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88845
Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (BSA and Azide Free)
Primary Antibodies
Monoclonal Antibody
R
Recombinant

Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (BSA and Azide Free) #88845

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Filter:
  1. WB
  2. IHC
  3. IF
  4. F
Western blot analysis of extracts from HeLa cells, untreated or treated with interferon-α (IFN-α), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (upper) or Stat1 Antibody #9172 (lower). Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded non-Hodgkin lymphoma control (left) or λ phosphatase treated (right), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded non-Hodgkin lymphoma using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb in the presence of control peptide (left) or Phospho-Stat1 (Tyr701) Blocking Peptide #1038 (right). Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded stomach (chronic gastritis), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded HeLa cell pellets, untreated (left) or treated with Human Interferon-α1 (hIFN-α1) #8927 (right), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb on SignalSlide® HeLa -/+ IFNa IHC Controls #55861. Data were generated using the standard formulation of this product.
Confocal immunofluorescent analysis of HeLa cells, untreated (left) or IFNα-treated #9906 (right), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye). Data were generated using the standard formulation of this product.
Flow cytometric analysis of Jurkat cells, untreated (blue) or treated with IFN-α (100 ng/mL, 5 min; green), using Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (solid lines) or 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.

Supporting Data

REACTIVITY H M
SENSITIVITY Endogenous
MW (kDa) 84, 91
Source/Isotype Rabbit IgG

Application Key:

  • WB-Western Blot
  • IP-Immunoprecipitation
  • IHC-Immunohistochemistry
  • ChIP-Chromatin Immunoprecipitation
  • C&R-CUT&RUN
  • C&T-CUT&Tag
  • DB-Dot Blot
  • eCLIP-eCLIP
  • IF-Immunofluorescence
  • F-Flow Cytometry

Species 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

Product Usage Information

This product is the carrier free version of product #9167. 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 #9167.

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

Phospho-Stat1 (Tyr701) (58D6) Rabbit mAb (BSA and Azide Free) detects endogenous levels of Stat1 only when phosphorylated at tyrosine 701. The antibody detects phosphorylated tyrosine 701 of p91 Stat1 and also the p84 splice variant. It does not cross-react with the corresponding phospho-tyrosines of other Stat proteins.

Species Reactivity:

Human, Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr701 of human Stat1.

Background

The Stat1 transcription factor is activated in response to a large number of ligands (1) and is essential for responsiveness to IFN-α and IFN-γ (2,3). Phosphorylation of Stat1 at Tyr701 induces Stat1 dimerization, nuclear translocation, and DNA binding (4). Stat1 protein exists as a pair of isoforms, Stat1α (91 kDa) and the splice variant Stat1β (84 kDa). In most cells, both isoforms are activated by IFN-α, but only Stat1α is activated by IFN-γ. The inappropriate activation of Stat1 occurs in many tumors (5). In addition to tyrosine phosphorylation, Stat1 is also phosphorylated at Ser727 through a p38 mitogen-activated protein kinase (MAPK)-dependent pathway in response to IFN-α and other cellular stresses (6). Serine phosphorylation may be required for the maximal induction of Stat1-mediated gene activation.

Pathways

Explore pathways related to this product.

Limited Uses

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For Research Use Only. Not for Use in Diagnostic Procedures.
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