Cell Signaling Technology

Product Pathways - Wnt / Hedgehog / Notch

KLF4 Antibody #4038

Applications Reactivity Sensitivity MW (kDa) Source
W H M Mk Endogenous 65 Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human  M=Mouse  Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

KLF4 Antibody detects endogenous levels of total KLF4 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with synthetic peptide corresponding to amino acid sequence at the amino terminus of human KLF4. Antibodies are purified by Protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using KLF4 antibody.

Background

KLF4 is a member of the erythroid Kruppel-like factor (EKLF) multigene family that is highly expressed in the differentiating layers of the epidermis (1, 2). KLF4 plays a critical role in the differentiation of epithelial cells and is essential for normal gastric homeostasis (2,3). Depending on target gene, KLF4 can function as both a repressor and activator of transcription (4). Up-regulated in human squamous cell carcinoma of the head and neck and down-regulated in colorectal carcinoma, this protein may function as either a tumor suppressor or an oncogene depending on tumor type (5,6). The in vitro reprogramming of somatic cells to an embryonic-like state has been achieved by retroviral transduction of four factors: Oct-3/4, Sox2, c-Myc, and KLF4 (7). These induced, pluripotent stem cells (iPS) are of great therapeutic interest as they exhibit the key characteristics and growth properties of pluripotent stem cells (8,9).

  1. Yet, S.F. et al. (1998) J Biol Chem 273, 1026-31.
  2. Segre, J.A. et al. (1999) Nat Genet 22, 356-60.
  3. Katz, J.P. et al. (2005) Gastroenterology 128, 935-45.
  4. Evans, P.M. and Liu, C. (2008) Acta Biochim Biophys Sin (Shanghai) 40, 554-64.
  5. Foster, K.W. et al. (2005) Oncogene 24, 1491-500.
  6. Rowland, B.D. and Peeper, D.S. (2006) Nat Rev Cancer 6, 11-23.
  7. Takahashi, K. and Yamanaka, S. (2006) Cell 126, 663-76.
  8. Meissner, A. et al. (2007) Nat Biotechnol 25, 1177-81.
  9. Park, I.H. et al. (2008) Nature 451, 141-6.

Application References

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Companion Products

This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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