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rabbit anti-STAT1 α polyclonal antibody 4141

$445.00

Antibody summary

  • Rabbit polyclonal to STAT1 α
  • Suitable for: ELISA,WB,ICC,IP,IHC-P,IF
  • Isotype: IgG
  • 100 µg
SKU: 4141parent Category: Tag:
Weight1 lbs
Dimensions9 × 5 × 2 in
host

rabbit

isotype

IgG

clonality

polyclonal

concentration

1 mg/mL

applications

ICC/IF, WB

reactivity

STAT1α

available sizes

100 µg

rabbit anti-STAT1 α polyclonal antibody 4141

antibody
Tested applications
WB,IHC,IHC,ICC/IF,ELISA,IP
Recommended dilutions
Immunoblotting : use a1:1,000 dilution.

Immunoprecipitation: use 2-4 ug antibody per sample.

Positive control: Whole cell lysate from HeLa cells, Jurkat cells, or A431 cells.
Immunogen
Peptide corresponding to aa 712-750 of human STAT1a.
Size and concentration
100µg and lot specific
Form
liquid
Storage Instructions
This antibody is stable for at least one (1) year at -20°C. Avoid multiple freeze- thaw cycles.
Storage buffer
PBS, pH 7.4.
Purity
peptide affinty purifcation
Clonality
polyclonal
Isotype
IgG
Compatible secondaries
goat anti-rabbit IgG, H&L chain specific, peroxidase conjugated, conjugated polyclonal antibody 9512
goat anti-rabbit IgG, H&L chain specific, biotin conjugated polyclonal antibody 2079
goat anti-rabbit IgG, H&L chain specific, FITC conjugated polyclonal antibody 7863
goat anti-rabbit IgG, H&L chain specific, Cross Absorbed polyclonal antibody 2371
goat anti-rabbit IgG, H&L chain specific, biotin conjugated polyclonal antibody, crossabsorbed 1715
goat anti-rabbit IgG, H&L chain specific, FITC conjugated polyclonal antibody, crossabsorbed 1720
Isotype control
Rabbit polyclonal - Isotype Control
target relevance
Protein names
Signal transducer and activator of transcription 1-alpha/beta (Transcription factor ISGF-3 components p91/p84)
Gene names
STAT1,STAT1
Protein family
Transcription factor STAT family
Mass
87335Da
Function
Signal transducer and transcription activator that mediates cellular responses to interferons (IFNs), cytokine KITLG/SCF and other cytokines and other growth factors (PubMed:9724754, PubMed:12855578, PubMed:12764129, PubMed:15322115, PubMed:34508746, PubMed:35568036, PubMed:23940278). Following type I IFN (IFN-alpha and IFN-beta) binding to cell surface receptors, signaling via protein kinases leads to activation of Jak kinases (TYK2 and JAK1) and to tyrosine phosphorylation of STAT1 and STAT2. The phosphorylated STATs dimerize and associate with ISGF3G/IRF-9 to form a complex termed ISGF3 transcription factor, that enters the nucleus (PubMed:28753426, PubMed:35568036). 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 (PubMed:28753426, PubMed:35568036). In response to type II IFN (IFN-gamma), STAT1 is tyrosine- and serine-phosphorylated (PubMed:26479788). It then forms a homodimer termed IFN-gamma-activated factor (GAF), migrates into the nucleus and binds to the IFN gamma activated sequence (GAS) to drive the expression of the target genes, inducing a cellular antiviral state (PubMed:8156998). Becomes activated in response to KITLG/SCF and KIT signaling (PubMed:15526160). May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4 (PubMed:19088846). Involved in food tolerance in small intestine: associates with the Gasdermin-D, p13 cleavage product (13 kDa GSDMD) and promotes transcription of CIITA, inducing type 1 regulatory T (Tr1) cells in upper small intestine (By similarity).
Subellular location
Cytoplasm. Nucleus. Note=Translocated into the nucleus upon tyrosine phosphorylation and dimerization, in response to IFN-gamma and signaling by activated FGFR1, FGFR2, FGFR3 or FGFR4 (PubMed:15322115). Monomethylation at Lys-525 is required for phosphorylation at Tyr-701 and translocation into the nucleus (PubMed:28753426). Translocates into the nucleus in response to interferon-beta stimulation (PubMed:26479788).
Structure
Isoform alpha homodimerizes upon IFN-gamma induced phosphorylation (PubMed:8605877, PubMed:28753426). Heterodimer with STAT2 upon IFN-alpha/beta induced phosphorylation (PubMed:8605877). The heterodimer STAT1:STAT2 forms the interferon-stimulated gene factor 3 complex (ISGF3) with IRF9 (By similarity). Interacts (phosphorylated at Ser-727) with PIAS1; the interaction results in release of STAT1 from its target gene (PubMed:9724754, PubMed:17897103). Interacts with IFNAR1; the interaction requires the phosphorylation of IFNAR1 at 'Tyr-466' (PubMed:9121453). Interacts with IFNAR2 (PubMed:9121453). Found in a complex with NMI and CREBBP/CBP (PubMed:9989503). Interacts with NMI which is required for CREBBP/CBP recruitment to the complex (PubMed:9989503). Interacts with PTK2/FAK1 (PubMed:11278462). Interacts with SRC (By similarity). Interacts with ERBB4 (phosphorylated) (PubMed:18721752). Interacts with PARP9 and DTX3L independently of IFN-beta or IFN-gamma-mediated STAT1 'Tyr-701' phosphorylation (PubMed:26479788). Interacts with histone acetyltransferase EP300/p300 in response to INF-gamma stimulation (PubMed:16257975, PubMed:26479788). Interacts with OTOP1 (By similarity). Interacts with IFNGR1 (PubMed:8156998). Interacts with STAT4 (PubMed:34508746).; (Microbial infection) Interacts with Sendai virus C', C, Y1 and Y2 proteins, preventing activation of ISRE and GAS promoter.; (Microbial infection) Interacts with Nipah virus P, V and W proteins preventing activation of ISRE and GAS promoter.; (Microbial infection) Interacts with Rabies virus phosphoprotein preventing activation of ISRE and GAS promoter.; (Microbial infection) Interacts with HCV core protein; the interaction results in STAT1 degradation.; (Microbial infection) Interacts with ebolavirus protein VP24.; (Microbial infection) Interacts with Epstein-Barr virus (EBV) tegument protein BGLF2; this interaction leads to STAT1 dephosphorylation and inhibition.
Post-translational modification
Deubiquitinated by USP13; leading to STAT1 stabilization and positive regulation of type I and type II IFN signalings.; Phosphorylated on tyrosine and serine residues in response to a variety of cytokines/growth hormones including IFN-alpha, IFN-gamma, PDGF and EGF (PubMed:28753426, PubMed:26479788). Activated KIT promotes phosphorylation on tyrosine residues and subsequent translocation to the nucleus (PubMed:21135090). Upon EGF stimulation, phosphorylation on Tyr-701 (lacking in beta form) by JAK1, JAK2 or TYK2 promotes dimerization and subsequent translocation to the nucleus (PubMed:7657660, PubMed:28753426). Growth hormone (GH) activates STAT1 signaling only via JAK2 (PubMed:7657660). Tyrosine phosphorylated in response to constitutively activated FGFR1, FGFR2, FGFR3 and FGFR4 (PubMed:17561467, PubMed:19088846). Phosphorylation on Ser-727 by several kinases including MAPK14, ERK1/2, CAMK2/CAMKII and CK2 in response to IFN-gamma stimulation, is required for maximal transcriptional activity (PubMed:7543024, PubMed:15322115, PubMed:16799645, PubMed:17897103). Phosphorylated on Ser-727 by CAMK2/CAMKII in response to IFN-gamma stimulation and calcium mobilization, promoting activity (PubMed:11972023, PubMed:16257975). Phosphorylated by CAMK2/CAMKII in response to IFN-beta stimulation and calcium mobilization in epithelial cells, promoting activity (PubMed:35568036). Phosphorylation on Ser-727 promotes sumoylation though increasing interaction with PIAS (PubMed:17897103). Phosphorylation on Ser-727 by PRKCD induces apoptosis in response to DNA-damaging agents (PubMed:15322115). Phosphorylated on tyrosine residues when PTK2/FAK1 is activated; most likely this is catalyzed by a SRC family kinase (PubMed:11278462). Dephosphorylation on tyrosine residues by PTPN2 negatively regulates interferon-mediated signaling (PubMed:12138178). 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 (PubMed:22065572). Phosphorylation at Tyr-701 and Ser-708 are mutually exclusive, phosphorylation at Ser-708 requires previous dephosphorylation of Tyr-701 (PubMed:22065572).; 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 (PubMed:27796300). 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 (PubMed:29858569).; Monomethylated at Lys-525 by SETD2; monomethylation is necessary for phosphorylation at Tyr-701, translocation into the nucleus and activation of the antiviral defense.; (Microbial infection) Ubiquitinated by Herpes simplex virus 2 E3 ubiquitin ligase ICP22.
Involvement in disease
DISEASE: Immunodeficiency 31B (IMD31B) [MIM:613796]: A disorder characterized by susceptibility to severe mycobacterial and viral infections. Affected individuals can develop disseminated infections and die of viral illness. Note=The disease is caused by variants affecting the gene represented in this entry.; DISEASE: Immunodeficiency 31A (IMD31A) [MIM:614892]: A form of Mendelian susceptibility to mycobacterial disease, a rare condition caused by impairment of interferon-gamma mediated immunity. It is characterized by predisposition to illness caused by moderately virulent mycobacterial species, such as Bacillus Calmette-Guerin (BCG) vaccine, environmental non-tuberculous mycobacteria, and by the more virulent Mycobacterium tuberculosis. Other microorganisms rarely cause severe clinical disease in individuals with susceptibility to mycobacterial infections, with the exception of Salmonella which infects less than 50% of these individuals. Clinical outcome severity depends on the degree of impairment of interferon-gamma mediated immunity. Some patients die of overwhelming mycobacterial disease with lepromatous-like lesions in early childhood, whereas others develop, later in life, disseminated but curable infections with tuberculoid granulomas. IMD31A has low penetrance, and affected individuals have relatively mild disease and good prognosis. IMD31A confers a predisposition to mycobacterial infections only, with no increased susceptibility to viral infections. Note=The disease is caused by variants affecting the gene represented in this entry.; DISEASE: Immunodeficiency 31C (IMD31C) [MIM:614162]: A primary immunodeficiency disorder with altered immune responses and impaired clearance of fungal infections, selective against Candida. It is characterized by persistent and/or recurrent infections of the skin, nails and mucous membranes caused by organisms of the genus Candida, mainly Candida albicans. Note=The disease is caused by variants affecting the gene represented in this entry. STAT1 mutations in patients with autosomal dominant candidiasis lead to defective responses of type 1 and type 17 helper T-cells, characterized by reduced production of interferon-alpha, interleukin-17, and interleukin-22. These cytokines are crucial for the antifungal defense of skin and mucosa (PubMed:21714643).
Target Relevance information above includes information from UniProt accession: P42224
The UniProt Consortium

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Western Blot Validation in Human and Mouse Cell Lines of (H) Hela, (J) Jurkat, (A) A431, (K) K562 and (N) 3T3/NIH
Loading: 15 µg of lysates per lane. Antibodies: STAT1 alpha 4141 (1 µg/mL), 1h incubation at RT in 5% NFDM/TBST.Secondary: Goat anti-rabbit IgG HRP conjugate at 1:10000 dilution.
benchmark-antibodies_anti-stat1alpha_antibody_4141_2.gif
Independent Antibody Validation (IAV) via Protein Expression Profile in Human Cell Lines
Loading: 15 µg of lysates per lane. Antibodies: STAT1 alpha 4141 (1 µg/mL), competitor antibody (2 µg/mL), and beta-actin (1.5 µg/mL), 1h incubation at RT in 5% NFDM/TBST.Secondary: Goat anti-rabbit IgG HRP conjugate at 1:10000 dilution.
benchmark-antibodies_anti-stat1alpha_antibody_4141_3.gif
Western Blot Validation in Mouse tissues
Loading: 15 µg of lysates per lane. Antibodies: STAT1 alpha 4141 (0.5 µg/mL), 1h incubation at RT in 5% NFDM/TBST.Secondary: Goat anti-rabbit IgG HRP conjugate at 1:10000 dilution.
benchmark-antibodies_anti-stat1alpha_antibody_4141_4.gif
Western Blot Validation in Rat Cell Line
Loading: 15 µg of lysates per lane. Antibodies: STAT1 alpha 4141 (1 µg/mL), 1h incubation at RT in 5% NFDM/TBST.Secondary: Goat anti-rabbit IgG HRP conjugate at 1:10000 dilution.
benchmark-antibodies_anti-stat1alpha_antibody_4141_5.gif
Immunofluorescence Validation of STAT1 alpha in Human Colon Tissue
Immunofluorescent analysis of 4% paraformaldehyde-fixed Human Colon Tissue labeling STAT1 alpha with 4141 at 20 µg/mL, followed by goat anti-rabbit IgG secondary antibody at 1/500 dilution (green) and DAPI staining (blue).
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Immunohistochemistry Validation of STAT1 alpha in Human Colon Tissue
Immunohistochemical analysis of paraffin-embedded Human Colon Tissue using anti-STAT1 alpha antibody (4141) at 2.5 µg/mL. Tissue was fixed with formaldehyde and blocked with 10% serum for 1 h at RT; antigen retrieval was by heat mediation with a citrate buffer (pH6). Samples were incubated with primary antibody overnight at 4C. A goat anti-rabbit IgG H&L (HRP) at 1/250 was used as secondary. Counter stained with Hematoxylin.
benchmark-antibodies_anti-stat1alpha_antibody_4141_7.jpg
Immunocytochemistry Validation of STAT1 alpha in Human HeLa Cells
Immunocytochemical analysis of HeLa cells using anti-STAT1 alpha antibody (4141) at 10 µg/mL. Cells was fixed with formaldehyde and blocked with 10% serum for 1 h at RT; antigen retrieval was by heat mediation with a citrate buffer (pH6). Samples were incubated with primary antibody overnight at 4C. A goat anti-rabbit IgG H&L (HRP) at 1/250 was used as secondary. Counter stained with Hematoxylin.

Publications

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Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.

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