概述
产品名称
STAT1 Mouse Monoclonal Antibody [G3-B11]
抗体类型
Mouse Monoclonal Antibody
免疫原
Recombinant protein within Human STAT1 aa 71-270 / 750.
种属反应性
Human
验证应用
WB, IF-Cell, IHC-P, IF-Tissue
分子量
Predicted band size: 87/83 kDa
阳性对照
Jurkat cell lysate, A431 cell lysate, HeLa cell lysate, A549 cell lysate, SK-Br-3 cell lysate, SK-MEL-28 cell lysate, MCF7 cell lysate, HT-29 cell lysate, HT-29, human breast cancer tissue, human spleen tissue.
偶联
unconjugated
克隆号
G3-B11
RRID
产品特性
形态
Liquid
存放说明
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.
存储缓冲液
1*PBS (pH7.4), 0.2% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
亚型
IgG2b
纯化方式
Protein A affinity purified.
应用稀释度
-
WB
-
1:1,000-1:2,000
-
IF-Cell
-
1:100-1:200
-
IHC-P
-
1:1,000
-
IF-Tissue
-
1:200
靶点
功能
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.
背景文献
1. Clark DN et al. Unique aspects of IFN-γ/STAT1 signaling in neurons. Immunol Rev. 2022 Oct
2. Butturini E et al. Redox Regulation of STAT1 and STAT3 Signaling. Int J Mol Sci. 2020 Sep
序列相似性
Belongs to the transcription factor STAT family.
翻译后修饰
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.
亚细胞定位
Cytoplasm, nucleus
UNIPROT
别名
Signal transducer and activator of transcription 1 91kD antibody
CANDF7 antibody
DKFZp686B04100 antibody
IMD31A antibody
IMD31B antibody
IMD31C antibody
ISGF 3 antibody
ISGF-3 antibody
OTTHUMP00000163552 antibody
OTTHUMP00000165046 antibody
展开Signal transducer and activator of transcription 1 91kD antibody
CANDF7 antibody
DKFZp686B04100 antibody
IMD31A antibody
IMD31B antibody
IMD31C antibody
ISGF 3 antibody
ISGF-3 antibody
OTTHUMP00000163552 antibody
OTTHUMP00000165046 antibody
OTTHUMP00000165047 antibody
OTTHUMP00000205845 antibody
Signal transducer and activator of transcription 1 91kDa antibody
Signal transducer and activator of transcription 1 antibody
Signal transducer and activator of transcription 1, 91kD antibody
Signal transducer and activator of transcription 1-alpha/beta antibody
STAT 1 antibody
Stat1 antibody
STAT1_HUMAN antibody
STAT91 antibody
Transcription factor ISGF 3 components p91 p84 antibody
Transcription factor ISGF-3 components p91/p84 antibody
折叠图片
-
Western blot analysis of STAT1 on different lysates with Mouse anti-STAT1 antibody (M1407-1) at 1/1,000 dilution.
Lane 1: Jurkat cell lysate
Lane 2: A431 cell lysate
Lane 3: HeLa cell lysate
Lane 4: A549 cell lysate
Lane 5: SK-Br-3 cell lysate
Lane 6: SK-MEL-28 cell lysate
Lane 7: MCF7 cell lysate
Lane 8: HT-29 cell lysate
Lysates/proteins at 15 µg/Lane.
Predicted band size: 87/83 kDa
Observed band size: 87/83 kDa
Exposure time: 1 minute 2 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 (M1407-1) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1/50,000 dilution was used for 1 hour at room temperature. -
Immunocytochemistry analysis of HT-29 cells labeling STAT1 with Mouse anti-STAT1 antibody (M1407-1) at 1/100 dilution.
Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Mouse anti-STAT1 antibody (M1407-1) at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Mouse IgG H&L (iFluor™ 488, HA1125) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
beta Tubulin (ET1602-4, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Rabbit IgG H&L (iFluor™ 594, HA1122) were used as the secondary antibody at 1/1,000 dilution. -
Immunohistochemical analysis of paraffin-embedded human breast cancer tissue with Mouse anti-STAT1 antibody (M1407-1) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 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 (M1407-1) 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 Mouse anti-STAT1 antibody (M1407-1) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 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 (M1407-1) 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. -
Immunofluorescence analysis of paraffin-embedded human breast cancer tissue labeling STAT1 with Mouse anti-STAT1 antibody (M1407-1) at 1/200 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 10% negative goat serum for 1 hour at room temperature, washed with PBS, and then probed with the primary antibody (M1407-1, green) at 1/200 dilution overnight at 4 ℃, washed with PBS. Goat Anti-Mouse IgG H&L (iFluor™ 488, HA1125) was used as the secondary antibody at 1/1,000 dilution. Nuclei were counterstained with DAPI (blue).
请注意: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
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