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8204
PhosphoPlus® Stat3 (Tyr705) Antibody Duet

PhosphoPlus® Stat3 (Tyr705) Antibody Duet #8204

Western Blotting Image 1

Western blot analysis of extracts from IFN-alpha treated Jurkat cells and HeLa cells (left), as well as EGF treated A431 cells (right), using Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb. Note that the basal phospho-Stat3 in A431 is detected by the antibody.

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Chromatin IP-seq Image 2

Chromatin immunoprecipitations were performed with cross-linked chromatin from Hep G2 cells starved overnight and treated with IL-6 (100 ng/ml) for 30 minutes and Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb, using SimpleChIP® Plus Enzymatic Chromatin IP Kit (Magnetic Beads) #9005. DNA Libraries were prepared from 5 ng enriched ChIP DNA using NEBNext® Ultra™ II DNA Library Prep Kit for Illumina®, and sequenced on the Illumina NextSeq. The figure shows binding across IRF1, a known target gene of Phospho-Sata3 (see additional figure containing ChIP-qPCR data). For additional ChIP-seq tracks, please download the product data sheet.

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Western Blotting Image 3

Western blot analysis of extracts from various cell lines using Stat3 (D3Z2G) Rabbit mAb (upper), or β-Actin (D6A8) Rabbit mAb #8457 (lower). PC-3 cells are negative for Stat3.

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Chromatin IP-seq Image 4

Chromatin immunoprecipitations were performed with cross-linked chromatin from Hep G2 cells starved overnight and treated with Human Interleukin-6 (hIL-6) #8904 (100 ng/ml) for 30 minutes and Stat3 (D3Z2G) Rabbit mAb, using SimpleChIP® Plus Enzymatic Chromatin IP Kit (Magnetic Beads) #9005. DNA Libraries were prepared from 5 ng enriched ChIP DNA using NEBNext® Ultra™ II DNA Library Prep Kit for Illumina®, and sequenced on the Illumina NextSeq. The figure shows binding across Fos, a known target gene of Stat3 (see additional figure containing ChIP-qPCR data). For additional ChIP-seq tracks, please download the product data sheet.

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IHC-P (paraffin) Image 5

Immunohistochemical analysis of paraffin-embedded Apc (min/+) mouse intestine, using Phosho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb.

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Chromatin IP Image 6

Chromatin immunoprecipitations were performed with cross-linked chromatin from Hep G2 cells starved overnight and treated with IL-6 (100 ng/ml) for 30 minutes, and either Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb or of Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using human IRF-1 promoter primers, SimpleChIP® Human c-Fos Promoter Primers #4663, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.

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IP Image 7

Immunoprecipitation of Stat3 from HeLa cell extracts using Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (lane 2) or Stat3 (D3Z2G) Rabbit mAb (lane 3). Lane 1 is 10% input.

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IHC-P (paraffin) Image 8

Immunohistochemical analysis of paraffin embedded human breast carcinoma, specifically endothelial cells, untreated (left) or lambda phosphatase treated (right), using Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb.

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Flow Cytometry Image 9

Flow cytometric analysis of of PC-3 (blue) and HeLa (green) cells using Stat3 (D3Z2G) Rabbit mAb. Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.

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IHC-P (paraffin) Image 10

Immunnohistochemical analysis of paraffin-embedded human lung carcinoma, showing nuclear localization, using Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb.

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IF-IC Image 11

Confocal immunofluorescent analysis of serum-starved HeLa cells, untreated (upper left) or treated with Human Interferon-α1 (hIFN-α1) #8927 (100 ng/ml, 30 min; upper right), and serum-starved PC-3 cells, untreated (lower right) or treated with Human Interferon-α1 (hIFN-α1) #8927 (100 ng/ml, 30 min; lower right), using Stat3 (D3Z2G) Rabbit mAb (green) and β-Actin (8H10D10) Mouse mAb #3700 (red).

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IHC-P (paraffin) Image 12

Immunohistochemical analysis using Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb on SignalSlide® HeLa -/+ IFNa IHC Controls #55861 (paraffin-embedded HeLa cell pellets, untreated (left) or treated with Human Interferon-α1 (hIFN-α1) #8927 (right)).

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Chromatin IP Image 13

Chromatin immunoprecipitations were performed with cross-linked chromatin from Hep G2 cells starved overnight and treated with Human Interleukin-6 (hIL-6) #8904 (100 ng/ml) for 30 minutes, and either Stat3 (D3Z2G) Rabbit mAb or Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using human IRF-1 promoter primers, SimpleChIP® Human c-Fos Promoter Primers #4663, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.

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IHC-F (frozen) Image 14

Immunohistochemical analysis of frozen H1650 xenograft using Phospho-Stat3 (Tyr705)(D3A7) XP® Rabbit mAb.

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Flow Cytometry Image 15

Flow cytometric analysis of HeLa cells, untreated (blue) or IFN-α treated (green), using Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb.

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IF-IC Image 16

Confocal immunofluorescent analysis of HeLa cells, IFN-alpha treated (left) or untreated (right), labeled with Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb (green).

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Product Includes Quantity Applications Reactivity MW(kDa) Isotype
Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb 9145 100 µl
  • WB
  • IP
  • IHC
  • IF
  • F
  • ChIP
H M R Mk 79, 86 Rabbit IgG
Stat3 (D3Z2G) Rabbit mAb 12640 100 µl
  • WB
  • IP
  • IF
  • F
  • ChIP
H M R Mk 79, 86 Rabbit IgG

PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.

The Stat3 transcription factor is an important signaling molecule for many cytokines and growth factor receptors (1) and is required for murine fetal development (2). Research studies have shown that Stat3 is constitutively activated in a number of human tumors (3,4) and possesses oncogenic potential (5) and anti-apoptotic activities (3). Stat3 is activated by phosphorylation at Tyr705, which induces dimerization, nuclear translocation, and DNA binding (6,7). Transcriptional activation seems to be regulated by phosphorylation at Ser727 through the MAPK or mTOR pathways (8,9). Stat3 isoform expression appears to reflect biological function as the relative expression levels of Stat3α (86 kDa) and Stat3β (79 kDa) depend on cell type, ligand exposure, or cell maturation stage (10). It is notable that Stat3β lacks the serine phosphorylation site within the carboxy-terminal transcriptional activation domain (8).

  1. Heim, M.H. (1999) J Recept Signal Transduct Res 19, 75-120.
  2. Takeda, K. et al. (1997) Proc Natl Acad Sci U S A 94, 3801-4.
  3. Catlett-Falcone, R. et al. (1999) Immunity 10, 105-15.
  4. Garcia, R. and Jove, R. (1998) J Biomed Sci 5, 79-85.
  5. Bromberg, J.F. et al. (1999) Cell 98, 295-303.
  6. Darnell, J.E. et al. (1994) Science 264, 1415-21.
  7. Ihle, J.N. (1995) Nature 377, 591-4.
  8. Wen, Z. et al. (1995) Cell 82, 241-50.
  9. Yokogami, K. et al. (2000) Curr Biol 10, 47-50.
  10. Biethahn, S. et al. (1999) Exp Hematol 27, 885-94.
Entrez-Gene Id
6774
Swiss-Prot Acc.
P40763
For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
PhosphoPlus is a trademark of Cell Signaling Technology, Inc.
U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.

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