Cell Signaling Technology

Product Pathways - Chromatin Regulation

MeCP2 (D4F3) XP™ Rabbit mAb #3456

This XP™ monoclonal antibody was developed using our eXceptional Monoclonal Technology (XMT™).

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP IHC-P IF-IC H M R Mk Endogenous 75 Rabbit igG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  IF-IC=Immunofluorescence (Immunocytochemistry)
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey
Species cross-reactivity is determined by Western blot.

Protocols

Specificity / Sensitivity

MeCP2 (D4F3) XP™ Rabbit mAb detects endogenous levels of MeCP2 (both isoforms A and B). This antibody does not cross-react with other MBD proteins.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to the carboxy terminus of human MeCP2.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using MeCP2 (D4F3) XP™ Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human lung carcinoma using MeCP2 (D4F3) XP™ Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded mouse brain using MeCP2 (D4F3) XP™ Rabbit mAb in the presence of control peptide (left) and antigen-specific peptide (right).


IF-IC

IF-IC

Confocal immunofluorescent analysis of SH-SY5Y cells using MeCP2 (D4F3) XP™ Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red).

Background

Methyl-CpG-binding protein 2 (MeCP2) is the founding member of a family of methyl-CpG-binding domain (MBD) proteins that also includes MBD1, MBD2, MBD3, MBD4, MBD5 and MBD6 (1-3). Apart from MBD3, these proteins bind methylated cytosine residues in the context of the di-nucleotide 5´-CG-3´ to establish and maintain regions of transcriptionally inactive chromatin by recruiting a variety of co-repressor proteins (2). MeCP2 recruits histone deacetylases HDAC1 and HDAC2, and the DNA methyltransferase DNMT1 (4-6). MBD1 couples transcriptional silencing to DNA replication and interacts with the histone methyltransferases ESET and SUV39H1 (7,8). MBD2 and MBD3 co-purify as part of the NuRD (nucleosome remodeling and histone de-acetylation) co-repressor complex, which contains the chromatin remodeling ATPase Mi-2, HDAC1 and HDAC2 (9,10). MBD5 and MBD6 have recently been identified and little is known regarding their protein interactions. MBD proteins are associated with cancer and other diseases; MBD4 is best characterized for its role in DNA repair and MBD2 has been linked to intestinal cancer (11,12). Mutations in the MeCP2 gene cause the neurologic developmental disorder Rett Syndrome (13). MeCP2 protein levels are high in neurons, where it plays a critical role in multiple synaptic processes (14). In response to various physiological stimuli, MeCP2 is phosphorylated on Ser421 and regulates the expression of genes controlling dendritic patterning and spine morphogenesis (14). Disruption of this process in individuals with altered MeCP2 may cause the pathological changes seen in Rett Syndrome.

  1. Clouaire, T. and Stancheva, I. (2008) Cell Mol Life Sci 65, 1509-22.
  2. Hendrich, B. and Bird, A. (1998) Mol Cell Biol 18, 6538-47.
  3. Roloff, T.C. et al. (2003) BMC Genomics 4, 1.
  4. Nan, X. et al. (1998) Nature 393, 386-9.
  5. Jones, P.L. et al. (1998) Nat Genet 19, 187-91.
  6. Fuks, F. et al. (2003) J Biol Chem 278, 4035-40.
  7. Sarraf, S.A. and Stancheva, I. (2004) Mol Cell 15, 595-605.
  8. Fujita, N. et al. (2003) J Biol Chem 278, 24132-8.
  9. Zhang, Y. et al. (1999) Genes Dev 13, 1924-35.
  10. Wade, P.A. et al. (1999) Nat Genet 23, 62-6.
  11. Hendrich, B. et al. (1999) Nature 401, 301-4.
  12. Sansom, O.J. et al. (2003) Nat Genet 34, 145-7.
  13. Miltenberger-Miltenyi, G. and Laccone, F. (2003) Hum Mutat 22, 107-15.
  14. Zhou, Z. et al. (2006) Neuron 52, 255-69.

Application References

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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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