Human Cytokeratin 18 Antibody

Detection of Human Cytokeratin 18 by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and A431 human epithelial carcinoma cell line. PVDF membrane was probed with 0.1 µg/mL of Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). A specific band was detected for Cytokeratin 18 at approximately 46 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Human Cytokeratin 18 by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line (Cytokeratin 18 positive) and MOLT‑4 human acute lymphoblastic leukemia cell line (Cytokeratin 18 negative). PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). A specific band was detected for Cytokeratin 18 at approximately 45 kDa (as indicated). GAPDH (AF5718) is shown as a loading control. This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Cytokeratin 18 in HeLa Human Cell Line. Cytokeratin 18 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) at 5 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; NL010) and counterstained with DAPI (blue). Specific staining was localized to cytoskeletal fibers. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Cytokeratin 18 in Human Breast Cancer Tissue. Cytokeratin 18 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) at 3 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (CTS013). Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to intermediate filaments. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Detection of Human Cytokeratin 18 by Simple Western^TM. Simple Western lane view shows lysates of HeLa human cervical epithelial carcinoma cell line and A431 human epithelial carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for Cytokeratin 18 at approximately 57 kDa (as indicated) using 1 µg/mL of Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Western Blot Shows Human Cytokeratin 18 Specificity by Using Knockout Cell Line. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and human KRT-18 knockout HeLa human cervical epithelial carcinoma cell line (KO). PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). A specific band was detected for Cytokeratin 18 at approximately 48 kDa (as indicated) in the parental HeLa human cervical epithelial carcinoma cell line, but is not detectable in knockout HeLa human cervical epithelial carcinoma cell line. GAPDH (AF5718) is shown as a loading control. This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Detection of Cytokeratin 18 in HeLa Cells (Positive) and HeLa KRT18 Knockout (Negative) Control. Cytokeratin 18 was detected in immersion fixed HeLa Human Cervical Epithelial Carcinoma Cells (Positive) and absent in HeLa KRT18 Knockout (Negative) Control using Sheep Anti-Human Cytokeratin 18 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7619) at 5 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.