DNMT3B (E8A8A) XP® Rabbit mAb #57868
- WB
- IP
- IF
- F
- ChIP
- C&R
- C&T
Supporting Data
| REACTIVITY | H Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 96 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
- IF-Immunofluorescence
- F-Flow Cytometry
- ChIP-Chromatin Immunoprecipitation
- C&R-CUT & RUN
- C&T-CUT & Tag
Species Cross-Reactivity Key:
- H-Human
- Mk-Monkey
Product Information
Product Usage Information
For optimal ChIP and ChIP-seq results, use 10 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.
The CUT&RUN dilution was determined using CUT&RUN Assay Kit #86652.
The CUT&Tag dilution was determined using CUT&Tag Assay Kit #77552.
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:100 |
| Immunofluorescence (Immunocytochemistry) | 1:1600 |
| Flow Cytometry (Fixed/Permeabilized) | 1:50 - 1:200 |
| Chromatin IP | 1:50 |
| CUT&RUN | 1:50 |
| CUT&Tag | 1:50 |
Storage
For a carrier free (BSA and azide free) version of this product see product #84194.
Protocol
Specificity / Sensitivity
DNMT3B (E8A8A) XP® Rabbit mAb recognizes endogenous levels of total DNMT3B protein. This antibody does not cross-react with DNMT3A or DNMT1.
Species Reactivity:
Human, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human DNMT3B protein.
Background
Methylation of DNA at cytosine residues in mammalian cells is a heritable, epigenetic modification that is critical for proper regulation of gene expression, genomic imprinting and development (1,2). Three families of mammalian DNA methyltransferases have been identified: DNMT1, DNMT2, and DNMT3 (1,2). DNMT1 is constitutively expressed in proliferating cells and functions as a maintenance methyltransferase, transferring proper methylation patterns to newly synthesized DNA during replication. DNMT3A and DNMT3B are strongly expressed in embryonic stem cells with reduced expression in adult somatic tissues. DNMT3A and DNMT3B function as de novo methyltransferases that methylate previously unmethylated regions of DNA. DNMT2 is expressed at low levels in adult somatic tissues and its inactivation affects neither de novo nor maintenance DNA methylation. DNMT1, DNMT3A, and DNMT3B together form a protein complex that interacts with histone deacetylases (HDAC1, HDAC2, Sin3A), transcriptional repressor proteins (RB, TAZ-1), and heterochromatin proteins (HP1, SUV39H1) to maintain proper levels of DNA methylation and facilitate gene silencing (3-8). Improper DNA methylation contributes to diseased states such as cancer (1,2). Hypermethylation of promoter CpG islands within tumor suppressor genes correlates with gene silencing and the development of cancer. In addition, hypomethylation of bulk genomic DNA correlates with and may contribute to the onset of cancer. DNMT1, DNMT3A, and DNMT3B are overexpressed in many cancers, including acute and chronic myelogenous leukemias, in addition to colon, breast, and stomach carcinomas (9-12).
- Hermann, A. et al. (2004) Cell. Mol. Life Sci. 61, 2571-87.
- Turek-Plewa, J. and Jagodziński, P.P. (2005) Cell. Mol. Biol. Lett. 10, 631-47.
- Kim, G.D. et al. (2002) EMBO J. 21, 4183-95.
- Fuks, F. et al. (2001) EMBO J. 20, 2536-44.
- Geiman, T.M. et al. (2004) Biochem. Biophys. Res. Commun. 318, 544-55.
- Rountree, M.R. et al. (2000) Nat. Genet. 25, 269-77.
- Pradhan, S. and Kim, G.D. (2002) EMBO J. 21, 779-88.
- Fuks, F. et al. (2003) Nucleic Acids Res. 31, 2305-12.
- Mizuno, S. et al. (2001) Blood 97, 1172-9.
- Robertson, K.D. et al. (1999) Nucleic Acids Res. 27, 2291-8.
- Xie, S. et al. (1999) Gene 236, 87-95.
- Kanai, Y. et al. (2001) Int. J. Cancer 91, 205-12.
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