STAT1 Monoclonal antibody

• Featured Product
• KD/KO Validated

STAT1 Monoclonal Antibody for WB, IHC, IF/ICC, ELISA

Host / Isotype

Mouse / IgG2a

Reactivity

human, mouse, rat and More (2)

Applications

WB, IHC, IF/ICC, IP, CoIP, RIP, ELISA

Conjugate

Unconjugated

Publications

33

CloneNo.

1F7C6

Cat no : 66545-1-Ig

Synonyms

Transcription factor ISGF-3 components p91/p84, STAT91, Signal transducer and activator of transcription 1-alpha/beta, ISGF 3, 1F7C6

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Validation Data Gallery

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  WB analysis using 66545-1-Ig

  Various lysates were subjected to SDS PAGE followed by western blot with 66545-1-Ig (STAT1 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours. The membrane was stripped and reblotted with HRP-conjugated Alpha Tubulin Monoclonal antibody (HRP-66031) as loading control.

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  WB analysis using 66545-1-Ig

  Various cells were subjected to SDS PAGE followed by western blot with 66545-1-Ig (STAT1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours.

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  WB analysis using 66545-1-Ig

  Various lysates were subjected to SDS PAGE followed by western blot with 66545-1-Ig (STAT1 antibody) at dilution of 1:2000 incubated at room temperature for 1.5 hours.

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  WB analysis of HEK-293 using 66545-1-Ig

  WB result of STAT1 antibody (66545-1-Ig; 1:8000; incubated at room temperature for 1.5 hours) with sh-Control and sh-STAT1 transfected HEK-293 cells.

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  WB analysis of NIH/3T3 using 66545-1-Ig

  NIH/3T3 cells were subjected to SDS PAGE followed by western blot with 66545-1-Ig (STAT1 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours.

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  IHC staining of human ovary tumor using 66545-1-Ig

  Immunohistochemical analysis of paraffin-embedded human ovary tumor tissue slide using 66545-1-Ig (STAT1 antibody) at dilution of 1:400 (under 40x lens. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

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  IHC staining of human tonsillitis using 66545-1-Ig

  Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 66545-1-Ig (STAT1 antibody) at dilution of 1:400 (under 10x lens. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

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  IHC staining of human tonsillitis using 66545-1-Ig

  Immunohistochemical analysis of paraffin-embedded human tonsillitis tissue slide using 66545-1-Ig (STAT1 antibody) at dilution of 1:400 (under 40x lens. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

• 

  IHC staining of human ovary tumor using 66545-1-Ig

  Immunohistochemical analysis of paraffin-embedded human ovary tumor tissue slide using 66545-1-Ig (STAT1 antibody) at dilution of 1:400 (under 10x lens. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

• 

  IF Staining of HEK-293 using 66545-1-Ig

  Immunofluorescent analysis of (4% PFA) fixed HEK-293 cells using STAT1 antibody (66545-1-Ig, Clone: 1F7C6 ) at dilution of 1:800 and CoraLite®488-Conjugated AffiniPure Goat Anti-Mouse IgG(H+L).

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  IF Staining of HeLa using 66545-1-Ig

  Immunofluorescent analysis of (4% PFA) fixed IFN alpha treated HeLa cells using STAT1 antibody (66545-1-Ig, Clone: 1F7C6 ) at dilution of 1:800 and CoraLite®488-Conjugated Goat Anti-Mouse IgG(H+L) (SA00013-1), CL594-Phalloidin (red).

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Tested Applications

• Positive WB detected in: LNCaP cells, HEK-293 cells, NIH/3T3 cells, HeLa cells, MCF-7 cells, Jurkat cells, HSC-T6 cells
• Positive IHC detected in: human ovary tumor tissue, human tonsillitis tissue; Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
• Positive IF/ICC detected in: IFN alpha treated HeLa cells, HEK-293 cells

Recommended dilution

• Western Blot (WB): WB : 1:5000-1:10000
• Immunohistochemistry (IHC): IHC : 1:200-1:800
• Immunofluorescence (IF)/ICC: IF/ICC : 1:400-1:1600

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Published Applications

• KD/KO: See 2 publications below
• WB: See 31 publications below
• IHC: See 4 publications below
• IF: See 6 publications below
• IP: See 1 publications below
• CoIP: See 1 publications below
• RIP: See 1 publications below

Product Information

66545-1-Ig targets STAT1 in WB, IHC, IF/ICC, IP, CoIP, RIP, ELISA applications and shows reactivity with human, mouse, rat samples.

• Tested Reactivity: human, mouse, rat
• Cited Reactivity: human, mouse, rat, pig, rabbit
• Host / Isotype: Mouse / IgG2a
• Class: Monoclonal
• Type: Antibody
• Immunogen: STAT1 fusion protein Ag0199
• Full Name: signal transducer and activator of transcription 1, 91kDa
• Calculated Molecular Weight: 83 kDa
• Observed Molecular Weight: 84 kDa
• GenBank Accession Number: BC002704
• Gene Symbol: STAT1
• Gene ID (NCBI): 6772
• RRID: AB_2881907
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Protein A purification
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage. 20ul sizes contain 0.1% BSA.

Background Information

What is the molecular weight of STAT1? Are there any isoforms of STAT1? Is STAT1 post-translationally modified?

The molecular weight of STAT1 is 91 kDa for full-length STAT1α and 84 kDa for STAT1β, which is devoid of the C-terminal activation domain (PMID: 1502203). Phosphorylation of STAT1 regulates STAT1 activity. Phosphorylation of Tyr701 by Janus kinases (JAKs) triggers STAT1 homo- and hetero-dimerization with other STAT family members and also causes nuclear translocation, while phosphorylation of Ser727 is needed for full activation (PMID: 10851062). STAT1β lacks Ser727 and has therefore been considered to be inactive or acting in a dominant negative manner to STAT1α, although it has been further shown to be capable of transcription activation in vivo (PMID: 24710278).

 What is the subcellular localization of STAT1?

STAT1 is present in the cytoplasm and in the nucleus. Translocation of STAT1 from the cytoplasm to the nucleus is required for its regulation of gene expression and is dependent on phosphorylation (see above). However, low levels of unphosphorylated STAT1, often referred to as U-STAT1, can also be found in the nucleus, where U-STAT1 regulates the stability of heterochromatin by binding to chromatin in monomeric or dimeric states (PMID: 18840523).

 What is the tissue expression pattern of STAT1?

STAT1 is ubiquitously expressed.

Publications

Species	Application	Title
mouse	WB,IF	ACS Nano; Dual Inhibition of Endoplasmic Reticulum Stress and Oxidation Stress Manipulates the Polarization of Macrophages under Hypoxia to Sensitize Immunotherapy.; Authors - Mengshi Jiang
human	WB	PLoS Pathog; TRIM32 inhibits Venezuelan equine encephalitis virus infection by targeting a late step in viral entry; Authors - Yifan Xie
human	WB,IF	Int Immunopharmacol; Silencing SIRT1 promotes the anti-HBV action of IFN-α by regulating Pol expression and activating the JAK-STAT signaling pathway; Authors - Qinyan Tang
rat	WB	J Ethnopharmacol; 4D-DIA-based Proteomics Analysis Reveals the Protective Effects of Pidanjiangtang Granules in IGT Rat Model; Authors - Yu Xie
human	WB,IF	Biochim Biophys Acta Mol Cell Res; IL-17 promotes melanoma through TRAF2 as a scaffold protein recruiting PIAS2 and ELAVL1 to induce EPHA5; Authors - Junfeng Du ; KD Validated
human	WB	PLoS Negl Trop Dis; Comparative proteomics reveals Cryptosporidium parvum manipulation of the host cell molecular expression and immune response; Authors - Teng LiI