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SRP0128 Sigma

DNMT3a Active human

recombinant, expressed in baculovirus infected insect cells

Synonym: DNA (cytosine-5-)-methyltransferase 3A, DNA MTase HsaIIIA, DNMT3A2, M.HsaIIIA



Related Categories Cell Culture, DNMTs, Epigenetics, Growth Factors and Cytokines, Histone Modifying Enzymes,
recombinant   expressed in baculovirus infected insect cells
form   aqueous solution
mol wt   mol wt 128 kDa
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... DNMT3A(1788)



Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.

Preparation Note

Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70°C. Note: Enzyme is very sensitive to freeze/thaw cycles.

Physical form

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20 and 10% glycerol.

Biochem/physiol Actions

DNA methyltransferases are responsible for the addition of a methyl residue to the cytosine group of CpG dinucleotides. DNMT3A (DNA methyltransferase 3α) participates in the gene expression suppression by interacting with histone modifiers, such as polycomb-group (PcG). The interaction between these two proteins is thought to be implicated in cancer pathogenesis. During embryogenesis this enzyme is responsible for the formation of genomic methylation patterns and germ line development. Polymorphisms in this gene might serve as biomarkers to determine the prognosis of gastric cancer patients. Mutations in this gene are linked with Tatton-Brown-Rahman syndrome, an overgrowth syndrome characterized by unique facial appearance, intellectual disability, and increased height.

General description

DNMT3A (DNA methyltransferase 3α) is one of three (DNMT1, DNMT3a and DNMT3b) active forms of DNA methyltransferases. This gene is localized to human chromosome 2p23. DNMT3A is one of the three members of the DNMT3A family, of which DNMT3A and DNMT3B are catalytically active and DNMT3L is an inactive paralogue, which has regulatory actions in germ cells.

Price and Availability

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles


Modulators and Proteins for Methylation

DNA methyltransferases are a family of enzymes that catalyze the transfer of a methyl group to DNA. There are five related DNA cytosine-5-methyltransferases (DNMTs) that transfer a methyl group from ...
Savita Bagga, PhD.
BioFiles v7 n3, 2012, 7–9
Keywords: Gene expression, Methylations, PAGE

Peer-Reviewed Papers


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