| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | High mobility group protein B1; High mobility group protein 1; HMG-1; HMGB1; HMG1 |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human HMGB1, identical to the related mouse and rat sequences. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-HMGB1 Antibody Picoband® (monoclonal, 5H3) is an antibody for HMGB1 detection raised in Mouse (Monoclonal, clone Clone: 5H3, Mouse IgG2b), with reported reactivity: Human,Monkey,Mouse,Rat. Commonly used in WB, IHC, Flow Cytometry, ELISA workflows.
Key elements and design rationale
- Target: HMGB1 (high mobility group box 1); UniProt: P09429
- Antibody format: Mouse, Monoclonal, clone Clone: 5H3, Mouse IgG2b
- Molecular weight: 25 kDa
- Applications: WB, IHC, Flow Cytometry, ELISA
Vendor description (summary): Boster Bio Anti-HMGB1 Antibody Picoband® (monoclonal, 5H3) catalog # M00066-2.
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 HMGB1 levels across samples and conditions using appropriate loading and biological controls.
- Immunohistochemistry (IHC): Evaluate spatial distribution of HMGB1 in tissue sections, considering fixation and antigen retrieval effects.
- Flow cytometry: Quantify HMGB1-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)
- Specificity: No cross reactivity with other proteins.
- Background: High mobility group box 1 protein, also known as high-mobility group protein 1 (HMG-1) and amphoterin, is a protein that in humans is encoded by the HMGB1 gene. This gene encodes a protein that belongs to the High Mobility Group-box superfamily. The encoded non-histone, nuclear DNA-binding protein regulates transcription, and is involved in organization of DNA. This protein plays a role in several cellular processes, including inflammation, cell differentiation and tumor cell migration. Multiple pseudogenes of this gene have been identified. Alternative splicing results in multiple transcript variants that encode the same protein.
- 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.
