the ultradian and infradian rhythms have a period shorter and longer than 24 hours, respectively. Disruptions in the circadian rhythms contribute to the pathology of cardiovascular diseases, cancer, metabolic syndromes and aging. A transcription/translation feedback loop (TTFL) forms the core of the molecular circadian clock mechanism. Transcription factors, CLOCK or NPAS2 and ARNTL/BMAL1 or ARNTL2/BMAL2, form the positive limb of the feedback loop, act in the form of a heterodimer and activate the transcription of core clock genes and clock-controlled genes (involved in key metabolic processes), harboring E-box elements (5′-CACGTG-3′) within their promoters. The core clock genes: PER1/2/3 and CRY1/2 which are transcriptional repressors form the negative limb of the feedback loop and interact with the CLOCK, NPAS2-ARNTL/BMAL1, ARNTL2/BMAL2 heterodimer inhibiting its activity and thereby negatively regulating their own expression. This heterodimer also activates nuclear receptors NR1D1/2 and RORA/B/G, which form a second feedback loop and which activate and repress ARNTL/BMAL1 transcription, respectively. ARNTL/BMAL1 positively regulates myogenesis and negatively regulates adipogenesis via the transcriptional control of the genes of the canonical Wnt signaling pathway. Plays a role in normal pancreatic beta-cell function; regulates glucose-stimulated insulin secretion via the regulation of antioxidant genes NFE2L2/NRF2 and its targets SESN2, PRDX3, CCLC and CCLM. Negatively regulates the mTORC1 signaling pathway; regulates the expression of MTOR and DEPTOR. Controls diurnal oscillations of Ly6C inflammatory monocytes; rhythmic recruitment of the PRC2 complex imparts diurnal variation to chemokine expression that is necessary to sustain Ly6C monocyte rhythms. Regulates the expression of HSD3B2, STAR, PTGS2, CYP11A1, CYP19A1 and LHCGR in the ovary and also the genes involved in hair growth. Plays an important role in adult hippocampal neurogenesis by regulating the timely entry of neural stem/progenitor cells (NSPCs) into the cell cycle and the number of cell divisions that take place prior to cell-cycle exit. Regulates the circadian expression of CIART and KLF11. The CLOCK-ARNTL/BMAL1 heterodimer regulates the circadian expression of SERPINE1/PAI1, VWF, B3, CCRN4L/NOC, NAMPT, DBP, MYOD1, PPARGC1A, PPARGC1B, SIRT1, GYS2, F7, NGFR, GNRHR, BHLHE40/DEC1, ATF4, MTA1, KLF10 and also genes implicated in glucose and lipid metabolism. Represses glucocorticoid receptor NR3C1/GR-induced transcriptional activity by reducing the association of NR3C1/GR to glucocorticoid response elements (GREs) via the acetylation of multiple lysine residues located in its hinge region. Promotes rhythmic chromatin opening, regulating the DNA accessibility of other transcription factors. The NPAS2-ARNTL/BMAL1 heterodimer positively regulates the expression of MAOA, F7 and LDHA and modulates the circadian rhythm of daytime contrast sensitivity by regulating the rhythmic expression of adenylate cyclase type 1 (ADCY1) in the retina. / The redox state of the cell can modulate the transcriptional activity of the CLOCK-ARNTL/BMAL1 and NPAS2-ARNTL/BMAL1 heterodimers; NADH and NADPH enhance the DNA-binding activity of the heterodimers.

Protein tissue specificity

Hair follicles (at protein level). Highly expressed in the adult brain, skeletal muscle and heart.

Protein sequence and domain

Contains 1 bHLH (basic helix-loop-helix) domain. / Contains 1 PAC (PAS-associated C-terminal) domain. / Contains 2 PAS (PER-ARNT-SIM) domains.

Protein post-translational modifications

Ubiquitinated, leading to its proteasomal degradation. / O-glycosylated; contains O-GlcNAc. O-glycosylation by OGT prevents protein degradation by inhibiting ubiquitination. It also stabilizes the CLOCK-ARNTL/BMAL1 heterodimer thereby increasing CLOCK-ARNTL/BMAL1-mediated transcription of genes in the negative loop of the circadian clock such as PER1/2/3 and CRY1/2. / Acetylated on Lys-538 upon dimerization with CLOCK. Acetylation facilitates CRY1-mediated repression. Deacetylated by SIRT1, which may result in decreased protein stability. / Phosphorylated upon dimerization with CLOCK. Phosphorylation enhances the transcriptional activity, alters the subcellular localization and decreases the stability of the CLOCK-ARNTL/BMAL1 heterodimer by promoting its degradation. Phosphorylation shows circadian variations in the liver with a peak between CT10 to CT14. Phosphorylation at Ser-90 by CK2 is essential for its nuclear localization, its interaction with CLOCK and controls CLOCK nuclear entry. / Sumoylated on Lys-259 upon dimerization with CLOCK. Predominantly conjugated to poly-SUMO2/3 rather than SUMO1 and the level of these conjugates undergo rhythmic variation, peaking at CT9-CT12. Sumoylation localizes it exclusively to the PML body and promotes its ubiquitination in the PML body, ubiquitin-dependent proteasomal degradation and the transcriptional activity of the CLOCK-ARNTL/BMAL1 heterodimer.

Protein cellular localization

Nucleus / Cytoplasm / Nucleus > PML body

Research area

All research areas>Transcription Regulators>BMAL
(View all antibody categories related to Transcription Regulators)


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St John’s Laboratory Ltd.

Product type

Primary antibody


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