|Application ||WB, IHC-P, IF, E|
|Other Accession||NP_006090, 115298686|
|Reactivity||Human, Mouse, Rat|
|Calculated MW||68017 Da|
|Application Notes||PIAS3 antibody can be used for detection of PIAS3 by Western blot at 1 µg/mL. Antibody can also be used for immunohistochemistry starting at 5 µg/mL. For immunofluorescence start at 20 µg/mL.|
|Reconstitution & Storage||PIAS3 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.|
|Precautions||PIAS3 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Functions as an E3-type small ubiquitin-like modifier (SUMO) ligase, stabilizing the interaction between UBE2I and the substrate, and as a SUMO-tethering factor. Plays a crucial role as a transcriptional coregulation in various cellular pathways, including the STAT pathway and the steroid hormone signaling pathway. Involved in regulating STAT3 signaling via inhibiting STAT3 DNA-binding and suppressing cell growth. Enhances the sumoylation of MTA1 and may participate in its paralog-selective sumoylation.|
|Cellular Location||Cytoplasm. Nucleus. Note=Mainly cytoplasmic but shuttles between the nucleus and cytoplasm. Transported to the nucleus on interaction with phosphorylated STAT3. Colocalizes with GFI1 in nuclear dots (By similarity).|
|Tissue Location||Isoform 1 is expressed in most tissues except thymus and small intestine. Isoform 3 is expressed only in brain, heart, thymus, muscle, lung, testis, lactating breast and embryonic stem cells.|
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Provided below are standard protocols that you may find useful for product applications.
PIAS3 Antibody: The PIAS (protein inhibitor of activated STAT) proteins play a crucial role as transcriptional coregulators in various cellular pathways, including the STAT, p53 and the steroid hormone signaling pathway. The PIAS protein family includes at least five evolutionarily conserved genes, including PIAS3. The major function of the PIAS proteins is the control of gene transcription and can also act as small ubiquitin-like-modifier (SUMO) E3 ligases. PIAS3 binds specifically to STAT3 following the stimulation of STAT3. Increased expression of PIAS3 has been observed in several human cancers, including lung, breast, and brain tumors, but not in anaplastic lymphoma kinase-positive T/null-cell lymphomas, indicating that PIAS3 plays multiple roles in different tissue and cell types.
Shuai K and Liu B. Regulation of gene-activation pathways by PIAS proteins in the immune system. Nat. Rev. Immunol.2005; 5:593-605.
Chung CD, Liao J, Liu B, et al. Specific inhibition of Stat3 signal transduction by PIAS3. Science1997; 278:1803-5.
Wang L and Banerjee S. Differential PIAS3 expression in human malignancy. Oncol. Rep.2004; 11:1319-24.
Zhang Q, Raghunath PN, Xue L, et al. Multilevel dysregulation of STAT3 activation in anaplastic lymphoma kinase-positive T/null-cell lymphoma. J. Immunol.2002; 168:466-7
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