WDR5 (D9E1I) Rabbit mAb #13105
- WB
- ChIP
- C&R
Supporting Data
| REACTIVITY | H M R Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 37 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- ChIP-Chromatin Immunoprecipitation
- C&R-CUT & RUN
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
- Mk-Monkey
Product Information
Product Usage Information
For optimal ChIP 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.
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Chromatin IP | 1:50 |
| Chromatin IP-seq | 1:50 |
| CUT&RUN | 1:50 |
Storage
Protocol
Specificity / Sensitivity
Species Reactivity:
Source / Purification
Background
WDR5 is a core subunit of all SET1/MLL histone methyltransferase complexes and is required for proper complex assembly and histone methyltransferase activity (7). It functions as an effector of histone H3 Lys4 methylation by recruiting SET1/MLL complexes to target loci and presenting the histone H3 amino-terminal tail for methylation (8). WDR5 contains a classical seven-bladed WD40 propeller domain with a central cavity that binds to histone H3 Arg2 when symmetrically di-methylated (H3Arg2Me2-S) by arginine methyltransferases PRMT5 and PRMT7 (8). WDR5 binding to H3Arg2Me2-S results in increased recruitment of SET1/MLL complexes and methylation of histone H3 Lys4 at gene promoters and distal regulatory sites. In contrast, asymmetric di-methylation of histone H3 Arg2 (H3Arg2Me2-A) by PRMT6 reduces WDR5 binding and results in decreased recruitment of SET1/MLL complexes and reduced histone H3 Lys4 methylation (8). Interestingly, the H3Arg2Me2-S binding pocket of WDR5 also interacts with the SET domains of SET1/MLL proteins with comparable affinity, setting up a potential competition for WDR5 binding that may act to regulate SET1/MLL recruitment and subsequent H3 Lys4 methylation (9-11). WDR5 is also a core subunit of the ATAC and MOF-NSL histone acetyltransferase complexes and the CHD8 chromatin-remodeling complex (12-14).
- Miller, T. et al. (2001) Proc Natl Acad Sci USA 98, 12902-7.
- Shilatifard, A. (2008) Curr Opin Cell Biol 20, 341-8.
- Tenney, K. and Shilatifard, A. (2005) J Cell Biochem 95, 429-36.
- Lee, J.H. and Skalnik, D.G. (2005) J Biol Chem 280, 41725-31.
- Lee, J.H. et al. (2007) J Biol Chem 282, 13419-28.
- Hughes, C.M. et al. (2004) Mol Cell 13, 587-97.
- Migliori, V. et al. (2012) Epigenetics 7, 815-22.
- Migliori, V. et al. (2012) Nat Struct Mol Biol 19, 136-44.
- Song, J.J. and Kingston, R.E. (2008) J Biol Chem 283, 35258-64.
- Patel, A. et al. (2008) J Biol Chem 283, 32162-75.
- Zhang, P. et al. (2012) Nucleic Acids Res 40, 4237-46.
- Wang, Y.L. et al. (2008) J Biol Chem 283, 33808-15.
- Cai, Y. et al. (2010) J Biol Chem 285, 4268-72.
- Thompson, B.A. et al. (2008) Mol Cell Biol 28, 3894-904.
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