Human Phospho-STAT1 (Y701) Antibody

Recombinant Monoclonal Antibody
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Detection of Human Phospho-STAT1 (Y701) by Western Blot.
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Product Details
Citations (1)
Supplemental Products

Human Phospho-STAT1 (Y701) Antibody Summary

Species Reactivity
Detects human STAT1 when phosphorylated at Y701 in Western blots.
Recombinant Monoclonal Rabbit IgG Clone # 1086B
Protein A or G purified from cell culture supernatant
Phosphopeptide containing the human STAT1 Y701 site
Accession # NP009330
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
0.25 µg/mL
See below
Intracellular Staining by Flow Cytometry
0.25 µg/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Phospho-STAT1 (Y701) antibody by Western Blot. View Larger

Detection of Human Phospho-STAT1 (Y701) by Western Blot. Western blot shows lysates of Daudi human Burkitt's lymphoma cell line untreated (-) or treated (+) with Recombinant Human IFN-aA (Catalog # 11100-1) for 20 minutes. PVDF membrane was probed with 0.25 µg/mL of Rabbit Anti-Human Phospho-STAT1 (Y701) Monoclonal Antibody (Catalog # MAB2894) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-STAT1 (Y701) at approximately 90 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Intracellular Staining by Flow Cytometry Detection of Phospho-STAT1 (Y701) antibody in IFN alpha-treated Daudi Human Cell Line antibody by Flow Cytometry. View Larger

Detection of Phospho-STAT1 (Y701) in IFN alpha-treated Daudi Human Cell Line by Flow Cytometry. Daudi human Burkitt's lymphoma cell line was unstimulated (open histogram) or treated with 500 U/mL rhIFN-alpha for 20 minutes (filled histogram) and stained with Rabbit anti-Human Phospho-STAT1 (Y701) Molyclonal Antibody (Catalog # MAB2894) followed by APC-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with methanol. View our protocol for Staining Intracellular Molecules.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: STAT1

STAT1 (signal transducer and activator of transcription #1) is an 88 kDa member of the STAT family of cytoplasmic transcription factors. STAT members generally mediate cytokine, growth factor and hormone receptor signal transduction. STAT1 is associated with type I and II interferon signaling. All STATs contain an N-terminal oligomerization domain, a DNA-binding domain, and an SH2-association region. STAT1 is phosphorylated at Y701 by receptor-associated Janus kinases (JAKs) leading to STAT1 dimerization and subsequent translocation to the nucleus to activate gene transcription.

Long Name
Signal Transducer and Activator of Transcription 1
Entrez Gene IDs
6772 (Human); 20846 (Mouse)
Alternate Names
CANDF7; DKFZp686B04100; ISGF-3; ISGF-3,91kD; signal transducer and activator of transcription 1, 91kDa; signal transducer and activator of transcription-1; STAT1; STAT91

Product Datasheets

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Product Specific Notices

* Contains <0.1% Sodium Azide, which is not hazardous at this concentration according to GHS classifications. Refer to SDS for additional information and handling instructions.

Citation for Human Phospho-STAT1 (Y701) Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Galectin-3 promotes secretion of proteases that decrease epithelium integrity in human colon cancer cells
    Authors: S Li, DM Pritchard, LG Yu
    Cell Death & Disease, 2023-04-13;14(4):268.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot


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