Nucleosome, Recombinant Human, H2BK20ac dNuc, Biotinylated Description: Mononucleosomes assembled from recombinant human histones expressed in E. coli (two each of histones H2A,
H2B, H3 and H4; accession numbers: H2A-P04908; H2B-O60814; H3.1-P68431; H4-P62805) wrapped by 147 base pairs of 601 positioning sequence DNA. Histone H2B (created by a proprietary semi-synthetic method) contains acetyl-lysine at position 20. The nucleosome is the basic subunit of chromatin. The 601 sequence, identified by Lowary and Widom, is a 147-base pair sequence that has high affinity for histone octamers, is useful for nucleosome assembly, and contains a 5’ biotin-TEG group.
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Nucleosome, Recombinant Human, H2BK20ac dNuc Biotinylated Formulation: Nucleosome, Recombinant Human, H2BK20ac (27.4 μg protein weight, 50 μg DNA+protein) in μl 10 mM Tris HCl,
pH 7.5, 25 mM NaCl, 1 mM EDTA, 2 mM DTT, 20% glycerol. MW = 199,943.86 Da.
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Nucleosome, Recombinant Human, H2BK20ac dNuc,
Biotinylated Storage and Stability: Stable for six months at -80°C from date of receipt. For
best results, aliquot and avoid multiple freeze/thaws.
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Nucleosome, Recombinant Human, H2BK20ac dNuc,
Biotinylated Application Notes: Nucleosome, Recombinant Human, H2BK20ac dNucs are highly purified and are suitable for use as substrates in enzyme screening assays or for effector protein binding experiments. Nucleosome, Recombinant Human, H2BK20ac dNucs from EpiCypher does not
contain free DNA which could alter assayed activities.
| References: Lowary PT and J Widom (1998). J Mol Biol 276: 19-42.
Luger K et al (1999). Methods Mol Biol 119: 1-16.
| View technical datasheet for this product.  |
|  | Western Blot Data:Western Analysis of Nucleosome, Recombinant Human, H2BK20ac. Top Panel: Unmodified H3 (Lane 1) and H2BK20ac containing nucleosomes (Lane 2) were probed with an anti-H2BK20ac antibody and analyzed via ECL readout. Only the H2BK20ac sample produced a detectable signal. Bottom Panel: Detail from Coomassie stained gel showing unmodified nucleosomes (Lane 1) and H2BK20ac nucleosomes (Lane 2).
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 | Mass Spec Data:H2BK20ac protein analyzed by high resolution mass spectrometry. Expected mass = 13,815.95 Da. Determined mass = 13,816.70 Da.
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 | Protein Gel Data: Coomassie stained PAGE gel of proteins in
Nucleosome, Recombinant Human, H2BK20ac (1 μg) to demonstrate the purity of the histones in the preparation. Sizes of molecular weight markers and positions of the core histones (H2A, H2BK20ac, H3.1, and H4) are indicated.
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 | DNA Gel Data: Nucleosome, Recombinant Human, H2BK20ac run on a native PAGE gel and stained with ethidium bromide to visualize DNA. Lane 1: Free DNA (100 ng). Lane 2: Intact nucleosomes (400 ng).
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