Smad3 Antibody | Affinity Biosciences

製品:	Smad3 Antibody
カタログ:	AF6362
タンパク質の説明:	Rabbit polyclonal antibody to Smad3
アプリケーション:	WB IHC IF/ICC
Cited expt.:	WB, IHC, IF/ICC
反応性:	Human, Mouse, Rat
予測:	Pig, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
分子量:	58kDa; 48kD(Calculated).
ユニプロット:	P84022
RRID:	AB_2835210

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サイズ	価格	在庫状況
100ul	$280	在庫あり
200ul	$350	在庫あり

プロトコル

製品説明

ソース:

Rabbit

アプリケーション:

WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

反応性:

Human,Mouse,Rat

予測:

Pig(100%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(100%)

クローナリティ:

Polyclonal

特異性:

Smad3 Antibody detects endogenous levels of total Smad3.

RRID:

AB_2835210
引用形式: Affinity Biosciences Cat# AF6362, RRID:AB_2835210.

コンジュゲート:

Unconjugated.

精製:

The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).

保存:

Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.

別名:

折りたたみ／展開

DKFZP586N0721; DKFZp686J10186; hMAD 3; hMAD-3; hSMAD3; HSPC193; HST17436; JV15 2; JV15-2; JV152; LDS1C; LDS3; MAD (mothers against decapentaplegic Drosophila) homolog 3; MAD homolog 3; Mad homolog JV15 2; Mad protein homolog; MAD, mothers against decapentaplegic homolog 3; Mad3; MADH 3; MADH3; MGC60396; Mothers against decapentaplegic homolog 3; Mothers against DPP homolog 3; SMA and MAD related protein 3; SMAD 3; SMAD; SMAD family member 3; SMAD, mothers against DPP homolog 3; Smad3; SMAD3_HUMAN;

免疫原

免疫原:

A synthesized peptide derived from human Smad3, corresponding to a region within C-terminal amino acids.

Uniprot:

P84022(SMAD3_HUMAN) >>Visit HPA database.

遺伝子(ID):

SMAD3(4088)

タンパク質の説明:

Smad3 transcription factor phosphorylated and activated by TGF-beta-type receptors. A receptor-regulated Smad (R-smad). Binds directly to consensus DNA-binding elements in the promoters of target genes. In mouse required for establishemnt of the mucosal immune response and proper development of skeleton.

タンパク質配列:

P84022 SMAD3_HUMAN:
Protein BLAST With
NCBI/
ExPASy/
Uniprot

MSSILPFTPPIVKRLLGWKKGEQNGQEEKWCEKAVKSLVKKLKKTGQLDELEKAITTQNVNTKCITIPRSLDGRLQVSHRKGLPHVIYCRLWRWPDLHSHHELRAMELCEFAFNMKKDEVCVNPYHYQRVETPVLPPVLVPRHTEIPAEFPPLDDYSHSIPENTNFPAGIEPQSNIPETPPPGYLSEDGETSDHQMNHSMDAGSPNLSPNPMSPAHNNLDLQPVTYCEPAFWCSISYYELNQRVGETFHASQPSMTVDGFTDPSNSERFCLGLLSNVNRNAAVELTRRHIGRGVRLYYIGGEVFAECLSDSAIFVQSPNCNQRYGWHPATVCKIPPGCNLKIFNNQEFAALLAQSVNQGFEAVYQLTRMCTIRMSFVKGWGAEYRRQTVTSTPCWIELHLNGPLQWLDKVLTQMGSPSIRCSSVS

種類予測

種類予測:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species

Results

Score

Pig

100

Horse

100

Bovine

100

Sheep

100

Dog

100

Xenopus

100

Chicken

100

Rabbit

100

Zebrafish

Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

研究背景

P84022_SMAD3_HUMAN

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. Positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator.

PTMs:

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. Phosphorylation at Ser-418 by CSNK1G2/CK1 promotes ligand-dependent ubiquitination and subsequent proteasome degradation, thus inhibiting SMAD3-mediated TGF-beta responses. Phosphorylated by PDPK1.

Acetylation in the nucleus by EP300 in the MH2 domain regulates positively its transcriptional activity and is enhanced by TGF-beta.

Poly-ADP-ribosylated by PARP1 and PARP2. ADP-ribosylation negatively regulates SMAD3 transcriptional responses during the course of TGF-beta signaling.

Ubiquitinated. Monoubiquitinated, leading to prevent DNA-binding. Deubiquitination by USP15 alleviates inhibition and promotes activation of TGF-beta target genes. Ubiquitinated by RNF111, leading to its degradation: only SMAD3 proteins that are 'in use' are targeted by RNF111, RNF111 playing a key role in activating SMAD3 and regulating its turnover (By similarity). Undergoes STUB1-mediated ubiquitination and degradation.

細胞の位置付け:

Cytoplasm. Nucleus.
Note: Cytoplasmic and nuclear in the absence of TGF-beta. On TGF-beta stimulation, migrates to the nucleus when complexed with SMAD4 (PubMed:15799969). Through the action of the phosphatase PPM1A, released from the SMAD2/SMAD4 complex, and exported out of the nucleus by interaction with RANBP1 (PubMed:16751101, PubMed:19289081). Co-localizes with LEMD3 at the nucleus inner membrane (PubMed:15601644). MAPK-mediated phosphorylation appears to have no effect on nuclear import (PubMed:19218245). PDPK1 prevents its nuclear translocation in response to TGF-beta (PubMed:17327236).

タンパク質ファミリー:

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.

Belongs to the dwarfin/SMAD family.

研究領域

· Cellular Processes > Cell growth and death > Cell cycle. (View pathway)

· Cellular Processes > Transport and catabolism > Endocytosis. (View pathway)

· Cellular Processes > Cell growth and death > Cellular senescence. (View pathway)

· Cellular Processes > Cellular community - eukaryotes > Adherens junction. (View pathway)

· Cellular Processes > Cellular community - eukaryotes > Signaling pathways regulating pluripotency of stem cells. (View pathway)

· Environmental Information Processing > Signal transduction > FoxO signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > Wnt signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > TGF-beta signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > Apelin signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > Hippo signaling pathway. (View pathway)

· Human Diseases > Infectious diseases: Parasitic > Chagas disease (American trypanosomiasis).

· Human Diseases > Infectious diseases: Viral > Hepatitis B.

· Human Diseases > Infectious diseases: Viral > HTLV-I infection.

· Human Diseases > Cancers: Overview > Pathways in cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Colorectal cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Pancreatic cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Chronic myeloid leukemia. (View pathway)

· Human Diseases > Cancers: Specific types > Hepatocellular carcinoma. (View pathway)

· Human Diseases > Cancers: Specific types > Gastric cancer. (View pathway)

· Human Diseases > Immune diseases > Inflammatory bowel disease (IBD).

· Organismal Systems > Immune system > Th17 cell differentiation. (View pathway)

· Organismal Systems > Endocrine system > Relaxin signaling pathway.

参考文献

1). 20(S)-ginsenoside Rg3 exerts anti-fibrotic effect after myocardial infarction by alleviation of fibroblasts proliferation and collagen deposition through TGFBR1 signaling pathways. Journal of Ginseng Research, 2023 [IF=6.8]

Application: WB Species: Mouse Sample: CFs

Fig. 6. TGFBR1 overexpression partly abolishes Rg3's inhibition on CFs growth, collagen synthesis, together with Smads activation. (A) CFs were infected with recombinant adenovirus for 48 h, and later stimulated by TGF-β1 (10 ng/ml) and Rg3 (20 μM), and Edu assay was performed to detect CFs proliferation (magnification, 200 × ). Red and blue fluorescence indicate proliferating cells as well as nuclei, separately. (B) Edu-positive cell proportion. (C) Expression of proliferation and collagen-related proteins in CFs following Ad-TGFBR1 or control adenovirus transfection. (D) Protein expression of TGFBR1 signaling in CFs after transfection. Relative PCNA (E), CDK6 (F), Cyclin D1 (G), collagen I (H), collagen III (I), p-TGFBR1 (J), p-Smad2 (K), and p-Smad3 (L) expression. Data are represented by mean ± SD for at least 3 groups. ∗p < 0.05, ∗∗p < 0.01. n.s, not significant.

2). Myricetin suppresses the proliferation and migration of vascular smooth muscle cells and inhibits neointimal hyperplasia via suppressing TGFBR1 signaling pathways. PHYTOMEDICINE, 2021 (PubMed: 34500301) [IF=6.7]

Application: WB Species: Sample: VSMCs

Fig. 5.| Adenovirus-mediated TGFBR1 overexpression partially reverses the suppressive impact of myricetin on the activation of TGFBR1 signaling. (A) Forty-eight hours post-infection with negative control Ad-GFP or Ad-TGFBR1, VSMCs were treated with myricetin (60 μM) for 24 h, and western blotting was used to assess pTGFBR1, TGFBR1 and its downstream molecules p-samd3, Smad3, p-Smad2 and Smad2 expression.

Application: WB Species: Human Sample: VSMCs

Fig. 4. Myricetin suppresses TGFBR1 signaling pathway activation. (A) Western blotting was used to assess p-TGFBR1, TGFBR1 and its downstream molecules psamd3, Smad3, p-Smad2 and Smad2 expression in cells treated with different doses of myricetin for 24 h. (B-G) The densitometry analysis and quantitative results of (A) (n = 3). Results are shown as mean ± standard deviation (SD). * p < 0.05, ** p < 0.01 compared with the control group.

3). Targeting PYK2, entrectinib allays anterior subcapsular cataracts in mice by regulating TGFβ2 signaling pathway. Molecular medicine (Cambridge, Mass.), 2024 (PubMed: 39333897) [IF=6.0]

4). MBNL2 promotes aging-related cardiac fibrosis via inhibited SUMOylation of Krüppel-like factor4. iScience, 2024 (PubMed: 38974966) [IF=5.8]

5). Exosome‑encapsulated miR‑26a attenuates aldosterone‑induced tubulointerstitial fibrosis by inhibiting the CTGF/SMAD3 signaling pathway. International Journal of Molecular Medicine, 2023 (PubMed: 36524378) [IF=5.7]

Application: WB Species: Mice Sample: kidneys

Figure 6 miR-26a/CTGF inhibits SMAD3 activation. (A) Western blot analysis of SMAD3 and p-SMAD3 protein expression levels in the kidneys of mice in the sham, ALD, ALD + Exo-NC and ALD + Exo-miR-26a groups. (B) Western blot analysis of SMAD3 and p-SMAD3 protein expression levels in mTECs co-transfected with oe-CTGF or oe-NC and miR-26a mimic or NC mimic for 6 h, and then treated with ALD (1×10−6 M) for 48 h. (C) Western blot analysis of SMAD3 and p-SMAD3 protein levels in mTECs co-transfected with si-CTGF or si-NC and miR-26a inhibitor or NC inhibitor for 6 h, and then treated with ALD (1×10−6 M) for 48 h. Data are presented as mean ± SD; Data are presented as the mean ± SD; *P<0.05, **P<0.01, ***P<0.001; #P<0.05, ##P<0.01. ALD, aldosterone; CTGF, connective tissue growth factor; Exo, exosome encapsulated; miR, microRNA; mTEC, mouse tubular epithelial cells; NC, negative control; p-phosphorylated.

6). Adipose Mesenchymal Stromal Cell-Derived Exosomes Carrying MiR-122-5p Antagonize the Inhibitory Effect of Dihydrotestosterone on Hair Follicles by Targeting the TGF-β1/SMAD3 Signaling Pathway. International Journal of Molecular Sciences, 2023 (PubMed: 36982775) [IF=5.6]

Application: WB Species: Mouse Sample:

Figure 4 miR-122-5p targets and negatively regulates SMAD3. (A) Binding site prediction of miR-122-5p in SMAD3 3′-UTR. (B) Luciferase analysis showing miR-122-5p targeting SMAD3. (C) The expression of miR-122-5p in Exo-miR-122-5p and Exo-in-miR-122-5p. (D) Protein expression of SMAD3 and p-SMAD3 in DPCs treated with Exo-miR-122-5p and Exo-in-miR-122-5p.

7). Regorafenib-Attenuated, Bleomycin-Induced Pulmonary Fibrosis by Inhibiting the TGF-β1 Signaling Pathway. International Journal of Molecular Sciences, 2021 (PubMed: 33671452) [IF=5.6]

Application: WB Species: Mouse Sample: Mlg cells

Figure 3. Regorafenib down-regulates TGF-β1/Smad and TGF-β1/non-Smad signals in pulmonary fibroblasts. (A) CAGAmouse embryonic fibroblast (NIH-3T3) cells were exposed to TGF-β1 (5 ng/mL) or a series concentration (0–32 µM) in serum-free medium for 18 h; (B) Mlg cells were treated with TGF-β1 (5 ng/mL) and/or RG (2 µM, 4 µM) for 30 min, and Western blot was used to detect Smad3, Smad2, and their phosphorylation expression levels. Densitometric analysis are shown beside; (C) Mlg cells were incubated with RG (2 µM, 4 µM) and/or TGF-β1 (5 ng/mL) for 12 h to analyze the Erk1/2 and Akt and their phosphorylation levels by Western blotting. Densitometric analysis are shown beside; (D) BLM-PPF cells were incubated with RG (2 µM, 4 µM) for 12 h to analyze Erk1/2 and Akt and their phosphorylation levels by Western blotting. Densitometric analysis are shown beside. β-tubulin or GAPDH were used as a loading control. Data in (A–D) are means ± standard error of mean (SEM); ### p < 0.001, * p < 0.05, ** p < 0.01, *** p < 0.001 (one-way ANOVA), NS: not significant.

8). Myricetin ameliorates bleomycin-induced pulmonary fibrosis in mice by inhibiting TGF-β signaling via targeting HSP90β. BIOCHEMICAL PHARMACOLOGY, 2020 (PubMed: 32535102) [IF=5.3]

9). Mesenchymal stem cells ameliorate silica‐induced pulmonary fibrosis by inhibition of inflammation and epithelial‐mesenchymal transition. JOURNAL OF CELLULAR AND MOLECULAR MEDICINE, 2021 (PubMed: 34076355) [IF=5.3]

Application: WB Species: rat Sample: lung

FIGURE 5|BMSCs blocked the activation of TGF-β/Smad pathway. (D) Western blot results of TGF-β1, Smad2, p-Smad2, Smad3, p-Smad3 and Smad7 protein expression levels. n = 3 rats per group.

10). Taohong siwu decoction attenuates myocardial fibrosis by inhibiting fibrosis proliferation and collagen deposition via TGFBR1 signaling pathway. Journal of Ethnopharmacology, 2021 (PubMed: 33460756) [IF=4.8]

Application: WB Species: mice Sample: cardiac fibroblasts

Fig. 6. THSWD suppresses expression of collagen and activation of the TGFBR1 signaling pathway. (A, B) CFs were incubated without or with TGF-β1 (10 ng/ml) and THSWD (15, 30 and 60 μg/ml) for 24 h, and the expression levels of collagen I, collagen III, collagen V, phospho-TGFBR1, TGFBR1, phospho-Smad2, Smad2, phospho-Smad3 and Smad3 were tested by western blotting. (C–E) Expression levels of collagen I, collagen III and collagen V were normalized with GAPDH (n = 3). (F–H) Expression levels of phospho-TGFBR1, phospho-Smad2, and phospho-Smad3 were normalized to that of TGFBR1, Smad2 and Smad3 proteins, respectively (n = 3). Data were shown as mean ± SD. #P < 0.05, vs. control group. *P < 0.05, **P < 0.01, vs. model group.

Application: IHC Species: mice Sample: heart tissues

Fig. 4. IHC analysis of TGFBR1 signaling pathway related-protein expression in heart tissues. (A) IHC showed inhibition of TGFBR1, Smad3, collagen I, collagen III and α-SMA in THSWD-treated mouse heart tissues compared with the model group. (B–F) Quantitative analysis for IHC staining of TGFBR1, Smad3, collagen I, collagen III and α-SMA. Data were shown as mean ± SD. **P < 0.01, vs. model group.

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Smad3 Antibody - #AF6362

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