Revision 3
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, IF-IC, FC-FP

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

95-100

Source/Isotype:

Rabbit IgG

UniProt ID:

#O75626

Entrez-Gene Id:

639

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:100
Immunofluorescence (Immunocytochemistry) 1:100
Flow Cytometry (Fixed/Permeabilized) 1:50

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.

For a carrier free (BSA and azide free) version of this product see product #89036.

Specificity / Sensitivity

Blimp-1/PRDI-BF1 (C14A4) Rabbit mAb detects endogenous levels of total Blimp-1/PRDI-BF1 protein.

Species Reactivity:

Human, Mouse

Species predicted to react based on 100% sequence homology

Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val90 of human PRDI-BF1 isoform 2.

Background

Blimp-1 (B lymphocyte-induced maturation protein) is a nuclear zinc-finger containing transcriptional repressor that is considered a master regulator of terminal B cell development (1). The human homolog, PRDI-BF1, was identified by its ability to bind to the PRDI element on the IFN-β promoter and can inhibit virus-mediated IFN-β production (2). Expression of Blimp-1 is sufficient to drive terminal differentiation of BCL1 lymphoma cells into antibody secreting plasma cells, increasing the expression of the cell surface marker Syndecan-1 (1). In the B cell lineage, Blimp-1 is specifically expressed in antibody-secreting cells including activated B and plasma cells. In addition, Blimp-1 has been found during macrophage differentiation (3) and in a subset of T cells (4,5), suggesting it may play a wider role in homeostasis and differentiation (6). Mechanistically, Blimp-1 is thought to act by recruiting chromatin-modifying enzymes including histone deacetylases (7) and methyltransferases (8,9). Target genes of Blimp-1 transcriptional repression with potential roles in differentiation include c-Myc (10), CIITA (11), Pax5 (12), Spi-B, and Id3 (13).

  1. Turner, C.A. et al. (1994) Cell 77, 297-306.
  2. Keller, A.D. and Maniatis, T. (1991) Genes Dev 5, 868-79.
  3. Chang, D.H. et al. (2000) Nat Immunol 1, 169-76.
  4. Kallies, A. et al. (2006) Nat Immunol 7, 466-74.
  5. Martins, G.A. et al. (2006) Nat Immunol 7, 457-65.
  6. Kallies, A. and Nutt, S.L. (2007) Curr Opin Immunol 19, 156-62.
  7. Yu, J. et al. (2000) Mol Cell Biol 20, 2592-603.
  8. Gyory, I. et al. (2004) Nat Immunol 5, 299-308.
  9. Ancelin, K. et al. (2006) Nat Cell Biol 8, 623-30.
  10. Lin, Y. et al. (1997) Science 276, 596-9.
  11. Chen, H. et al. (2007) Mol Immunol 44, 1461-70.
  12. Lin, K.I. et al. (2002) Mol Cell Biol 22, 4771-80.
  13. Shaffer, A.L. et al. (2006) Immunol Rev 210, 67-85.

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 IP: Immunoprecipitation IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized)

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.
U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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