| Field | Specification |
|---|---|
| Target | |
| Alternative names | Fatty acid-binding protein, heart; Fatty acid-binding protein 3; Heart-type fatty acid-binding protein; H-FABP; Fabp3; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E. coli-derived rat Cardiac FABP recombinant protein (Position: A2-A133). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes fatty acid-binding protein, heart (gene Fabp3) in human, mouse and rat samples and is validated for ELISA and Western blot. The predicted molecular weight is 14.8 kDa, and the supplier reports an observed band at about 15 kDa.
Heart fatty acid-binding protein (FABP3, H-FABP) is a small cytosolic protein abundant in cardiac and skeletal muscle. It carries long-chain fatty acids to sites of oxidation for energy production. Because it is released quickly from damaged cardiomyocytes, H-FABP is studied as an early marker of myocardial injury.
| Target | Fatty acid-binding protein, heart (gene Fabp3; UniProt P07483, rat) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3; plus stabilizers |
| Calculated MW | 14.8 kDa |
| Observed MW | 15 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 |
|---|---|
| ELISA (capture antibody) | 1–5 µg/mL |
Samples with a confirmed band (WB): rat heart tissue, mouse heart tissue.
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, 30 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 1:5000, ECL detection.
Immunogen
Recombinant rat Cardiac FABP fragment (Ala2–Ala133), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places fatty acid-binding protein, heart in the cytoplasm. Tissue expression noted by UniProt (rat): Heart, but also skeletal muscle, kidney, brain and mammary gland. 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.
