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You are here:Home » Antibodies » Abs to Transcription Factors, STAT » Anti -STAT 4 (Signal Transducer and Activator of Transcription 4)

Anti -STAT 4 (Signal Transducer and Activator of Transcription 4)

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Specifications

Clone Host Grade Applications
Polyclonal Rabbit Affinity Purified B IP
Signal transducer and activator of transcription 4 (STAT4), also known as gamma interferon activation site-binding protein, is an 86 kD protein that serves as signal transducer and transcriptional activator of the cytokine-induced JAK-STAT pathway (1). This pathway is initiated with the binding of cytokine to its corresponding cell surface membrane receptors (2). This is followed by the association with the cytoplasmic domain of cytokine receptor and its subsequent phosphorylation by JAKs, a family of cytoplasmic tyro-sine kinases. STAT4 has a dual function. It is responsible for both signal transduction and activation of transcription and is expressed in early myeloid differentiation. Defects in the Jak-STAT pathway have already been identi-fied in a number of human diseases such as leukemias, lymphomas and im-munodeficiency syndromes. It can be expected that additional JAK-STAT related diseases will be identified over the next years. To date, specific STAT inhibitory drugs are not known, but a number of specific protein-protein in-teractions in the JAK-STAT pathway are potential targets for pharmaceutical interventions (3).
Catalog #S7972-05
ApplicationsSuitable for use in Western Blot and Immunoprecipitation. Other applications not tested.
Recommended DilutionWestern Blot (Colorimetric and ECL): 1ug/ml
Immunoprecipitation: 10ug/mg
Optimal dilutions to be determined by the researcher.
Positive ControlRat Testis Tissue Extract
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, add sterile glycerol (40-50%), aliquot and store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone TypePolyclonal
IsotypeIgG
HostRabbit
SourceMouse
Concentration~0.5mg/ml
FormSupplied as a liquid in borate buffered saline, pH 8.2 (25mM sodium borate, 100mM boric acid, 75mM sodium chloride, 5mM EDTA disodium salt).
PurityPurified by immunoaffinity chromatography.
ImmunogenA 20 residue synthetic peptide (C)RENLSPTTIETAMNSPYSAE based on the mouse STAT4 (residues 730-749) with the cysteine (C) residue added and the peptide coupled to KLH
SpecificityDetects an 86kD protein, corresponding to the apparent molecular mass of STAT4 on SDS-PAGE immunoblots. Antibody specificity is confirmed by peptide inhibition studies.
Species CrossreactivityMouse and rat.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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