Name :
Recombinant Human EED Protein (His & GST Tag)
Biological Activity :
Background :
EED is essential for regulating the repressive histone modification, histone 3 lysine 27 tri-methylation (H3K27me3) at many developmental genes. EED depletion significantly impeded erythroid maturation. EED depletion impaired the generation of hematopoietic stem cells. The function of EED within polycomb repressive complex 2 (PRC2) is mediated by a complex network of protein-protein interactions. The targeted disruption of EED’s reader function can lead to allosteric inhibition of PRC2 catalytic activity. Eed(Delta/Delta) HSPCs exhibited increased attachment to a major extracellular matrix component, fibronectin. Thus, EED deficiency increases proliferation on one side but promotes quiescence possibly by enhanced adhesion to the hematopoietic niche on the other, and these conflicting events would lead to abnormal differentiation and functional defect of Eed(Delta/Delta) HSPCs.
Biological Activity :
Testing in progress
Expression Host :
Human
Source :
Baculovirus-Insect Cells
Tag :
Protein Accession No. :
O75530-1
NCBI Gene ID :
Synonyms :
Synonyms :
embryonic ectoderm development
Amino Acid Sequence :
Molecular Weight :
The recombinant human EED/GST chimera consists of 678 amino acids and has a calculated molecular mass of 78 kDa. It migrates as an approximately 75-85 kDa band in SDS-PAGE under reducing conditions.
Purity :
> 93 % as determined by SDS-PAGE
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the human EED (O75530-1) (Met 1-Arg 441) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Buffer Solution :
Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 8.0, 2mM GSH, 10% glyPlease contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
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.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
HEED Protein, Human; WAIT1 Protein, Human EED 背景信息 EED is essential for regulating the repressive histone modification, histone 3 lysine 27 tri-methylation (H3K27me3) at many developmental genes. EED depletion significantly impeded erythroid maturation. EED depletion impaired the generation of hematopoietic stem cells. The function of EED within polycomb repressive complex 2 (PRC2) is mediated by a complex network of protein-protein interactions. The targeted disruption of EED’s reader function can lead to allosteric inhibition of PRC2 catalytic activity. Eed(Delta/Delta) HSPCs exhibited increased attachment to a major extracellular matrix component, fibronectin. Thus, EED deficiency increases proliferation on one side but promotes quiescence possibly by enhanced adhesion to the hematopoietic niche on the other, and these conflicting events would lead to abnormal differentiation and functional defect of Eed(Delta/Delta) HSPCs.
References & Citations :
Ura H, et al. (2011) Eed/Sox2 regulatory loop controls ES cell self-renewal through histone methylation and acetylation. EMBO J. 30(11): 2190-204.Montgomery ND, et al. (2007) Molecular and functional mapping of EED motifs required for PRC2-dependent histone methylation. J Mol Biol. 374(5): 1145-57.Jin Q, et al. (2003) The protein phosphatase-1 (PP1) regulator, nuclear inhibitor of PP1 (NIPP1), interacts with the polycomb group protein, embryonic ectoderm development (EED), and functions as a transcriptional repressor. J Biol Chem. 278(33): 30677-85.Showell C, et al. (2002) Identification of putative interaction partners for the Xenopus Polycomb-group protein Xeed. Gene. 291(1-2): 95-104.Rinchik EM, et al. (1993) N-ethyl-N-nitrosourea-induced prenatally lethal mutations define at least two complementation groups within the embryonic ectoderm development (eed) locus in mouse chromosome 7. Mamm Genome. 4(7): 349-53.
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