| Field | Specification |
|---|---|
| Target | |
| Alternative names | DNA repair-scaffolding protein; Scaffolding protein involved in DNA repair; SPIDR; KIAA0146 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human SPIDR recombinant protein (Position: E273-E904). Human SPIDR shares 66.7% amino acid (aa) sequence identity with mouse SPIDR. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes DNA repair-scaffolding protein (gene SPIDR) in human, mouse and rat samples and is validated for Western blot, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 100.3 kDa, and the supplier reports an observed band at about 95 kDa.
DNA repair-scaffolding protein (SPIDR) is a component of the Shu complex that promotes homologous recombination. By regulating RPA on single-stranded DNA, it stabilizes RAD51 and DMC1 filaments, which is important for certain forms of DNA double-strand break repair and for meiotic recombination.
| Target | DNA repair-scaffolding protein (gene SPIDR; UniProt Q14159, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 100.3 kDa |
| Observed MW | 95 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 | 0.25–0.5 µg/mL (Human, Mouse, Rat) |
|---|---|
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg /1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human RT4 cells, human MCF-7 cells, human SIHA cells, rat brain tissue, mouse brain 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.
Samples with confirmed staining (ICC/IF): U2OS cells.
Samples with a confirmed signal (flow cytometry): SiHa cells.
Immunogen
Recombinant human SPIDR fragment (Glu273–Glu904), expressed in E. coli. Sequence identity with the mouse ortholog: 66.7%.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places DNA repair-scaffolding protein in the chromosome and nucleus. 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.
