| Field | Specification |
|---|---|
| Target | |
| Alternative names | Replication factor C subunit 1;Activator 1 140 kDa subunit;A1 140 kDa subunit;Activator 1 large subunit;Activator 1 subunit 1;DNA-binding protein PO-GA;Replication factor C 140 kDa subunit;RF-C 140 kDa subunit;RFC140;Replication factor C large subunit;RFC1;RFC140; |
| Gene ID | |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human RFC1. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes replication factor C subunit 1 (gene RFC1) in human samples and is validated for Western blot, IHC, ICC/IF and flow cytometry. The predicted molecular weight is 128.3 kDa, and the supplier reports an observed band at about 150 kDa.
RFC1 is the largest subunit of replication factor C (RFC), the clamp loader that uses ATP to load the sliding clamp PCNA onto primed DNA. PCNA then tethers DNA polymerases δ and ε for processive DNA synthesis, so RFC is essential for DNA replication and repair. RFC1 binds the primer–template junction, and intronic repeat expansions in RFC1 cause CANVAS, a late-onset ataxia.
| Target | Replication factor C subunit 1 (gene RFC1; UniProt P35251, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg thimerosal; 0.01 mg NaN3; plus stabilizers |
| Calculated MW | 128.3 kDa |
| Observed MW | 150 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 (Human) |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human 293T cells, human HeLa cells, human HepG2 cells, human Raji cells, human K562 cells, human Caco-2 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, 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 (IHC): human mammary cancer 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 citrate buffer (pH 6).
Samples with confirmed staining (ICC/IF): U2OS cells.
Samples with a confirmed signal (flow cytometry): HeLa cells.
Immunogen
Synthetic peptide from the N-terminal region of human RFC1.
Reactivity Notes
The supplier lists reactivity with human. UniProt places replication factor C subunit 1 in the nucleus. Tissue expression noted by UniProt (human): Wide tissue distribution. 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.
