| Field | Specification |
|---|---|
| Target | |
| Alternative names | Cytochrome c1, heme protein, mitochondrial; Complex III subunit 4; Complex III subunit IV; Cytochrome b-c1 complex subunit 4; Ubiquinol-cytochrome-c reductase complex cytochrome c1 subunit; Cytochrome c-1; CYC1 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human CYC1 recombinant protein (Position: S85-K325). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes cytochrome c1, heme protein, mitochondrial (gene CYC1) in human samples and is validated for Western blot, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 35.4 kDa, and the supplier reports an observed band at about 33 kDa.
Cytochrome c1 (CYC1) is a heme-containing subunit of respiratory complex III (the cytochrome bc1 complex) in the inner mitochondrial membrane. It receives electrons from the Rieske iron-sulfur protein and passes them to cytochrome c, contributing to the proton gradient that drives ATP synthesis. It is studied in mitochondrial respiration and oxidative phosphorylation.
| Target | Cytochrome c1, heme protein, mitochondrial (gene CYC1; UniProt P08574, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 35.4 kDa |
| Observed MW | 33 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) |
|---|---|
| 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 A431 cells, human HeLa cells, human MCF-7 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 (ICC/IF): A549 cells.
Samples with a confirmed signal (flow cytometry): MCF-7 cells.
Immunogen
Recombinant human CYC1 fragment (Ser85–Lys325), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human. UniProt places cytochrome c1, heme protein, mitochondrial in the mitochondrion inner membrane. 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.
Yiheng Chen et al. (2025) Cordycepin promotes the survival of random-pattern skin flaps via autophagy in a rat model. Cellular Signalling. 10.1016/j.cellsig.2025.111890
