Anti-SMAD2 Antibody Picoband® (monoclonal, 3C4)

Overview

Anti-SMAD2 Antibody Picoband® (monoclonal, 3C4) is an antibody for SMAD2 detection raised in Mouse (Monoclonal, clone Clone: 3C4, Mouse IgG1), with reported reactivity: Human. Commonly used in WB, IHC, Flow Cytometry, ELISA workflows.

Key elements and design rationale

• Target: SMAD2 (high mobility group box 1); UniProt: Q15796
• Antibody format: Mouse, Monoclonal, clone Clone: 3C4, Mouse IgG1
• Molecular weight: 55 kDa
• Applications: WB, IHC, Flow Cytometry, ELISA

Vendor description (summary): Boster Bio Anti-SMAD2 Antibody Picoband® (monoclonal, 3C4) catalog # M00090-3.

Biological background

Biological context: Multifunctional redox sensitive protein with various roles in different cellular compartments. In the nucleus is one of the major chromatin-associated non-histone proteins and acts as a DNA chaperone involved in replication, transcription, chromatin remodeling, V (D)J recombination, DNA repair and genome stability. Proposed to be an universal biosensor for nucleic acids. Promotes host inflammatory response to sterile and infectious signals and is involved in the coordination and integration of innate and adaptive immune responses. In the cytoplasm functions as sensor and/or chaperone for immunogenic nucleic acids implicating the activation of TLR9-mediated immune responses, and mediates autophagy. Acts as danger associated molecular pattern (DAMP) molecule that amplifies immune responses during tissue injury. Released to the extracellular environment can bind DNA, nucleosomes, IL-1 beta, CXCL12, AGER isoform 2/sRAGE, lipopolysaccharide (LPS) and lipoteichoic acid (LTA), and activates cells through engagement of multiple surface receptors. In the extracellular compartment fully reduced HMGB1 (released by necrosis) acts as a chemokine, disulfide HMGB1 (actively secreted) as a cytokine, and sulfonyl HMGB1 (released from apoptotic cells) promotes immunological tolerance. Has proangiogdenic activity. May be involved in platelet activation. Binds to phosphatidylserine and phosphatidylethanolamide. Bound to RAGE mediates signaling for neuronal outgrowth. May play a role in accumulation of expanded polyglutamine (polyQ) proteins such as huntingtin (HTT) or TBP.

Expression and localization notes: cellular localization: Nucleus. Endosome. Secreted. Cell membrane. Peripheral membrane protein. Extracellular side. Chromosome. Cytoplasm. Endoplasmic reticulum-Golgi intermediate compartment., tissue context: Ubiquituous. Expressed in platelets..

Common research applications

• Western blotting (WB): Compare SMAD2 levels across samples and conditions using appropriate loading and biological controls.
• Immunohistochemistry (IHC): Evaluate spatial distribution of SMAD2 in tissue sections, considering fixation and antigen retrieval effects.
• Flow cytometry: Quantify SMAD2-positive populations in single-cell suspensions with appropriate gating and controls.
• ELISA: Use antibody-based detection formats to assess antigen presence or binding in plate-based assays.

Notes for experimental interpretation

• Account for isoforms, post-translational modifications, and sample-specific processing that can shift apparent molecular weight or epitope accessibility.
• Use positive/negative biological controls where possible (e.g., known-expressing cells/tissues, knockdown/knockout models) and include appropriate secondary-only/isotype controls for imaging workflows.

Additional product notes (from provided fields)

• Background: Smad2 (Mothers against decapentaplegic homolog 2), also known as MADR2, MADH2, SMAD family member 2 or SMAD2, is a protein that in humans is encoded by the SMAD2 gene. MAD homolog 2 belongs to the SMAD, a family of proteins similar to the gene products of the Drosophila gene 'mothers against decapentaplegic' (Mad) and the C. elegans gene Sma. Eppert et al. mapped the MADR2 gene close to DPC4 at 18q21, a region which is frequently deleted in colorectal cancers. Riggins et al. mapped the human MADH2 gene to 18q21. Nakao et al. refined the localization of the SMAD2 gene to 18q21.1, approximately 3 Mb proximal to DPC4, by fluorescence in situ hybridization. SMAD2 mediates the signal of the transforming growth factor (TGF)-beta, and thus regulates multiple cellular processes, such as cell proliferation, apoptosis, and differentiation. This protein is recruited to the TGF-beta receptors through its interaction with the SMAD anchor for receptor activation (SARA) protein. In response to TGF-beta signal, this protein is phosphorylated by the TGF-beta receptors.
• Cross reactivity: No cross-reactivity with other proteins.
• Cellular localization: Nucleus. Endosome. Secreted. Cell membrane. Peripheral membrane protein. Extracellular side. Chromosome. Cytoplasm. Endoplasmic reticulum-Golgi intermediate compartment.
• Tissue details: Ubiquituous. Expressed in platelets.
• Research category: Cadherins,Calcium Binding Proteins,Calcium Signaling,Cancer,Cell Adhesion,Cytoskeleton/ECM,Invasion/Microenvironment,Signal Transduction,Signaling Pathway

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.