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SRP0125 Sigma

LSD1 substrate (Di-methylated K4_H3)

≥90% (HPLC)

Synonym: HIST1H3E, Histone H3.1



Related Categories Epigenetics, Molecular Biology, Proteins and Peptides for Epigenetic Research, Substrates
assay   ≥90% (HPLC)
form   aqueous solution
mol wt   mol wt 2283 Da
concentration   0.55 mg/mL
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... HIST1H3E(8353)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


Study enzyme kinetics and screen small molecular inhibitors of LSD1 for drug discovery and HTS applications

Preparation Note

Thaw on ice. Upon first thaw, briefly spin tube to recover full content of the tube. Aliquot into single use aliquots. Store remaining product in aliquots at -70°C. Note: Avoid freeze/thaw cycles.

Physical form

Supplied as 500 uL of water solution at 200 uM concetration.

Biochem/physiol Actions

Histones have an important role in the organization and modification of chromatin. Histone cluster 1 H3 family member E (HIST1H3E) has a role in DNA synthesis during DNA replication and might also be involved in DNA repair. It is deposited at the chromatin at the time of DNA replication-associated chromatin assembly. During herpes simplex virus 1 (HSV-1) infection, differential movement of HIST1H3E is associated with the assembly of viral chromatin.

General description

Lysine-specific demethylase 1 (LSD1) acts on mono- and dimethylated histones and demethylates them. It has a role in embryogenesis, cell proliferation, spermatogenesis, adipogenesis and chromosomal segregation. Histone H3 peptide methylated at Lysine 4 is a substrate for LSD1. Histone cluster 1 H3 family member E (HIST1H3E) is a variant of histone 3 and is also called as the replicative histone. It is mainly expressed in the S-phase of the cell cycle. The gene encoding this protein is localized on human chromosome 6p22.

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
What is the sequence of the peptide for Product SRP0125, LSD1 substrate (Di-methylated K4_H3)?
Product SRP0125 is a 21 amino acid peptide. The sequence is: ARTK*QTARKSTGGKAPRKQLA, where K* is dimethylated lysine. The sequence of the peptide corresponds to the N-terminal (minus the methionine) portion of human Histone H3, with the K4 (lysine at position 4) dimethylated.
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Protocols & Articles


Histone Modification and Chromatin Remodeling

Gene expression is governed by complex mechanisms including transcription factor binding to DNA and coordinated changes in chromatin structure. The primary protein components of chromatin are the his...
Savita Bagga, PhD.
BioFiles v7 n3, 2012, 10–16
Keywords: Acetylations, Amplification, Cancer, Cell culture, Chromatin immunoprecipitation, Cloning, DNA purification, Diseases, Gene expression, Immunoprecipitation, Indicators, Methylations, Microarray Analysis, PAGE, Polymerase chain reaction, Polymerase chain reaction - quantitative, Polymorphisms, Purification, Sequencing, Transcription, Whole genome amplification

Peer-Reviewed Papers


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