| Field | Specification |
|---|---|
| Target | |
| Alternative names | Caspase-3; CASP-3; Apopain; Cysteine protease CPP32; CPP-32; Protein Yama; SREBP cleavage activity 1; SCA-1; CASP3; CPP32 |
| UniProt # | |
| Host | |
| Clone | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human Caspase-3 recombinant protein (Position: T67-D175). Human Caspase-3 shares 86% and 90% amino acid (aa) sequence identity with mouse and rat Caspase-3, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
Clone 15G8 is a mouse monoclonal antibody that recognizes caspase-3 (gene CASP3) in human samples and is validated for flow cytometry, ICC/IF, IHC and Western blot. The predicted molecular weight is 31.6 kDa, and the supplier reports an observed band at about 20 kDa.
Caspase-3 is the major executioner caspase of apoptosis. Activated by initiator caspases such as caspase-8 and caspase-9, it cleaves hundreds of cellular proteins, including PARP1, leading to the typical features of apoptotic cell death. Cleaved (active) caspase-3 is one of the most widely used apoptosis markers in Western blot and immunohistochemistry.
| Target | Caspase-3 (gene CASP3; UniProt P42574, human) |
|---|---|
| Clone | 15G8 |
| Host / Clonality / Isotype | Mouse / Monoclonal / Mouse IgG1 |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3 |
| Calculated MW | 31.6 kDa |
| Observed MW | 20 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.5 µg/mL |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL |
| Immunocytochemistry / Immunofluorescence | 2 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells |
Samples with a confirmed band (WB): human placenta tissue, human SW579 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 50 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:10000, ECL detection.
Samples with confirmed staining (IHC): human intestinal cancer tissue, human placenta tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): MCF-7 cells.
Samples with a confirmed signal (flow cytometry): HepG2 cells.
Immunogen
Recombinant human Caspase-3 fragment (Thr67–Asp175), expressed in E. coli. Sequence identity with the mouse and rat orthologs: 86% and 90%, respectively.
Reactivity Notes
The supplier lists reactivity with human. UniProt places caspase-3 in the cytoplasm. Tissue expression noted by UniProt (human): Highly expressed in lung, spleen, heart, liver and kidney. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
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.
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