SUV420H2 Protein, Human, Recombinant (His & GST Tag)

Histone-lysine N-methyltransferase SUV42H2, also known as Suppressor of variegation 4-2 homolog 2, Su (var) 4-2 homolog 2, Lysine N-methyltransferase 5C, SUV42H2 and KMT5C, is nucleus protein that belongs to the histone-lysine methyltransferase family and Suvar4-2 subfamily. SUV42H2 is a histone methyltransferase that specifically trimethylates 'Lys-2' of histone H4. H4 'Lys-2' trimethylation represents a specific tag for epigenetic transcriptional repression. SUV42H2 mainly functions in pericentric heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin in these regions. SUV42H1 is targeted to histone H3 via its interaction with RB1 family proteins (RB1, RBL1 and RBL2) . FRAP experiments reveal that SUV42H2 is strongly associated with pericentric heterochromatin. The fraction of SUV42H2 captured and characterized by TAP/MS is a soluble fraction which may be in a stable association with HP1. SUV42H2 may be recruited to heterochromatin in association with HP1, and stably maintained at its heterochromatin sites in an HP1-independent fashion.

At Leading Biology, the biological activity of a recombinant protein is routinely measured using a bioassay, e.g. chemotaxis or cell proliferation assay, enzyme assay, or a functional ELISA. When a recombinant protein is an enzyme, specific activity is derived from an enzymatic assay. Each enzyme is tested for potency by cleavage of a substrate. We are in the process of updating the biological activity data. If you have any questions regarding this update, please feel free to contact our technical support team.

Lyophilized from sterile 50mM Tris, 0.5M NaCl, 30% Glycerol, 0.05% Teween, pH 8.0 Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

The recombinant human SUV420H2/GST chimera consists of 516 amino acids and has a calculated molecular mass of 60 kDa as estimated in SDS-PAGE under reducing conditions.

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

A DNA sequence encoding the amino acid sequence (Gly 2-Leu 280) of human SUV420H2 (NP_116090.2) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.