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Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

42

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q92519

Entrez-Gene Id:

28951

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:200

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.

Specificity / Sensitivity

TRIB2 (D8P2X) Rabbit mAb recognizes endogenous levels of total TRIB2 protein. This antibody does not cross-react with other TRIBBLES family proteins.

Species Reactivity:

Human, Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with recombinant protein corresponding to full-length human TRIB2 protein.

Background

TRIBBLES proteins belong to a small family of serine-threonine kinase-like proteins characterized by the presence of a variant protein kinase motif (lacking a canonical ATP binding site), a MEK1 binding site, and a C-terminal COP1 site that binds ubiquitin ligase. The tribbles gene was first identified and characterized in Drosophila genetic screens for genes that regulate cell division, gastrulation, and oogenesis (1-3). Research studies in Drosophila suggested that TRIBBLES functions to coordinate cell division by regulating turnover of the cell cycle protein String/cdc25. In contrast to the Drosophila genome, which contains a single tribbles gene, the genomes of mice and humans encode three known TRIBBLES proteins (TRIB1-3), which exhibit both distinct and overlapping patterns of expression and functions (4). For example, TRIB1 and TRIB2, but not TRIB3, were reported to promote degradation of the basic region-leucine zipper transcription factor C/EBPα, a function that appears to be conserved from flies to humans (5,6). TRIB2 is overexpressed in a subset of human AML patient samples, downregulated in leukemic cells undergoing proliferation arrest (7), and positively regulated by the NOTCH signaling pathway in T cells (8), while retroviral-mediated overexpression of TRIB2 in mice was shown to induce transplantable leukemia (7). These findings collectively suggest that TRIB2 functions as an oncogene in the mammalian hematopoietic system (9).

  1. Grosshans, J. and Wieschaus, E. (2000) Cell 101, 523-31.
  2. Seher, T.C. and Leptin, M. (2000) Curr Biol 10, 623-9.
  3. Mata, J. et al. (2000) Cell 101, 511-22.
  4. Dobens, L.L. and Bouyain, S. (2012) Dev Dyn 241, 1239-48.
  5. Dedhia, P.H. et al. (2010) Blood 116, 1321-8.
  6. Rørth, P. et al. (2000) Mol Cell 6, 23-30.
  7. Keeshan, K. et al. (2006) Cancer Cell 10, 401-11.
  8. Hannon, M.M. et al. (2012) Br J Haematol 158, 626-34.
  9. Liang, K.L. et al. (2013) Blood 121, 4265-70.

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 nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation

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

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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