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Product Pathways - Chromatin Regulation / Epigenetics

DEK (E4S5J) Rabbit mAb #29812

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29812S DEK (E4S5J) Rabbit mAb - 100 µl $377.00
$339.30
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VIEW COMPANION PRODUCTS HIDE COMPANION PRODUCTS
Application Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W Human, Mouse, Rat, Monkey Endogenous 50 Rabbit IgG
IHC-P

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IHC-P=Immunohistochemistry (Paraffin)

Specificity / Sensitivity

DEK (E4S5J) Rabbit mAb recognizes endogenous levels of total DEK protein. Non-specific staining has been observed by IHC in nerve cells.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human DEK protein.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using DEK (E4S5J) Rabbit mAb (upper) and α-Actinin (D6F6) XP® Rabbit mAb #6487 (lower). As expected, DEK is not expressed when knocked out in 293T cells (293T DEK KO).

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human colon carcinoma using DEK (E4S5J) Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human colon carcinoma using DEK (E4S5J) Rabbit mAb (left) compared to concentration matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (right).


IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human non-Hodgkin's lymphoma using DEK (E4S5J) Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded mouse prostate using DEK (E4S5J) Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human ovarian serous carcinoma using DEK (E4S5J) Rabbit mAb.


IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human gastric adenocarcinoma using DEK (E4S5J) Rabbit mAb.

Background

The protein product of the DEK oncogene is a nuclear phosphoprotein that is highly conserved among higher eukaryotic organisms and preferentially expressed in actively proliferating and/or malignant cells (1,2). DEK is an abundant, non-histone chromosomal protein that establishes and maintains heterochromatin by interacting with HP1a, enhancing HP1a binding to tri-methyl histone H3 Lys9 and stabilizing local tri-methyl histone H3 Lys9 levels (3). DEK localized to euchromatin represses transcription by interacting with transcription factors such as RelA/p65 (4). The DEK protein also associates with mRNA processing factors to regulate splicing and nuclear export (5,6).

The DEK proto-oncogene functions as a negative regulator of cellular differentiation, senescence, and apoptosis. DEK is translocated and/or over-expressed in a number of different cancers, including acute myeloid leukemia, breast cancer, cervical cancer, hepatocellular carcinoma, melanoma, and small cell lung cancer (1,2). In addition to the role of DEK in cancer biology, which is mainly related to its intracellular functions, extracellular DEK is implicated in the pathogenesis of autoimmune disorders (1,2). Circulating autoantibodies to DEK have been identified in the serum of patients with autoimmune diseases, including juvenile idiopathic arthritis, sarcoidosis, and systemic lupus erythematosus. DEK is secreted by human monocyte-derived macrophages and apoptotic T-lymphocytes and can act as a chemotactic, pro-inflammatory factor (7,8). Exogenous DEK can penetrate neighboring cells, and translocate to the nucleus to carry out its endogenous nuclear functions (9). IL-8 induced secretion of DEK from macrophages serves as a chemoattractant for peripheral blood leukocytes (7).

  1. Broxmeyer, H.E. et al. (2013) Stem Cells 31, 1447-53.
  2. Riveiro-Falkenbach, E. and Soengas, M.S. (2010) Clin Cancer Res 16, 2932-8.
  3. Kappes, F. et al. (2011) Genes Dev 25, 673-8.
  4. Sammons, M. et al. (2006) J Biol Chem 281, 26802-12.
  5. McGarvey, T. et al. (2000) J Cell Biol 150, 309-20.
  6. Soares, L.M. et al. (2006) Science 312, 1961-5.
  7. Mor-Vaknin, N. et al. (2006) Mol Cell Biol 26, 9484-96.
  8. Kappes, F. et al. (2008) Mol Cell Biol 28, 3245-57.
  9. Saha, A.K. et al. (2013) Proc Natl Acad Sci U S A 110, 6847-52.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!


 

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