• Product name

    Anti-PER2 antibody - N-terminal
    See all PER2 primary antibodies
  • Description

    Rabbit polyclonal to PER2 - N-terminal
  • Host species

  • Tested applications

    Suitable for: WB, IHC-Pmore details
  • Species reactivity

    Reacts with: Mouse, Human
  • Immunogen

    Recombinant fragment within Human PER2 (N terminal). The exact sequence is proprietary.
    Database link: O15055

  • Positive control

    • WB: PER2-transfected HEK-293T whole cell lysate. IHC-P: Adult mouse retina tissue.



Our Abpromise guarantee covers the use of ab227727 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/5000 - 1/20000. Predicted molecular weight: 137 kDa.
IHC-P 1/100 - 1/1000.


  • Function

    Component of the circadian clock mechanism which is essential for generating circadian rhythms. Negative element in the circadian transcriptional loop. Influences clock function by interacting with other circadian regulatory proteins and transporting them to the nucleus. Negatively regulates CLOCK
    BMAL2-induced transactivation.
  • Tissue specificity

    Widely expressed. Found in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. High levels in skeletal muscle and pancreas. Low level in lung.
  • Involvement in disease

    Defects in PER2 are a cause of familial advanced sleep-phase syndrome (FASPS) [MIM:604348]. FASPS is characterized by very early sleep onset and offset. Individuals are 'morning larks' with a 4 hours advance of the sleep, temperature and melatonin rhythms.
  • Sequence similarities

    Contains 1 PAC (PAS-associated C-terminal) domain.
    Contains 2 PAS (PER-ARNT-SIM) domains.
  • Post-translational

    Phosphorylated by CSNK1E and CSNK1D. Phosphorylation results in PER2 protein degradation.
  • Cellular localization

    Nucleus. Cytoplasm. Mainly nuclear. Nucleocytoplasmic shuttling is effected by interaction with other circadian core oscillator proteins and/or by phosphorylation. Retention of PER1 in the cytoplasm occurs through PER1-PER2 heterodimer formation or by interaction with CSNK1E and/or phosphorylation which appears to mask the PER nuclear localization signal. Also translocated to the nucleus by CRY1 or CRY2.
  • Information by UniProt
  • Database links

  • Alternative names

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


  • Paraffin-embedded adult mouse retina tissue stained for PER2 (green) using ab227727 at 1/250 dilution in immunohistochemical analysis.

    Red: beta Tubulin 3, stained by a beta Tubulin 3 antibody at 1/250 dilution.

  • All lanes : Anti-PER2 antibody - N-terminal (ab227727) at 1/20000 dilution

    Lane 1 : HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate
    Lane 2 : PER2-transfected HEK-293T whole cell lysate

    Lysates/proteins at 15 µg per lane.

    Predicted band size: 137 kDa


ab227727 has not yet been referenced specifically in any publications.

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