| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Mothers against decapentaplegic homolog 3;MAD homolog 3;Mad3;Mothers against DPP homolog 3;hMAD-3;JV15-2;SMAD family member 3;SMAD 3;Smad3;hSMAD3;SMAD3;MADH3; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | A synthesized peptide derived from human Phospho-Smad3 (S423 + S425) |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Target | |
| UniProt # |
Overview
Anti-Phospho-Smad3 (S423 + S425) Rabbit Monoclonal Antibody is an antibody targeting SMAD3. Common applications include WB, IHC, ICC, IF. Key specifications include host: Rabbit; clonality: Monoclonal; clone: Clone: AHO-19; isotype: Rabbit IgG; reactivity: Human,Mouse; observed MW: 90-100 kDa; calculated MW: 48081 MW.
Boster Bio Anti-Phospho-Smad3 (S423 + S425) Rabbit Monoclonal Antibody catalog # P00059-1. Tested in WB, IHC, ICC/IF applications. This antibody reacts with Human, Mouse.
Key elements and design rationale
- Target: SMAD3 — Mothers against decapentaplegic homolog 3
- Antibody format: Host: Rabbit; Clonality: Monoclonal; Clone: Clone: AHO-19; Isotype: Rabbit IgG
- Species reactivity: Human,Mouse
- Molecular weight guidance: Observed: 90-100 kDa; Calculated: 48081 MW
- Phospho site(s): S423,S425
Biological background
Protein function (datasheet): 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. .
Cellular localization (datasheet): 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. PDPK1 prevents its nuclear translocation in response to TGF-beta.
Tissue details (datasheet): Widely expressed. Isoform 3 is not expressed in the pituitary gland. .
Research relevance and current trends
- Commonly studied in contexts related to Cancer Metabolism,Cytoplasmic,Epigenetics and Nuclear Signaling,Metabolism,Metabolism Processes,Nuclear Signaling,Nuclear Signaling Pathways,Pathways and Processes,Response To Hypoxia,Signal Transduction,Signaling Pathway,Stem Cells,TGF Beta.
- Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
- Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).
Common research applications
- Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
- Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
- Immunofluorescence / ICC: Visualize subcellular localization and co-localization patterns; consider fixation/permeabilization compatibility and controls.
Notes for experimental interpretation
- Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
- Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.
As a monoclonal antibody, this reagent is expected to recognize a defined epitope, which can support consistency across lots when epitope accessibility is preserved.
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
