Invitrogen

Phospho-STAT1 (Tyr701) Monoclonal Antibody (KIKSI0803), PE-eFluor™ 610, eBioscience™

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Datasheet
Protocols
Questions & Answers
Tech Support

Product Details

61-9008-42

Applications
Tested Dilution
Publications

Flow Cytometry (Flow)

5 µL (0.06 µg)/test
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Product Specifications

Species Reactivity

Human

Published species

Not Applicable

Host/Isotype

Mouse / IgG1, kappa

Recommended Isotype Control

Mouse IgG1 kappa Isotype Control (P3.6.2.8.1), PE-eFluor™ 610, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

KIKSI0803

Conjugate

PE-eFluor™ 610 PE-eFluor™ 610 PE-eFluor™ 610

Excitation/Emission Max

565/606 nm View spectra spectra

Form

Liquid

Concentration

5 µL/Test

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2, with 0.2% BSA

Contains

0.09% sodium azide

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2815320

Product Specific Information

Description: This KIKSI0803 monoclonal antibody recognizes signal transducer and activator of transcription 1 (STAT1) when phosphorylated on tyrosine 701. STAT proteins are activated by ligand binding to receptors, such as cytokine receptors, that associate with Janus kinase (JAK) family members. Following their phosphorylation by JAKs, STAT proteins translocate to the nucleus where they bind to DNA and regulate transcription of specific genes in a cell type- and cytokine-specific manner. Phosphorylation of STAT1 on tyrosine 701 by JAK1 and JAK2 is essential for STAT1 dimer formation, nuclear translocation, and DNA binding activity. In response to IFN gamma stimulation, STAT1 homodimerizes or forms heterodimers with STAT3 that can bind to GAS (IFN gamma-activated sequence) promoter elements. In response to either IFN alpha or IFN beta stimulation, STAT1 forms a heterodimer with STAT2 that can bind ISRE (IFN-stimulated response element) promoter elements.

Specificity of this KIKSI0803 clone was determined by ELISA, flow cytometry, and western blotting.

Applications Reported: This KIKSI0803 antibody has been reported for use in intracellular staining followed by flow cytometric analysis.

Applications Tested: This KIKSI0803 antibody has been pre-diluted and tested by intracellular staining followed by flow cytometric analysis of stimulated normal human peripheral blood cells using Protocol C: Two-step protocol for Fixation/Methanol. Protocol A: Two-step protocol for intracellular (cytoplasmic) proteins and Protocol B: One-step protocol for intracellular (nuclear) proteins cannot be used. Please refer to "Staining Intracellular Antigens for Flow Cytometry, Protocol C: Two step protocol for Fixation/Methanol" located at www.thermofisher.com/flowprotocols . This may be used at 5 µL (0.06 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.

PE-eFluor 610 can be excited with laser lines from 488-561 nm and emits at 607 nm. We recommend using a 610/20 band pass filter (equivalent to PE-Texas Red). Please make sure that your instrument is capable of detecting this fluorochrome.

Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.

Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222-49) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333-57) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.

Excitation: 488-561 nm; Emission: 607 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.

Target Information

STAT1 (signal transducers and activators of transcription 1) is a member of the STAT family of transcription factors. STAT1 can be activated by interferon-alpha, interferon-gamma, EGF, PDGF and IL6. STAT1 is known to regulate several genes which are involved in cell growth, apoptosis, immune responses, and lipid metabolism. Further, STAT1 plays an important role in mediating cell viability in response to different cell stimuli and pathogen exposure. The STAT1 gene is located on chromosome 2. STAT1 is activated to regulate gene expression in response to extracellular signaling polypeptides including cytokines, interferons, and growth factors. After phosphorylation by JAK tyrosine kinases, STAT1 enters the nucleus to regulate transcription of many different genes. Among the seven STATs types, STAT1, STAT3, STAT5a, and STAT5b have a wide activation profile. STAT1 is activated by many different ligands including IFN family (IFN-Alpha, IFN-Beta, IFN-gamma and IL-10), gp130 family (IL-6, IL-11, LIF, CNTF, and G-CSF), and receptor tyrosine kinases (EGF, PDGF, and CSF-1). Two alternatively spliced transcript variants encoding distinct isoforms of STAT1 have been described.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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Bioinformatics

Protein Aliases: DKFZp686B04100; OTTHUMP00000165046; OTTHUMP00000205845; signal transducer and activator of transcription 1, 91kD; signal transducer and activator of transcription 1, 91kDa; Signal transducer and activator of transcription 1-alpha/beta; signal transducer and activator of transcription-1; STAT; STAT 1; STAT-1; stat1 alpha; Transcription factor ISGF-3 components p91/p84

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Gene Aliases: CANDF7; IMD31A; IMD31B; IMD31C; ISGF-3; STAT1; STAT91

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UniProt ID: (Human) P42224

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Entrez Gene ID: (Human) 6772

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Function(s)
RNA polymerase II core promoter proximal region sequence-specific DNA binding RNA polymerase II core promoter sequence-specific DNA binding transcription factor activity, RNA polymerase II core promoter sequence-specific double-stranded DNA binding transcription factor activity, sequence-specific DNA binding signal transducer activity tumor necrosis factor receptor binding protein binding enzyme binding nuclear hormone receptor binding identical protein binding protein homodimerization activity cadherin binding involved in cell-cell adhesion DNA-binding transcription factor
Process(es)
negative regulation of transcription from RNA polymerase II promoter negative regulation of endothelial cell proliferation positive regulation of mesenchymal cell proliferation negative regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis transcription, DNA-templated apoptotic process JAK-STAT cascade blood circulation macrophage derived foam cell differentiation negative regulation of angiogenesis tumor necrosis factor-mediated signaling pathway response to cytokine response to interferon-beta cellular response to interferon-beta regulation of apoptotic process negative regulation of I-kappaB kinase/NF-kappaB signaling response to peptide hormone endothelial cell migration positive regulation of transcription, DNA-templated positive regulation of transcription from RNA polymerase II promoter negative regulation by virus of viral protein levels in host cell positive regulation of smooth muscle cell proliferation response to cAMP defense response to virus interferon-gamma-mediated signaling pathway regulation of interferon-gamma-mediated signaling pathway type I interferon signaling pathway regulation of type I interferon-mediated signaling pathway renal tubule development cellular response to organic cyclic compound metanephric mesenchymal cell proliferation involved in metanephros development metanephric mesenchymal cell differentiation negative regulation of metanephric nephron tubule epithelial cell differentiation cell-cell adhesion
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