Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) 抗体 (ab51451)


  • 製品名Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) antibody
  • 製品の詳細
    Rabbit polyclonal to Smad 3 (phospho Ser423/425) (phospho S423 + S425)
  • 特異性ab51451 is specific for the phosphorylated form of the protein although minimal reactivity with nonphosphorylated human Smad3 can be observed by ELISA and WB. ab51451 also reacts with phosphorylated Smad1 and Smad5 but negligible reactivity is seen against other phosphorylated Smad family members.
  • アプリケーション適用あり: IHC-P, WB, ELISA, ICC/IFmore details
  • 種交差性
    交差種: Mouse, Chicken, Human
    交差が予測される動物種: Rat, Cow, Pig, Xenopus laevis, Zebrafish
  • 免疫原

    Synthetic peptide corresponding to Human SMAD1/3/5 aa 417-425.




Our Abpromise guarantee covers the use of ab51451 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

アプリケーション Abreviews 特記事項
IHC-P Use at an assay dependent concentration. PubMed: 20519446
WB 1/2000 - 1/20000. Predicted molecular weight: 48 kDa. Stimulation with 2 ng/ml TGF-beta for 1 hour is suggested.
ELISA 1/25000 - 1/100000.
ICC/IF Use at an assay dependent concentration.


  • 機能Receptor-regulated SMAD (R-SMAD) that is an intracellular signal transducer and transcriptional modulator activated by TGF-beta (transforming growth factor) and activin type 1 receptor kinases. Binds the TRE element in the promoter region of many genes that are regulated by TGF-beta and, on formation of the SMAD3/SMAD4 complex, activates transcription. Also can form a SMAD3/SMAD4/JUN/FOS complex at the AP-1/SMAD site to regulate TGF-beta-mediated transcription. Has an inhibitory effect on wound healing probably by modulating both growth and migration of primary keratinocytes and by altering the TGF-mediated chemotaxis of monocytes. This effect on wound healing appears to be hormone-sensitive. Regulator of chondrogenesis and osteogenesis and inhibits early healing of bone fractures.
  • 関連疾患Defects in SMAD3 may be a cause of colorectal cancer (CRC) [MIM:114500].
  • 配列類似性Belongs to the dwarfin/SMAD family.
    Contains 1 MH1 (MAD homology 1) domain.
    Contains 1 MH2 (MAD homology 2) domain.
  • ドメインThe MH1 domain is required for DNA binding. Also binds zinc ions which are necessary for the DNA binding.
    The MH2 domain is required for both homomeric and heteromeric interactions and for transcriptional regulation. Sufficient for nuclear import.
    The linker region is required for the TGFbeta-mediated transcriptional activity and acts synergistically with the MH2 domain.
  • 翻訳後修飾Phosphorylated on serine and threonine residues. Enhanced phosphorylation in the linker region on Thr-179, Ser-204 and Ser-208 on EGF AND TGF-beta treatment. Ser-208 is the main site of MAPK-mediated phosphorylation. CDK-mediated phosphorylation occurs in a cell-cycle dependent manner and inhibits both the transcriptional activity and antiproliferative functions of SMAD3. This phosphorylation is inhibited by flavopiridol. Maximum phosphorylation at the G(1)/S junction. Also phosphorylated on serine residues in the C-terminal SXS motif by TGFBR1 and ACVR1. TGFBR1-mediated phosphorylation at these C-terminal sites is required for interaction with SMAD4, nuclear location and transactivational activity, and appears to be a prerequisite for the TGF-beta mediated phosphorylation in the linker region. Dephosphorylated in the C-terminal SXS motif by PPM1A. This dephosphorylation disrupts the interaction with SMAD4, promotes nuclear export and terminates TGF-beta-mediated signaling.
    Acetylation in the nucleus by EP300 in the MH2 domain regulates positively its transcriptional activity and is enhanced by TGF-beta.
  • 細胞内局在Cytoplasm. Nucleus. Cytoplasmic and nuclear in the absence of TGF-beta. On TGF-beta stimulation, migrates to the nucleus when complexed with SMAD4. Through the action of the phosphatase PPM1A, released from the SMAD2/SMAD4 complex, and exported out of the nucleus by interaction with RANBP1. Co-localizes with LEMD3 at the nucleus inner membrane. MAPK-mediated phosphorylation appears to have no effect on nuclear import.
  • Information by UniProt
  • 参照データベース
  • 別名
    • hMAD-3 antibody
    • hSMAD3 antibody
    • HSPC193 antibody
    • HsT17436 antibody
    • JV15-2 antibody
    • LDS1C antibody
    • MAD homolog 3 antibody
    • Mad homolog JV15 2 antibody
    • MAD mothers against decapentaplegic homolog 3 antibody
    • Mad protein homolog antibody
    • Mad3 antibody
    • MADH3 antibody
    • Mothers against decapentaplegic homolog 3 antibody
    • Mothers against DPP homolog 3 antibody
    • SMA and MAD related protein 3 antibody
    • SMAD 3 antibody
    • SMAD family member 3 antibody
    • SMAD mothers against DPP homolog 3 antibody
    • Smad3 antibody
    • SMAD3_HUMAN antibody
    see all

Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) antibody 画像

  • All lanes : Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) antibody (ab51451) at 1 µg/ml

    Lane 1 : HEK293 lysate
    Lane 2 : HeLa Lysate
    Lane 3 : MCF-7 Lysate
    Lane 4 : Jurkat Lysate
    Lane 5 : A431 Lysate
    Lane 6 : A549 Lysate
    Lane 7 : LNCap Lysate
    Lane 8 : MOLT-4 Lysate
    Lane 9 : Ramos Lysate
    Lane 10 : Raji Lysate
    Lane 11 : A-172 Lysate
    Lane 12 : NIH/3T3 Lysate

    Lysates/proteins at 10 µg per lane.

    Lanes 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 & 12 : Peroxidase rabbit secondary antibody at 1/30000 dilution
    Lane 3 : Peroxidase rabbit secondary antibody at 30000

    Predicted band size : 48 kDa
  • ab51451 at 2.5 µg/ml staining epidermal keratinocytes at 40X.  This image shows strong nuclear staining with localization of the antibody as the precipated red siganl and a hematoxylin purple nuclear counterstain.

  • ab51451 staining Smad3 (phospho S423 + S425) in PC3 and LnCAP cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with 70% ethanol and blocked for 1 hour at 26°C. Samples were incubated with primary antibody (1/150) for 16 hours at 4°C. An IRDye® 800CW-conjugated goat anti-rabbit IgG polyclonal (1/500) was used as the secondary antibody. NC-PC3 - negative control PC3 cells, NC-LnCAP - negative control LnCAP cells.

    See Abreview

  • All lanes : Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) antibody (ab51451) at 1/2000 dilution

    Lane 1 : MEF lysate (control)
    Lane 2 : MEF lysate, after stimulation with 2 ng/ml of TGF-ß for 1 hour
    Lane 3 : MEF-/-Smad3 lysate (control)
    Lane 4 : MEF-/-Smad3 lysate, after stimulation with 2 ng/ml of TGF-ß for one hour
    Lane 5 : Hep3B lysate (control)
    Lane 6 : Hep3B lysate, after stimulation with 2 ng/ml of TGF-ß for one hour
    Lane 7 : HEK 293 lysate (control)

    Predicted band size : 48 kDa
    Image courtesy of Ying Zhang, NIH, CCR, Bethesda, MD.

Anti-Smad 3 (phospho Ser423/425) (phospho S423 + S425) antibody (ab51451) 使用論文

This product has been referenced in:
  • Evrard SM  et al. Endothelial to mesenchymal transition is common in atherosclerotic lesions and is associated with plaque instability. Nat Commun 7:11853 (2016). WB ; Human . Read more (PubMed: 27340017) »
  • Padrão AI  et al. Endurance training prevents TWEAK but not myostatin-mediated cardiac remodelling in cancer cachexia. Arch Biochem Biophys 567:13-21 (2015). Read more (PubMed: 25575785) »

See all 18 Publications for this product

Product Wall

Application Immunohistochemistry (Frozen sections)
Sample Mouse Tissue sections (heart)
Permeabilization Yes - 0.3% Triton X
Specification heart
Blocking step Serum as blocking agent for 20 minute(s) · Concentration: 20% · Temperature: 25°C
Fixative Paraformaldehyde

Abcam user community

Verified customer

投稿 Oct 19 2015

Application Immunocytochemistry/ Immunofluorescence
Blocking step Odyssey Blocking Buffer as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 100% · Temperature: 26°C
Sample Human Cell (PC3 and LnCAP)
Specification PC3 and LnCAP
Permeabilization Yes - 70% Ethanol
Fixative Paraformaldehyde

Dr. Francesco Elia Marino

Verified customer

投稿 May 02 2014

Application Western blot
Loading amount 60 µg
Gel Running Conditions Reduced Non-Denaturing (Native) (12)
Sample Mouse Tissue lysate - whole (Mouse gastrocnemius)
Specification Mouse gastrocnemius
Blocking step Odyssey Blocking Buffer as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 100% · Temperature: 26°C

Dr. Francesco Elia Marino

Verified customer

投稿 Mar 26 2014

Thank you for calling Abcam earlier today.

As we talked about on the telephone, I am sending you ab52903 as a free of charge replacement. Your new order/reference number is********.

Please let me know if there is anything else I can...

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Thank you for your reply.

The only other phospho-smad3 (S423+S425) we have are:

ab11825 -

ab52903 -

Read More

Thank you very much for contacting Abcam.

The isotype control that I would recommend for your flow cytometry experiments is:

Below is the infromation about...

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