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#3087Store at -20C

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

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

35 to 38 mouse LAP. 45 to 49 human LAP.

SOURCE:

Rabbit

UniProt ID:

#P17676

Entrez-Gene Id:

1051

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

C/EBPbeta (LAP) Antibody detects endogenous levels of total C/EBPbeta, the p38 and p36 LAPs, but not the p20 LIP. This antibody does not cross-react with C/EBPalpha, -delta, -gamma, -epsilon or -zeta.

Species Reactivity:

Human, Mouse

Species predicted to react based on 100% sequence homology

Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the amino-terminal sequence of human C/EBPbeta. Antibodies are purified by protein A and peptide affinity chromatography.

Background

CCAAT/enhancer-binding proteins (C/EBPs) are a family of transcription factors critical for cellular differentiation, terminal functions, and inflammatory response (1). Six members of the family have been characterized (C/EBPα, -β, -γ, -δ, -ε, and -ζ) and are distributed in a variety of tissues (1). There are two forms of C/EBPβ, the 38 kDa liver activating protein (LAP) and the 20 kDa liver inhibitory protein (LIP) which may be products of alternative translation. The 38 kDa LAP protein is a transcriptional activator while LIP may act as an inhibitor of C/EBPβ transcriptional activity (2). Phosphorylation of C/EBPβ at distinct sites stimulates its transcriptional activity (3-5). Phosphorylation at serine 105 of rat C/EBPβ, a unique site only present in the rat sequence, seems essential for rat C/EBPβ activation (6).

  1. Lekstrom-Himes, J. and Xanthopoulos, K.G. (1998) J. Biol. Chem. 273, 28545-28548.
  2. Calkhoven, C.F. et al. (2000) Genes Dev. 14, 1920-1932.
  3. Wegner, M. et al. (1992) Science 256, 370-373.
  4. Trautwein, C. et al. (1993) Nature 364, 544-547.
  5. Nakajima, T. et al. (1993) Proc. Natl. Acad. Sci. USA 90, 2207-2211.
  6. Buck, M. et al. (1999) Mol. Cell 4, 1087-1092.

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

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
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