Product: Phospho-PER2 (Ser662) Antibody
Catalog: AF4301
Description: Rabbit polyclonal antibody to Phospho-PER2 (Ser662)
Application: WB IHC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Horse, Rabbit, Dog, Chicken
Mol.Wt.: 137kDa; 137kD(Calculated).
Uniprot: O15055
RRID: AB_2844380

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 100ul $350 In stock
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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Pig(90%), Horse(90%), Rabbit(89%), Dog(89%), Chicken(80%)
Clonality:
Polyclonal
Specificity:
Phospho-PER2 (Ser662) Antibody detects endogenous levels of PER2 only when phosphorylated at Ser662.
RRID:
AB_2844380
Cite Format: Affinity Biosciences Cat# AF4301, RRID:AB_2844380.
Conjugate:
Unconjugated.
Purification:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

Circadian clock protein PERIOD 2; FASPS; FASPS1; hPER 2; hPER2; KIAA0347; OTTHUMP00000164476; PER 2; PER2; PER2_HUMAN; Period 2; Period 2 isoform 1; Period circadian clock 2; Period circadian protein 2; Period circadian protein homolog 2; Period homolog 2 (Drosophila); Period homolog 2; Period, Drosophila, homolog of, 2; Period2;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
O15055 PER2_HUMAN:

Widely expressed. Found in heart, brain, placenta, lung, liver, skeleatal muscle, kidney and pancreas. High levels in skeletal muscle and pancreas. Low levels in lung. Isoform 2 is expressed in keratinocytes (at protein level).

Sequence:
MNGYAEFPPSPSNPTKEPVEPQPSQVPLQEDVDMSSGSSGHETNENCSTGRDSQGSDCDDSGKELGMLVEPPDARQSPDTFSLMMAKSEHNPSTSGCSSDQSSKVDTHKELIKTLKELKVHLPADKKAKGKASTLATLKYALRSVKQVKANEEYYQLLMSSEGHPCGADVPSYTVEEMESVTSEHIVKNADMFAVAVSLVSGKILYISDQVASIFHCKRDAFSDAKFVEFLAPHDVGVFHSFTSPYKLPLWSMCSGADSFTQECMEEKSFFCRVSVRKSHENEIRYHPFRMTPYLVKVRDQQGAESQLCCLLLAERVHSGYEAPRIPPEKRIFTTTHTPNCLFQDVDERAVPLLGYLPQDLIETPVLVQLHPSDRPLMLAIHKKILQSGGQPFDYSPIRFRARNGEYITLDTSWSSFINPWSRKISFIIGRHKVRVGPLNEDVFAAHPCTEEKALHPSIQELTEQIHRLLLQPVPHSGSSGYGSLGSNGSHEHLMSQTSSSDSNGHEDSRRRRAEICKNGNKTKNRSHYSHESGEQKKKSVTEMQTNPPAEKKAVPAMEKDSLGVSFPEELACKNQPTCSYQQISCLDSVIRYLESCNEAATLKRKCEFPANVPALRSSDKRKATVSPGPHAGEAEPPSRVNSRTGVGTHLTSLALPGKAESVASLTSQCSYSSTIVHVGDKKPQPELEMVEDAASGPESLDCLAGPALACGLSQEKEPFKKLGLTKEVLAAHTQKEEQSFLQKFKEIRKLSIFQSHCHYYLQERSKGQPSERTAPGLRNTSGIDSPWKKTGKNRKLKSKRVKPRDSSESTGSGGPVSARPPLVGLNATAWSPSDTSQSSCPAVPFPAPVPAAYSLPVFPAPGTVAAPPAPPHASFTVPAVPVDLQHQFAVQPPPFPAPLAPVMAFMLPSYSFPSGTPNLPQAFFPSQPQFPSHPTLTSEMASASQPEFPSRTSIPRQPCACPATRATPPSAMGRASPPLFQSRSSSPLQLNLLQLEEAPEGGTGAMGTTGATETAAVGADCKPGTSRDQQPKAPLTRDEPSDTQNSDALSTSSGLLNLLLNEDLCSASGSAASESLGSGSLGCDASPSGAGSSDTSHTSKYFGSIDSSENNHKAKMNTGMEESEHFIKCVLQDPIWLLMADADSSVMMTYQLPSRNLEAVLKEDREKLKLLQKLQPRFTESQKQELREVHQWMQTGGLPAAIDVAECVYCENKEKGNICIPYEEDIPSLGLSEVSDTKEDENGSPLNHRIEEQT

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
90
Horse
90
Dog
89
Rabbit
89
Chicken
80
Bovine
78
Zebrafish
67
Sheep
0
Xenopus
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - O15055 As Substrate

Site PTM Type Enzyme
Phosphorylation
Ubiquitination
S53 Phosphorylation
S77 Phosphorylation
K113 Ubiquitination
S259 Phosphorylation
K384 Ubiquitination
K453 Ubiquitination
K539 Acetylation
K553 Acetylation
S566 O-Glycosylation
S580 O-Glycosylation
S627 Phosphorylation
T645 Phosphorylation
T649 Phosphorylation
T652 Phosphorylation
S653 O-Glycosylation
S662 O-Glycosylation
S662 Phosphorylation P48730 (CSNK1D) , P49674 (CSNK1E)
S665 Phosphorylation P48730 (CSNK1D) , P49674 (CSNK1E)
S668 O-Glycosylation
S668 Phosphorylation P49674 (CSNK1E) , P48730 (CSNK1D)
S671 O-Glycosylation
T734 O-Glycosylation
K744 Ubiquitination
S766 Phosphorylation
T774 Phosphorylation
T781 Phosphorylation
S782 Phosphorylation
S786 Phosphorylation
S810 Phosphorylation
T965 O-Glycosylation
T968 Phosphorylation
S977 Phosphorylation
S983 O-Glycosylation
S1105 Phosphorylation
S1108 Phosphorylation
S1109 Phosphorylation
K1184 Ubiquitination

Research Backgrounds

Function:

Transcriptional repressor 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 syndrome 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. PER1 and PER2 proteins transport CRY1 and CRY2 into the nucleus with appropriate circadian timing, but also contribute directly to repression of clock-controlled target genes through interaction with several classes of RNA-binding proteins, helicases and others transcriptional repressors. PER appears to regulate circadian control of transcription by at least three different modes. First, interacts directly with the CLOCK-ARTNL/BMAL1 at the tail end of the nascent transcript peak to recruit complexes containing the SIN3-HDAC that remodel chromatin to repress transcription. Second, brings H3K9 methyltransferases such as SUV39H1 and SUV39H2 to the E-box elements of the circadian target genes, like PER2 itself or PER1. The recruitment of each repressive modifier to the DNA seems to be very precisely temporally orchestrated by the large PER complex, the deacetylases acting before than the methyltransferases. Additionally, large PER complexes are also recruited to the target genes 3' termination site through interactions with RNA-binding proteins and helicases that may play a role in transcription termination to regulate transcription independently of CLOCK-ARTNL/BMAL1 interactions. Recruitment of large PER complexes to the elongating polymerase at PER and CRY termination sites inhibited SETX action, impeding RNA polymerase II release and thereby repressing transcriptional reinitiation. May propagate clock information to metabolic pathways via the interaction with nuclear receptors. Coactivator of PPARA and corepressor of NR1D1, binds rhythmically at the promoter of nuclear receptors target genes like ARNTL or G6PC. Directly and specifically represses PPARG proadipogenic activity by blocking PPARG recruitment to target promoters and thereby inhibiting transcriptional activation. Required for fatty acid and lipid metabolism, is involved as well in the regulation of circulating insulin levels. Plays an important role in the maintenance of cardiovascular functions through the regulation of NO and vasodilatatory prostaglandins production in aortas. Controls circadian glutamate uptake in synaptic vesicles through the regulation of VGLUT1 expression. May also be involved in the regulation of inflammatory processes. Represses the CLOCK-ARNTL/BMAL1 induced transcription of BHLHE40/DEC1 and ATF4. Negatively regulates the formation of the TIMELESS-CRY1 complex by competing with TIMELESS for binding to CRY1.

PTMs:

Acetylated. Deacetylated by SIRT1, resulting in decreased protein stability.

Phosphorylated by CSNK1E and CSNK1D. Phosphorylation results in PER2 protein degradation. May be dephosphorylated by PP1.

Ubiquitinated, leading to its proteasomal degradation. Ubiquitination may be inhibited by CRY1.

Subcellular Location:

Nucleus. Cytoplasm. Cytoplasm>Perinuclear region.
Note: Nucleocytoplasmic shuttling is effected by interaction with other circadian core oscillator proteins and/or by phosphorylation. Translocate to the nucleus after phosphorylation by CSNK1D or CSNK1E. Also translocated to the nucleus by CRY1 or CRY2. PML regulates its nuclear localization.

Nucleus>Nucleolus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Widely expressed. Found in heart, brain, placenta, lung, liver, skeleatal muscle, kidney and pancreas. High levels in skeletal muscle and pancreas. Low levels in lung. Isoform 2 is expressed in keratinocytes (at protein level).

Subunit Structure:

Homodimer. Component of the circadian core oscillator, which includes the CRY proteins, CLOCK or NPAS2, ARTNL/BMAL1 or ARTNL2/BMAL2, CSNK1D and/or CSNK1E, TIMELESS, and the PER proteins. Interacts with CLOCK-ARNTL/BMAL1 (off DNA).Interacts with ARNTL2/BMAL2. Interacts directly with PER1 and PER3, and through a C-terminal domain, with CRY1 and CRY2. Interacts, via its second PAS domain, with TIMELESS in vitro. Interacts with NFIL3. Different large complexes have been identified with different repressive functions. The core of PER complexes is composed of at least PER1, PER2, PER3, CRY1, CRY2, CSNK1D and/or CSNK1E. The large PER complex involved in the repression of transcriptional termination is composed of at least PER2, CDK9, DDX5, DHX9, NCBP1 and POLR2A (active). The large PER complex involved in the histone deacetylation is composed of at least HDAC1, PER2, SFPQ and SIN3A. The large PER complex involved in the histone methylation is composed of at least PER2, CBX3, TRIM28, SUV39H1 and/or SUV39H2; CBX3 mediates the formation of the complex. Interacts with SETX; the interaction inhibits termination of circadian target genes. Interacts with the nuclear receptors HNF4A, NR1D1, NR4A2, RORA, PPARA, PPARG and THRA; the interaction with at least PPARG is ligand dependent. Interacts with PML. Interacts (phosphorylated) with BTRC and FBXW11; the interactions trigger proteasomal degradation. Interacts with NONO and SFPQ. Interacts with SIRT1 and CAVIN3 (By similarity). Interacts with MAGEL2 (By similarity). Interacts with MAP1LC3B (By similarity). Interacts with HNF4A.

Research Fields

· Human Diseases > Infectious diseases: Viral > Herpes simplex infection.

· Human Diseases > Cancers: Overview > Transcriptional misregulation in cancer.

· Human Diseases > Cancers: Specific types > Acute myeloid leukemia.   (View pathway)

· Organismal Systems > Environmental adaptation > Circadian rhythm.   (View pathway)

· Organismal Systems > Environmental adaptation > Circadian entrainment.

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