产品描述
*The optimal dilutions should be determined by the end user.
*Tips:
WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.
引用格式: Affinity Biosciences Cat# AF6300, RRID:AB_2835149.
展开/折叠
CANDF7; DKFZp686B04100; ISGF 3; ISGF3; OTTHUMP00000163552; OTTHUMP00000165046; OTTHUMP00000165047; OTTHUMP00000205845; Signal transducer and activator of transcription 1; Signal transducer and activator of transcription 1, 91kDa; Signal transducer and activator of transcription 1-alpha/beta; Stat1; STAT1_HUMAN; STAT91; Transcription factor ISGF-3 components p91/p84;
抗原和靶标
- P42224 STAT1_HUMAN:
- Protein BLAST With
- NCBI/
- ExPASy/
- Uniprot
MSQWYELQQLDSKFLEQVHQLYDDSFPMEIRQYLAQWLEKQDWEHAANDVSFATIRFHDLLSQLDDQYSRFSLENNFLLQHNIRKSKRNLQDNFQEDPIQMSMIIYSCLKEERKILENAQRFNQAQSGNIQSTVMLDKQKELDSKVRNVKDKVMCIEHEIKSLEDLQDEYDFKCKTLQNREHETNGVAKSDQKQEQLLLKKMYLMLDNKRKEVVHKIIELLNVTELTQNALINDELVEWKRRQQSACIGGPPNACLDQLQNWFTIVAESLQQVRQQLKKLEELEQKYTYEHDPITKNKQVLWDRTFSLFQQLIQSSFVVERQPCMPTHPQRPLVLKTGVQFTVKLRLLVKLQELNYNLKVKVLFDKDVNERNTVKGFRKFNILGTHTKVMNMEESTNGSLAAEFRHLQLKEQKNAGTRTNEGPLIVTEELHSLSFETQLCQPGLVIDLETTSLPVVVISNVSQLPSGWASILWYNMLVAEPRNLSFFLTPPCARWAQLSEVLSWQFSSVTKRGLNVDQLNMLGEKLLGPNASPDGLIPWTRFCKENINDKNFPFWLWIESILELIKKHLLPLWNDGCIMGFISKERERALLKDQQPGTFLLRFSESSREGAITFTWVERSQNGGEPDFHAVEPYTKKELSAVTFPDIIRNYKVMAAENIPENPLKYLYPNIDKDHAFGKYYSRPKEAPEPMELDGPKGTGYIKTELISVSEVHPSRLQTTDNLLPMSPEEFDEVSRIVGSVEFDSMMNTV
种属预测
score>80的预测可信度较高,可尝试用于WB检测。*预测模型主要基于免疫原序列比对,结果仅作参考,不作为质保凭据。
High(score>80) Medium(80>score>50) Low(score<50) No confidence
翻译修饰 - P42224 作为底物
Site | PTM Type | Enzyme | Source |
---|---|---|---|
S2 | Acetylation | Uniprot | |
S2 | Phosphorylation | Uniprot | |
R31 | Methylation | Uniprot | |
K40 | Ubiquitination | Uniprot | |
Y68 | Phosphorylation | Uniprot | |
Y106 | Phosphorylation | Uniprot | |
K114 | Methylation | Uniprot | |
K114 | Sumoylation | Uniprot | |
K114 | Ubiquitination | Uniprot | |
K138 | Ubiquitination | Uniprot | |
K140 | Ubiquitination | Uniprot | |
K145 | Ubiquitination | Uniprot | |
K152 | Ubiquitination | Uniprot | |
K161 | Ubiquitination | Uniprot | |
S162 | Phosphorylation | Uniprot | |
Y170 | Phosphorylation | Uniprot | |
K173 | Acetylation | Uniprot | |
K173 | Ubiquitination | Uniprot | |
K175 | Methylation | Uniprot | |
K175 | Ubiquitination | Uniprot | |
T184 | Phosphorylation | Uniprot | |
K193 | Sumoylation | Uniprot | |
K193 | Ubiquitination | Uniprot | |
K200 | Ubiquitination | Uniprot | |
K201 | Acetylation | Uniprot | |
K201 | Ubiquitination | Uniprot | |
K209 | Ubiquitination | Uniprot | |
K240 | Ubiquitination | Uniprot | |
K286 | Ubiquitination | Uniprot | |
K296 | Methylation | Uniprot | |
K296 | Ubiquitination | Uniprot | |
K298 | Ubiquitination | Uniprot | |
K350 | Ubiquitination | Uniprot | |
K359 | Ubiquitination | Uniprot | |
K361 | Ubiquitination | Uniprot | |
K366 | Methylation | Uniprot | |
K366 | Ubiquitination | Uniprot | |
T373 | Phosphorylation | Uniprot | |
K375 | Ubiquitination | Uniprot | |
K379 | Ubiquitination | Uniprot | |
K388 | Ubiquitination | Uniprot | |
K410 | Acetylation | Uniprot | |
K410 | Ubiquitination | Uniprot | |
K413 | Acetylation | Uniprot | |
T417 | Phosphorylation | Uniprot | |
K511 | Ubiquitination | Uniprot | |
K525 | Methylation | Uniprot | |
K525 | Ubiquitination | Uniprot | |
S532 | Phosphorylation | Uniprot | |
K544 | Ubiquitination | Uniprot | |
S583 | Phosphorylation | Uniprot | |
K592 | Ubiquitination | Uniprot | |
K636 | Ubiquitination | Uniprot | |
K637 | Methylation | Uniprot | |
K637 | Ubiquitination | Uniprot | |
S640 | Phosphorylation | Uniprot | |
K652 | Sumoylation | Uniprot | |
K652 | Ubiquitination | Uniprot | |
K665 | Methylation | Uniprot | |
K665 | Ubiquitination | Uniprot | |
Y668 | Phosphorylation | Uniprot | |
K673 | Ubiquitination | Uniprot | |
K679 | Sumoylation | Uniprot | |
K679 | Ubiquitination | Uniprot | |
K685 | Ubiquitination | Uniprot | |
K697 | Ubiquitination | Uniprot | |
T699 | Phosphorylation | Uniprot | |
Y701 | Phosphorylation | P52333 (JAK3) , P22455 (FGFR4) , P23458 (JAK1) , P22607 (FGFR3) , P00533 (EGFR) , O60674 (JAK2) , P12931 (SRC) | Uniprot |
K703 | Sumoylation | Uniprot | |
K703 | Ubiquitination | Uniprot | |
T704 | Phosphorylation | Uniprot | |
S708 | Phosphorylation | Uniprot | |
S710 | Phosphorylation | Uniprot | |
S715 | Phosphorylation | Uniprot | |
S727 | Phosphorylation | Q13554 (CAMK2B) , P49336 (CDK8) , Q05655 (PRKCD) , P68400 (CSNK2A1) , Q14164 (IKBKE) , Q15759 (MAPK11) , P19525 (EIF2AK2) , P27361 (MAPK3) , P28482 (MAPK1) , P45983 (MAPK8) , P45984 (MAPK9) , O75582 (RPS6KA5) , Q16539 (MAPK14) | Uniprot |
S740 | Phosphorylation | Uniprot | |
S745 | Phosphorylation | Uniprot | |
T749 | Phosphorylation | Uniprot |
研究背景
Signal transducer and transcription activator that mediates cellular responses to interferons (IFNs), cytokine KITLG/SCF and other cytokines and other growth factors. 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. 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. 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. Becomes activated in response to KITLG/SCF and KIT signaling. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4.
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.
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).
Isoform alpha homodimerizes upon IFN-gamma induced phosphorylation. Heterodimer with STAT2 upon IFN-alpha/beta induced phosphorylation. 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. Interacts with IFNAR1; the interaction requires the phosphorylation of IFNAR1 at 'Tyr-466'. Interacts with IFNAR2. Found in a complex with NMI and CREBBP/CBP. Interacts with NMI which is required for CREBBP/CBP recruitment to the complex. Interacts with PTK2/FAK1. Interacts with SRC (By similarity). Interacts with ERBB4 (phosphorylated). Interacts with PARP9 and DTX3L independently of IFN-beta or IFN-gamma-mediated STAT1 'Tyr-701' phosphorylation. Interacts with histone acetyltransferase EP300/p300 in response to INF-gamma stimulation. Interacts with OTOP1 (By similarity).
(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.
Belongs to the transcription factor STAT family.
研究领域
· Cellular Processes > Cell growth and death > Necroptosis. (View pathway)
· Environmental Information Processing > Signal transduction > Jak-STAT signaling pathway. (View pathway)
· Human Diseases > Infectious diseases: Parasitic > Leishmaniasis.
· Human Diseases > Infectious diseases: Parasitic > Toxoplasmosis.
· Human Diseases > Infectious diseases: Bacterial > Tuberculosis.
· Human Diseases > Infectious diseases: Viral > Hepatitis C.
· Human Diseases > Infectious diseases: Viral > Hepatitis B.
· Human Diseases > Infectious diseases: Viral > Measles.
· Human Diseases > Infectious diseases: Viral > Influenza A.
· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.
· Human Diseases > Infectious diseases: Viral > Herpes simplex infection.
· Human Diseases > Cancers: Overview > Pathways in cancer. (View pathway)
· Human Diseases > Cancers: Specific types > Pancreatic cancer. (View pathway)
· Human Diseases > Immune diseases > Inflammatory bowel disease (IBD).
· Organismal Systems > Immune system > Chemokine signaling pathway. (View pathway)
· Organismal Systems > Development > Osteoclast differentiation. (View pathway)
· Organismal Systems > Immune system > Toll-like receptor signaling pathway. (View pathway)
· Organismal Systems > Immune system > NOD-like receptor signaling pathway. (View pathway)
· Organismal Systems > Immune system > Th1 and Th2 cell differentiation. (View pathway)
· Organismal Systems > Immune system > Th17 cell differentiation. (View pathway)
· Organismal Systems > Endocrine system > Prolactin signaling pathway. (View pathway)
· Organismal Systems > Endocrine system > Thyroid hormone signaling pathway. (View pathway)
文献引用
Application: WB Species: Mice Sample:
Application: WB Species: Rat Sample: spinal cord
Application: WB Species: Mouse Sample: RAW264.7 cells
Application: WB Species: Mouse Sample:
Application: WB Species: Human Sample: breast cancer tissues
Application: WB Species: human Sample:
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