| Cat.No.: | NUC-0104 |
| Product Name: | Recombinant Polynucleosomes (H3.1) |
| Product Overview: | Recombinant Polynucleosomes (H3.1), Human consists of 5000 bp of DNA (plasmid pG5E4) and two molecules each of histones H2A that includes amino acids 1-130 (end) (accession number NM_003512), H2B that includes amino acids 1-126 (end) (accession number NM_003518), H3.1 that includes amino acids 1-136 (end) (accession number NM_003529), and H4 that includes amino acids 1-103 (end) (accession number NM_003548). Plasmid pG5E4 contains 9 of 5S rDNA nucleosome positioning sequences of L. variegatus, 5 of GAL4 binding sites and E4 promoter. Every 5S rDNA can wrap one histone octamer to form a nucleosome. 5 of GAL4 binding sites and E4 promoter can wrap histone octamers to form dinucleosomes. A pG5E4 plasmid can warp histone octamers to form 11 nucleosomes. The recombinant protein is >95% pure by SDS-PAGE.. |
| Background: | In vivo, histones are wrapped around by DNA in chromatin. Therefore, nucleosomes are more physiologically relevant substrates than histones and histone-derived peptides for in vitro studies. More importantly, some histone methyltransferases are significantly more active, as well as specific, when using nucleosomal substrates in HMT assays, such as DOT1L and NSD family enzymes. Nucleosomes are also widely used in histone methyltransferase screening assays to identify small molecular inhibitors for drug discovery. |
| Applications: | Suitable for use in the study of enzyme kinetics, inhibitor screening, and selectivity profiling. |
| Storage: | Store at 4℃ if entire vial will be used within 2-4 weeks. Store at -20℃ or -80℃ for longer periods of time. Avoid multiple freeze-thaw cycles. |
| Appearance: | Liquid |
| Species: | Human |
| Formulation: | 10 mM Tris-HCl, pH 8.0, 1 mM EDTA, 2 mM DTT and 20% glycerol. |
| Expression System: | E. coli |
| Warning: | This product is for research use only. Not for use in diagnostic or therapeutic procedures. |
| Product Types | ||
| ◆ Nucleosomes | ||
| NUC-0007 | Recombinant Tetranucleosomes H3.3 | Inquiry |
| NUC-0008 | Recombinant Mononucleosomes H3.3 | Inquiry |
| ◆ Synthetic Peptides | ||
| SP-0009 | Histone H4 peptide (1-21), Biotin-labeled | Inquiry |
| SP-0010 | Histone H4 peptide (1-21) | Inquiry |
| SP-0012 | Histone H3 peptide (21-44), Biotin-labeled | Inquiry |
| Related Gene / Proteins | |||
| HIC1 | HIF1A | HIF1AN | HINFP |
| HIPK1 | HIPK2 | HIRA | Histone |
| Histone H1 | Histone H2A | Histone H2B | Histone H3 |
| Histone H4 | HIV-1 reverse transcriptase | ||
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