CLOCK antibody - 100 µg

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Host : Rabbit
Clonality: Polyclonal
Clone:
Isotype: IgG
Immunogen: clock homolog(Mouse)
Purity: ≥95% as determined by SDS-PAGE
Form: Liquid
Molecular weight: 110 kDa
Uniprot: O15516
Gene id: 9575
Background: 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. CLOCK has an intrinsic acetyltransferase activity, which enables circadian chromatin remodeling by acetylating histones and nonhistone proteins, including its own partner ARNTL
BMAL1. Regulates the circadian expression of ICAM1, VCAM1, CCL2, THPO and MPL and also acts as an enhancer of the transactivation potential of NF-kappaB. Plays an important role in the homeostatic regulation of sleep. 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 CLOCK-ARNTL2
BMAL2 heterodimer activates the transcription of SERPINE1
PAI1 and BHLHE40
DEC1.
Field of research: Epigenetics, Signal Transduction, Metabolism, Cardiovascular, Neuroscience
Storage conditions: PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20°C for 12 months(Avoid repeated freeze
thaw cycles.)
Applications: ELISA, WB, IP, IF
Dilution: WB: 1:500-1:2000; IP: 1:200-1:1000; IF: 1:20-1:200
Target: CLOCK
Purification: Immunogen affinity purified
Reactivity: Human, Mouse, Rat

222.50 € 222.5 EUR 222.50 € VAT Excluded

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