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Recombinant Proteins & Enzymes

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)

Catalog No: 81165 Format: 20 µg $415 Buy Now
Catalog No: 81865 Format: 1 mg $6,225 Buy Now
Expressed In: E. coli Protein Species: Human

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Expressed Protein Ligation

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) has been generated using the patented Expressed Protein Ligation (EPL) technology. EPL can be used to generate methylated, acetylated or phosphorylated histones. In EPL, the histone globular domain is ligated to a peptide that contains the N-terminal histone tail with the desired site-specific modification. The ligation reaction maintains the native histone bonds, and the resulting recombinant protein more closely mimics natural histones.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)Contents

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) (20 µg protein + 20 µg DNA) are supplied at a protein concentration of 0.53 mg/ml in 10 mM Tris-HCl pH 8.0, 1 mM EDTA, 2 mM DTT, and 20% glycerol.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)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.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)Application Notes

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) are suitable for use in the study of enzyme kinetics, inhibitor screening, and selectivity profiling.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)Protein Details

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) consist of a 167 bp of 601 DNA and two molecules each of histones H2A that includes amino acids 1-130 (end) (accession number NP_003503.1), H2B that includes amino acids 1-126 (end) (accession number NP_003509.1), H3.2 that includes amino acids 1-136 (end) (accession number NP_066403.2) with citrullination at arginine 2, arginine 8 and arginine 17, and H4 that includes amino acids 1-103 (end) (accession number NP_003539.1). All of these histones were expressed in E. coli cells. The molecular weight of histone octamer is ~108 kDa. H3R2/8/17 citrul (Histone H3 citrullyl Arg2/8/17) protein is generated using expressed protein ligation (EPL) technology. Truncated human Histone H3.2 is produced in E. coli and purified using FPLC. The purified protein is subsequently ligated to an N-terminal histone tail peptide containing citrulline 2/8/17 via a native peptide bond.

 
Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) SDS PAGE gel

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) SDS PAGE gel
13% SDS-PAGE gel, stained with Coomassie blue.
Purity: ≥ 92%

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) DNA gel

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) DNA gel
Mononucleosomes H3R2/8/17 citrul were run on a 2% agarose gel and stained with ethidium bromide. Lane 1: DNA marker. Lane 2: Intact mononucleosome H3R2/8/17 citrul Lane 3: 601 DNA. Intact mononucleosome H3R2/8/17 citrul migrated higher than free 601 DNA. The agarose gel result shows almost all of 601 DNA wraps histone octamers to form nucleosomes.

Mass Spec analysis for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)

Mass Spec analysis for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)
Histone H3R2/8/17 citrul (EPL) protein was analyzed by ESI-TOF mass spectrometry. Expected mass = 15229 Da. Determined mass = 15229 Da.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)Storage

Recombinant proteins in solution are temperature sensitive and must be stored at -80°C to prevent degradation. Avoid repeated freeze/thaw cycles and keep on ice when not in storage.

for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)Guarantee

This product is for research use only and is not for use in diagnostic procedures. This product is guaranteed for 6 months from date of arrival.

 

Technical Data Sheet

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)
 

Data Thumbnails

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) SDS PAGE gel

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) SDS PAGE gel
(Click to enlarge and view details)

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) DNA gel

Recombinant Mononucleosomes H3R2/8/17 citrul (EPL) DNA gel
(Click to enlarge and view details)

Mass Spec analysis for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)

Mass Spec analysis for Recombinant Mononucleosomes H3R2/8/17 citrul (EPL)
(Click to enlarge and view details)