Recombinant KMT2B (MLL4)-SET protein

Aliases: HRX2; MLL2; KMT2B; TRX2; WBP7; MLL1B; WBP-7; CXXC10
Catalog No: 31422 Format: 50 µg $450 Buy
Catalog No: 31822 Format: 1 mg $3,000 Buy

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Expressed In: E. coli Protein Species: Human

Contents

A representative Technical Data Sheet (TDS) is provided here. Please refer to the lot-specific TDS you will receive with your order for the lot-specific buffer contents and protein concentration.

Background

KMT2B (MLL4, Myeloid/lymphoid or mixed-lineage leukemia)-SET is a Trithorax-group protein that function collectively to promote gene expression. KMT2B (MLL4)-SET is a histone methyltransferase that methylates the Lysine 4 position of histone H3. In particular, the SET domain is a conserved C-terminal domain that characterizes proteins of the MLL (mixed-lineage leukemia) family. The SET domain is responsible for its histone methyltransferase activity which mediates chromatin modifications associated with epigenetic transcriptional activation. H3K4 methylation represents a specific epigenetic tag for transcriptional activation. KMT2B (MLL4)-SET plays a central role in β-globin locus transcription regulation by being recruited by Nfe2. KMT2B (MLL4)-SET is also required during the transcriptionally active period of oocyte growth for the establishment and/or maintenance of bulk H3K4 trimethylation (H3K4me3), global transcriptional silencing that precedes resumption of meiosis, oocyte survival and normal zygotic genome activation. KMT2B (MLL4)-SET may also be involved in human cancer as its expression has been shown to be upregulated in solid tumor cell lines.

Application Notes

This product was manufactured as described in Protein Details. Where possible, Active Motif has developed functional or activity assays for recombinant proteins. Additional characterization such as enzyme kinetic activity assays, inhibitor screening or other biological activity assays may not have been performed for every product. All available data for a given product is shown on the lot-specific Technical Data Sheet.

Protein Details

The peptide corresponding to amino acids 2551 - 2715 of the KMT2B (MLL4)-SET protein (accession number NP_055542.1) was expressed in E. coli. The peptide contains the SET domain of MLL4 that is responsible for methyltransferase activity. Recombinant KMT2B (MLL4)-SET contains an N-terminal GST-Tag with a molecular weight of 45.2 kDa.

 

Recombinant KMT2B (MLL4)-SET protein gel.
KMT2B (MLL4)-SET protein was run on a 10% SDS-PAGE gel and stained with Coomassie Blue.

Recombinant KMT2B (MLL4)-SET protein gel.
KMT2B (MLL4)-SET was incubated 4 equimolar components of the MLL4 complex (ASH2L, RBBP5, WDR5 and DPY30) for 2 hours at 4°C. All the components were pulled down by GST beads. The sample was run on an 10% SDS-PAGE gel and stained with Coomassie Blue.

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.

Guarantee

This product is guaranteed for 6 months from date of receipt.

This product is for research use only and is not for use in diagnostic procedures.