Revision 1
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, IHC-P, IF-F, IF-IC, FC-FP

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

42

Source/Isotype:

Rabbit IgG

UniProt ID:

#P17947

Entrez-Gene Id:

6688

Product Information

Product Usage Information

This product is the carrier free version of product #2258. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

Formulation

Supplied in 1X PBS, BSA and Azide Free.

For standard formulation of this product see product #2258.

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

This antibody detects endogenous levels of total PU.1 protein. The antibody does not cross react with other Ets family members.

Species Reactivity:

Human, Mouse

Species predicted to react based on 100% sequence homology

Pig

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to the sequence of human PU.1 protein.

Background

PU.1 is a member of the Ets family of transcription factors and activates target genes through the purine-rich PU-box (1). PU.1 plays a pivotal role in the differentiation of myeloid cells and lymphocytes and is expressed in several hematopoietic cells including B lymphocytes, macrophages, neutrophils, mast cells, early erythroid cells, and megakaryocytes (1,2). The concentration of PU.1 is critical for both the determination of hematopoietic cell lineage and the regulation of differentiation versus stem cell proliferation (3,4). In addition, PU.1 activity is influenced by phosphorylation and interactions with other hematopoietic transcription factors. Phosphorylation of PU.1 at Ser146 by CK2 promotes binding to IRF4 and synergistic activation through the immunoglobulin κ 3' enhancer (5). Treatment of pro-B cells with IL-3 leads to phosphorylation of PU.1 at Ser140, resulting in increased PU.1 activity and activation of the anti-apoptotic gene MCL-1 (6). GATA1 binding blocks PU.1 activity during erythroid cell development (7). Overexpression of PU.1 resulting from proviral insertion during Friend virus infection can induce erythroleukemia, while reduced expression has been associated with acute myeloid leukemia (8).

  1. Lloberas, J. et al. (1999) Immunol Today 20, 184-9.
  2. Klemsz, M.J. et al. (1990) Cell 61, 113-24.
  3. Dahl, R. and Simon, M.C. (2003) Blood Cells Mol Dis 31, 229-33.
  4. DeKoter, R.P. and Singh, H. (2000) Science 288, 1439-41.
  5. Pongubala, J.M. et al. (1993) Science 259, 1622-5.
  6. Wang, J.M. et al. (2003) Mol Cell Biol 23, 1896-909.
  7. Zhang, P. et al. (1999) Proc Natl Acad Sci U S A 96, 8705-10.
  8. Moreau-Gachelin, F. et al. (1988) Nature 331, 277-80.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

WB: Western Blotting IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen) 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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

使用に関する制限

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Revision 1
#45150

PU.1 (9G7) Rabbit mAb (BSA and Azide Free)

Western Blotting Image 1: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Western blot analysis of extracts from RAW, THP1 and p388D1 cells using PU.1 (9G7) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 1: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded Non-Hodgkin's lymphoma using PU.1 (9G7) Rabbit mAb in the presence of control peptide (left) or PU.1 Blocking Peptide #1036 (right). Data were generated using the standard formulation of this product.
Immunohistochemistry Image 2: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded 4T1 syngeneic mouse tumor using PU.1 (9G7) Rabbit mAb #2258. Data were generated using the standard formulation of this product.
Immunofluorescence Image 1: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Confocal immunofluorescent analysis of normal mouse brain using PU.1 (9G7) Rabbit mAb (yellow) and GFAP (GA5) Mouse mAb (red). After blocking free secondary antibody binding sites with Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, the tissue was then labeled using ASC (D2W8U) Rabbit mAb (Mouse Specific) (Alexa 488 Conjugate) (green). Samples were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue). Data were generated using the standard formulation of this product.
Immunofluorescence Image 1: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Confocal immunofluorescent analysis of Raw cells using PU.1 (9G7) Rabbit mAb (green). Actin filaments were labeled with DY-554 phalloidin (red). Data were generated using the standard formulation of this product.
Flow Cytometry Image 1: PU.1 (9G7) Rabbit mAb (BSA and Azide Free) Expand Image
Flow cytometric analysis of MCF7 cells (blue) and THP1 cells (green) using PU.1 (9G7) Rabbit mAb (solid lines) or a concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody. Data were generated using the standard formulation of this product.