R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.
MLLT3 (E5Z7U) Rabbit mAb #47577
Filter:
- WB
- IP
- IF
Supporting Data
| REACTIVITY | H M R Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 80 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
- IF-Immunofluorescence
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
- Mk-Monkey
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:50 |
| Immunofluorescence (Immunocytochemistry) | 1:6400 |
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.
Protocol
Specificity / Sensitivity
MLLT3 (E5Z7U) Rabbit mAb recognizes endogenous levels of total MLLT3 protein. This antibody detects 19 and 100 kDa proteins of unknown origin. MLLT3 (E5Z7U) Rabbit mAb nonspecifically labels cytoplasmic puncta.
Species Reactivity:
Human, Mouse, Rat, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala217 of human MLLT3 protein.
Background
The super elongation complex (SEC) plays a critical role in regulating RNA polymerase II (RNAPII) transcription elongation (1). The SEC is composed of AFF4, AFF1/AF4, MLLT3/AF9, and MLLT1/ENL proteins. The pathogenesis of mixed lineage leukemia is often associated with translocations of the SEC subunits joined to the histone H3 Lys4 methyltransferase mixed lineage leukemia (MLL) gene (1-4). The SEC has been found to contain RNAPII elongation factors eleven-nineteen lysine-rich leukemia (ELL), ELL2, and ELL3, along with the associated factors EAF1 and EAF2, which can increase the catalytic rate of RNAPII transcription in vitro, (1,2,5-7). The SEC positive transcription elongation factor b (P-TEFb) phosphorylates the carboxy-terminal domain within the largest subunit of RNAP II at Ser2 of the heptapeptide repeat. The SEC negative transcription elongation factors, DRB-induced stimulating factor (DSIF) and negative elongation factor (NELF), signal the transition from transcription initiation and pausing to productive transcription elongation (2,8-10). The chromosomal translocation of MLL with the members of the SEC leads to SEC recruitment to MLL regulated genes, such as the highly developmentally regulated HOX genes, implicating the misregulation and overexpression of these genes as underlying contributors to leukemogenesis (1,2,9,11).
- Mohan, M. et al. (2010) Nat Rev Cancer 10, 721-8.
- Lin, C. et al. (2010) Mol Cell 37, 429-37.
- Drexler, H.G. et al. (2004) Leukemia 18, 227-32.
- Smith, E. et al. (2011) Genes Dev 25, 661-72.
- Shilatifard, A. et al. (1996) Science 271, 1873-6.
- Shilatifard, A. et al. (1997) Proc Natl Acad Sci U S A 94, 3639-43.
- Miller, T. et al. (2000) J Biol Chem 275, 32052-6.
- Lin, C. et al. (2011) Genes Dev 25, 1486-98.
- Yokoyama, A. et al. (2010) Cancer Cell 17, 198-212.
- Cho, S. et al. (2010) Cell Cycle 9, 1697-705.
- Shah, N. and Sukumar, S. (2010) Nat Rev Cancer 10, 361-71.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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