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STAT1 alpha/beta Rabbit Polyclonal Antibody

Usd: 315

Specification

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Catalog# ER31221

STAT1 alpha/beta Rabbit Polyclonal Antibody

Application

  • WB

  • IF-Cell

  • IHC-P

Reactivity

  • Human

  • Mouse

  • Rat

Conjugation

  • unconjugated

This product has been cited in peer reviewed publications, see list HERE

Overview

Product Name

STAT1 alpha/beta Rabbit Polyclonal Antibody

Antibody Type

Rabbit Polyclonal Antibody

Immunogen

Synthetic peptide within human Stat-1 alpha/beta 76-119

Species Reactivity

Human, Mouse, Rat

Validated Applications

WB, IF-Cell, IHC-P

Molecular Weight

Predicted band size: 87/83 kDa

Positive Control

Jurkat cell lysate, A431 cell lysate, SK-Br-3 cell lysate, RAW264.7 cell lysate, L6 cell lysate, PC-12 cell lysate, HepG2, MCF-7, Hela, human colon tissue, human spleen tissue, mouse colon tissue, mouse spleen tissue, rat colon tissue, rat spleen tissue.

Conjugation

unconjugated

RRID

AB_3069568

Product Features

Form

Liquid

Concentration

Storage Instructions

Shipped at 4℃. Store at +4℃ short term (1-2 weeks). It is recommended to aliquot into single-use upon delivery. Store at -20℃ long term.

Storage Buffer

1*PBS (pH7.4), 0.2% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.

Isotype

IgG

Purification Method

Immunogen affinity purified.

Application Dilution

  • WB

  • 1:20,000

  • IF-Cell

  • 1:200

  • IHC-P

  • 1:1,000

Target

Function

STAT1 is a member of the Signal Transducers and Activators of Transcription family of transcription factors. STAT1 is involved in upregulating genes due to a signal by either type I, type II, or type III interferons. In response to IFN-γ stimulation, STAT1 forms homodimers or heterodimers with STAT3 that bind to the GAS (Interferon-Gamma-Activated Sequence) promoter element; in response to either IFN-α or IFN-β stimulation, STAT1 forms a heterodimer with STAT2 that can bind the ISRE (Interferon-Stimulated Response Element) promoter element. The phosphorylated STATs dimerize and associate with ISGF3G/IRF-9 to form a complex termed ISGF3 transcription factor that enters the nucleus. ISGF3 binds to the IFN stimulated response element (ISRE) to activate the transcription of IFN-stimulated genes (ISG), which drive the cell in an antiviral state. In response to type II IFN (IFN-gamma), STAT1 is tyrosine- and serine-phosphorylated.

Background References

1. "Fibroblast growth factor receptor-induced phosphorylation of STAT1 at the Golgi apparatus without translocation to the nucleus." Citores L., Bai L., Sorensen V., Olsnes S. J. Cell. Physiol. 212:148-156(2007)

2. "Analysis of STAT1 activation by six FGFR3 mutants associated with skeletal dysplasia undermines dominant role of STAT1 in FGFR3 signaling in cartilage." Krejci P., Salazar L., Kashiwada T.A., Chlebova K., Salasova A., Thompson L.M., Bryja V., Kozubik A., Wilcox W.R. PLoS ONE 3:E3961-E3961(2008)

3. "A novel form of human STAT1 deficiency impairing early but not late responses to interferons." Kong X.F., Ciancanelli M., Al-Hajjar S., Alsina L., Zumwalt T., Bustamante J., Feinberg J., Audry M., Prando C., Bryant V., Kreins A., Bogunovic D., Halwani R., Zhang X.X., Abel L., Chaussabel D., Al-Muhsen S., Casanova J.L., Boisson-Dupuis S. Blood 116:5895-5906(2010)

Sequence Similarity

Belongs to the transcription factor STAT family.

Post-translational Modification

Phosphorylated on tyrosine and serine residues in response to a variety of cytokines/growth hormones including IFN-alpha, IFN-gamma, PDGF and EGF. Activated KIT promotes phosphorylation on tyrosine residues and subsequent translocation to the nucleus. Upon EGF stimulation, phosphorylation on Tyr-701 (lacking in beta form) by JAK1, JAK2 or TYK2 promotes dimerization and subsequent translocation to the nucleus. Growth hormone (GH) activates STAT1 signaling only via JAK2. Tyrosine phosphorylated in response to constitutively activated FGFR1, FGFR2, FGFR3 and FGFR4. Phosphorylation on Ser-727 by several kinases including MAPK14, ERK1/2 and CAMKII on IFN-gamma stimulation, regulates STAT1 transcriptional activity. Phosphorylation on Ser-727 promotes sumoylation though increasing interaction with PIAS. Phosphorylation on Ser-727 by PRKCD induces apoptosis in response to DNA-damaging agents. Phosphorylated on tyrosine residues when PTK2/FAK1 is activated; most likely this is catalyzed by a SRC family kinase. Dephosphorylation on tyrosine residues by PTPN2 negatively regulates interferon-mediated signaling. Upon viral infection or IFN induction, phosphorylation on Ser-708 occurs much later than phosphorylation on Tyr-701 and is required for the binding of ISGF3 on the ISREs of a subset of IFN-stimulated genes IKBKE-dependent. Phosphorylation at Tyr-701 and Ser-708 are mutually exclusive, phosphorylation at Ser-708 requires previous dephosphorylation of Tyr-701.; Sumoylated with SUMO1, SUMO2 and SUMO3. Sumoylation is enhanced by IFN-gamma-induced phosphorylation on Ser-727, and by interaction with PIAS proteins. Enhances the transactivation activity.; ISGylated.; Mono-ADP-ribosylated at Glu-657 and Glu-705 by PARP14; ADP-ribosylation prevents phosphorylation at Tyr-701. However, the role of ADP-ribosylation in the prevention of phosphorylation has been called into question and the lack of phosphorylation may be due to sumoylation of Lys-703.; Monomethylated at Lys-525 by SETD2; monomethylation is necessary for phosphorylation at Tyr-701, translocation into the nucleus and activation of the antiviral defense.

Subcellular Location

Cytoplasm, nucleus.

UNIPROT

SwissProt: P42224 Human

SwissProt: P42225 Mouse

Entrez Gene: 25124 Rat

Synonyms

CANDF7 antibody

DKFZp686B04100 antibody

ISGF 3 antibody

ISGF3 antibody

OTTHUMP00000163552 antibody

OTTHUMP00000165046 antibody

OTTHUMP00000165047 antibody

OTTHUMP00000205845 antibody

Signal transducer and activator of transcription 1 antibody

Signal transducer and activator of transcription 1, 91kDa antibody

Expand

Images

  • Western blot analysis of STAT1 alpha/beta on different lysates with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/20,000 dilution.<br /><br />Lane 1: Jurkat cell lysate<br />Lane 2: A431 cell lysate<br />Lane 3: SK-Br-3 cell lysate<br />Lane 4: RAW264.7 cell lysate<br />Lane 5: L6 cell lysate<br />Lane 6: PC-12 cell lysate<br /><br />Lysates/proteins at 15 µg/Lane.<br /><br />Predicted band size: 87/83 kDa<br />Observed band size: 87/83 kDa<br /><br />Exposure time: 25 seconds; ECL: K1801;<br /><br />4-20% SDS-PAGE gel.<br /><br />Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/20,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (<a href="/products/HA1001" style="font-weight: bold;text-decoration: underline;">HA1001</a>) at 1/50,000 dilution was used for 1 hour at room temperature.

    Western blot analysis of STAT1 alpha/beta on different lysates with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/20,000 dilution.

    Lane 1: Jurkat cell lysate
    Lane 2: A431 cell lysate
    Lane 3: SK-Br-3 cell lysate
    Lane 4: RAW264.7 cell lysate
    Lane 5: L6 cell lysate
    Lane 6: PC-12 cell lysate

    Lysates/proteins at 15 µg/Lane.

    Predicted band size: 87/83 kDa
    Observed band size: 87/83 kDa

    Exposure time: 25 seconds; ECL: K1801;

    4-20% SDS-PAGE gel.

    Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ER31221) at 1/20,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.

  • ICC staining Stat-1α/β in HepG2 cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

    ICC staining Stat-1α/β in HepG2 cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

  • ICC staining Stat-1α/β in MCF-7 cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

    ICC staining Stat-1α/β in MCF-7 cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

  • ICC staining Stat-1α/β in Hela cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

    ICC staining Stat-1α/β in Hela cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.

  • Immunohistochemical analysis of paraffin-embedded human colon tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded human colon tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded human spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded human spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded mouse colon tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded mouse colon tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded mouse spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded mouse spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded rat colon tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded rat colon tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded rat spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution.<br /><br />The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH<sub>2</sub>O and PBS, and then probed with the primary antibody (<a href="/products/ER31221" style="font-weight: bold;text-decoration: underline;">ER31221</a>) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

    Immunohistochemical analysis of paraffin-embedded rat spleen tissue with Rabbit anti-STAT1 alpha/beta antibody (ER31221) at 1/1,000 dilution.

    The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER31221) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

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