PerkinElmer
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Anti-Histone H3 (C-term) AlphaLISA Acceptor Beads, 250 µg

AlphaLISA® Acceptor beads designed to capture Histone H3 in a homogeneous AlphaLISA assay for DOT1L. Use in conjunction with biotinylated anti-H3K79me2 (AL148).

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For research use only. Not for use in diagnostic procedures.

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AL147C
250 µg
1420.00 USD
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AL147M
5 mg
7400.00 USD
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AL147R
25 mg
25900.00 USD
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Detail Information

Features:

  • No-wash epigenetic assay
  • Fully-validated mark specificity
  • Substrate flexibility (peptide, protein, histone, nucleosome substrates)
  • Easy-to-automate
  • Fast assay optimization

AlphaScreen® and AlphaLISA® are bead-based assay technologies used to study biomolecular interactions in a microplate format. The acronym "Alpha" stands for amplified luminescent proximity homogeneous assay. As the name implies, some of the key features of these technologies are that they are non-radioactive, homogeneous proximity assays. Binding of molecules captured on the beads leads to an energy transfer from one bead to the other, ultimately producing a luminescent/fluorescent signal. To understand how a signal is produced, one must begin with an understanding of the beads. AlphaScreen and AlphaLISA assays require two bead types: Donor beads and Acceptor beads. Each bead type contains a different proprietary mixture of chemicals, which are key elements of the AlphaScreen technology. Donor beads contain a photosensitizer, phthalocyanine, which converts ambient oxygen to an excited and reactive form of O2, singlet oxygen, upon illumination at 680 nm. Please note that singlet oxygen is not a radical; it is molecular oxygen with a single excited electron. Like other excited molecules, singlet oxygen has a limited lifetime prior to falling back to ground state. Within its 4 µsec half-life, singlet oxygen can diffuse approximately 200 nm in solution. If an Acceptor bead is within that proximity, energy is transferred from the singlet oxygen to thioxene derivatives within the Acceptor bead, subsequently culminating in light production at 520-620 nm (AlphaScreen) or at 615 nm (AlphaLISA). In the absence of an Acceptor bead, singlet oxygen falls to ground state and no signal is produced. This proximity-dependent chemical energy transfer is the basis for AlphaScreen's homogeneous nature.

Specifications

Antibody Conjugates Anti-H3 (C-term)
Automation Compatible Yes
Bead Type or Core Bead Type AlphaLISA Acceptor
Detection Method Alpha
Experimental Type In vitro
Product Brand Name AlphaLISA
Shipping Condition Blue Ice
Unit Size 250 µg
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Technical Note

AlphaLISA DOT1L Histone H3 Lysine-N-methyltransferase Assay

This AlphaLISA immunodetection assay measures the methylation at lysine 79 of nucleosomal Histone H3 using anti-histone H3 (C-ter) Acceptor Beads and a biotinylated anti-dimethyl-histone H3 lysine 79 (H3K79me2) antibody.

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