STAT3 elisa kit :: Human Signal Transducer And Activator Of Transcription 3 (STAT3) ELISA Kit

For Research Use Only. Not for use in diagnostic procedures.

Chromosome: 12; NC_010454.3 (20709840..20775694, complement). Location: 12; 12

This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator Of Transcription 3 (STAT3).
No significant cross-reactivity or interference between Signal Transducer And Activator Of Transcription 3 (STAT3) and analogues was observed.

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Manufactured in an ISO 9001:2008 and ISO 13485:2003 Certified Laboratory.

Manufactured in a lab with traceable raw materials. Bulk orders can typically be prepared to the customer’s specifications, please inquire.

Our ELISA Kit assays are dynamic research tools and sometimes they may be updated and improved. If the format of this assay is important to you then please request the current manual or contact our technical support team with a presales inquiry before placing an order. We will confirm the current details of the assay. We cannot guarantee the sample manual posted online is the most current manual.

Small volumes of STAT3 elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS2024094 is a ready-to-use microwell, strip plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the Signal Transducer And Activator Of Transcription 3 (STAT3) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing STAT3. The ELISA analytical biochemical technique of the MBS2024094 kit is based on STAT3 antibody-STAT3 antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect STAT3 antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, STAT3. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Signal Transducer And Activator Of Transcription 3 (STAT3). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Signal Transducer And Activator Of Transcription 3 (STAT3). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Signal Transducer And Activator Of Transcription 3 (STAT3), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Signal Transducer And Activator Of Transcription 3 (STAT3) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

88,067 Da

signal transducer and activator of transcription 3

Signal transducer and activator of transcription 3

STAT3_PIG

Function: Signal transducer and transcription activator that mediates cellular responses to interleukins, KITLG/SCF and other growth factors. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4. Binds to the interleukin-6 (IL-6)-responsive elements identified in the promoters of various acute-phase protein genes. Activated by IL31 through IL31RA

By similarity. Cytoplasmic STAT3 represses macroautophagy by inhibiting EIF2AK2/PKR activity

By similarity. Plays an important role in host defense in methicillin-resistant S.aureus lung infection by regulating the expression of the antimicrobial lectin REG3G

By similarity.

Subunit structure: Forms a homodimer or a heterodimer with a related family member (at least STAT1). Interacts with IL31RA, NCOA1, PELP1, SIPAR, SOCS7, STATIP1 and TMF1. Interacts with IL23R in presence of IL23. Interacts (via SH2 domain) with NLK. Interacts with KPNA4 and KPNA5; KPNA4 may be the primary mediator of nuclear import. Interacts with CAV2; the interaction is increased on insulin-induced tyrosine phosphorylation of CAV2 and leads to STAT3 activation. Interacts with ARL2BP; interaction is enhanced with ARL2. Interacts with ARL2BP; the interaction is enhanced by LIF and JAK1 expression. Interacts with NEK6. Binds to CDK9 when activated and nuclear. Interacts with BMX. Interacts with EGFR; mediates EGFR downstream signaling to control cell proliferation. Interacts with STMN3, antagonizing its microtubule-destabilizing activity

By similarity. Interacts with the 'Lys-129' acetylated form of BIRC5/survivin. Interacts with FER

By similarity. Interacts with NEK6

By similarity. Interacts with BMX

By similarity. Interacts with ZIPK/DAPK3

By similarity. Interacts (via SH2 domain) with EIF2AK2/PKR (via the kinase catalytic domain)

By similarity.

Subcellular location: Cytoplasm. Nucleus. Note: Shuttles between the nucleus and the cytoplasm. Translocated into the nucleus upon tyrosine phosphorylation and dimerization, in response to signaling by activated FGFR1, FGFR2, FGFR3 or FGFR4. Constitutive nuclear presence is independent of tyrosine phosphorylation. Predominantly present in the cytoplasm without stimuli. Upon leukemia inhibitory factor (LIF) stimulation, accumulates in the nucleus. The complex composed of BART and ARL2 plays an important role in the nuclear translocation and retention of STAT3

By similarity. Ref.1

Tissue specificity: Detected in lung, heart, oviduct, ovary, uterus and kidney (at protein level). Detected in ovary, oviduct, and at lower levels in uterus and lung. Ref.1

Post-translational modification: Activated through tyrosine phosphorylation by BMX. Tyrosine phosphorylated in response to IL6, IL11, CNTF, LIF, KITLG/SCF, CSF1, EGF, PDGF, IFN-alpha and OSM. Activated KIT promotes phosphorylation on tyrosine residues and subsequent translocation to the nucleus. Tyrosine phosphorylated in response to constitutively activated FGFR1, FGFR2, FGFR3 and FGFR4. Phosphorylated on serine upon DNA damage, probably by ATM or ATR. Serine phosphorylation is important for the formation of stable DNA-binding STAT3 homodimers and maximal transcriptional activity. ARL2BP may participate in keeping the phosphorylated state of STAT3 within the nucleus. Tyrosine phosphorylated upon stimulation with EGF. Upon LPS challenge, phosphorylated within the nucleus by IRAK1. Phosphorylated on Ser-727 by RPS6KA5

By similarity. Phosphoryation at Tyr-705 by FER or PTK6 leads to an increase of its transcriptional activity

By similarity. Dephosphorylation on tyrosine residues by PTPN2 negatively regulates IL6/interleukin-6 signaling

By similarity. Ref.1

Miscellaneous: Involved in the gp130-mediated signaling pathway.

Sequence similarities: Belongs to the transcription factor STAT family.Contains 1 SH2 domain.

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