Revision 1

#14540Store at -20C

Cell Signaling Technology

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Support: 877-678-TECH (8324)

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For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB

REACTIVITY:

H M R Mk

SENSITIVITY:

Endogenous

MW (kDa):

32, 34

SOURCE:

Rabbit

UniProt ID:

#O95983

Entrez-Gene Id:

53615

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

MBD3 (N87) Antibody recognizes endogenous levels of total MBD3 protein isoforms MBD3A and MBD3B.

Species Reactivity:

Human, Mouse, Rat, Monkey

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Asn87 of human MBD3 protein. Antibodies are purified by protein A and peptide affinity chromatography.

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.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

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Revision 1
#14540

MBD3 (N87) Antibody

Western Blotting Image 1: MBD3 (N87) Antibody Expand Image
Western blot analysis of extracts from various cell lines using MBD3 (N87) Antibody.