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Mouse Anti-STAT2 (AA 1-127) Recombinant Antibody (CBXS-5528) (CBMAB-S2736-CQ)


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Summary

Host Animal
Mouse
Specificity
Human
Clone
CBXS-5528
Antibody Isotype
IgG1
Application
IP, WB

Basic Information

Specificity
Human
Antibody Isotype
IgG1
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.

Formulations & Storage [For reference only, actual COA shall prevail!]

Format
Liquid
Buffer
Tissue culture supernatant
Storage
Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C long term. Avoid repeated freeze/thaw cycles.
Epitope
AA 1-127

Target

Full Name
STAT2
Introduction
The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. In response to interferon (IFN), this protein forms a complex with STAT1 and IFN regulatory factor family protein p48 (ISGF3G), in which this protein acts as a transactivator, but lacks the ability to bind DNA directly. Transcription adaptor P300/CBP (EP300/CREBBP) has been shown to interact specifically with this protein, which is thought to be involved in the process of blocking IFN-alpha response by adenovirus. Multiple transcript variants encoding different isoforms have been found for this gene.
Entrez Gene ID
6773
UniProt ID
P52630
Alternative Names
Signal Transducer And Activator Of Transcription 2; Signal Transducer And Activator Of Transcription 2, 113kDa; P113; Signal Transducer And Activator Of Transcription 2, 113kD; Interferon Alpha Induced Transcriptional Activator; STAT113; ISGF-3; IMD44
Function
Signal transducer and activator of transcription that mediates signaling by type I interferons (IFN-alpha and IFN-beta). Following type I IFN binding to cell surface receptors, Jak kinases (TYK2 and JAK1) are activated, leading to tyrosine phosphorylation of STAT1 and STAT2. The phosphorylated STATs dimerize, associate with IRF9/ISGF3G 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 interferon stimulated genes, which drive the cell in an antiviral state (PubMed:9020188, PubMed:23391734).
In addition, has also a negative feedback regulatory role in the type I interferon signaling by recruiting USP18 to the type I IFN receptor subunit IFNAR2 thereby mitigating the response to type I IFNs (PubMed:28165510).
Acts as a regulator of mitochondrial fission by modulating the phosphorylation of DNM1L at 'Ser-616' and 'Ser-637' which activate and inactivate the GTPase activity of DNM1L respectively (PubMed:26122121, PubMed:23391734, PubMed:9020188).
Biological Process
Cytokine-mediated signaling pathwayManual Assertion Based On ExperimentIBA:GO_Central
Defense responseManual Assertion Based On ExperimentIBA:GO_Central
Defense response to virusManual Assertion Based On ExperimentIMP:UniProtKB
Negative regulation of type I interferon-mediated signaling pathwayManual Assertion Based On ExperimentIMP:UniProtKB
Positive regulation of transcription by RNA polymerase IIManual Assertion Based On ExperimentIDA:ComplexPortal
Receptor signaling pathway via JAK-STATManual Assertion Based On ExperimentIBA:GO_Central
Regulation of cell population proliferationManual Assertion Based On ExperimentIBA:GO_Central
Regulation of mitochondrial fissionManual Assertion Based On ExperimentIMP:UniProtKB
Regulation of protein phosphorylationManual Assertion Based On ExperimentIMP:UniProtKB
Regulation of transcription by RNA polymerase IIManual Assertion Based On ExperimentIBA:GO_Central
Response to peptide hormoneManual Assertion Based On ExperimentIBA:GO_Central
Type I interferon signaling pathwayManual Assertion Based On ExperimentIMP:UniProtKB
Cellular Location
Cytoplasm
Nucleus
Translocated into the nucleus upon activation by IFN-alpha/beta.
Involvement in disease
Immunodeficiency 44 (IMD44):
An autosomal recessive disorder characterized by increased susceptibility to viral infection, resulting in some patients in encephalopathy and infection-associated neurologic decompensation.
Pseudo-TORCH syndrome 3 (PTORCH3):
An autosomal recessive disorder characterized by developmental delay with acute episodes of fever and multisystemic organ involvement, including coagulopathy, elevated liver enzymes, and proteinuria, often associated with thrombotic microangiopathy. Brain imaging shows progressive intracranial calcifications, white matter abnormalities, and sometimes cerebral or cerebellar atrophy. Disease onset is in the neonatal period, and death in early childhood is common.
PTM
Tyrosine phosphorylated in response to IFN-alpha. Phosphorylation at Ser-287 negatively regulates the transcriptional response.
'Lys-48'-linked ubiquitination by DCST1 leads to STAT2 proteasomal degradation.
(Microbial infection) Ubiquitinated by Herpes simplex virus 2 E3 ubiquitin ligase ICP22.
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For research use only. Not intended for any clinical use.

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