Anti-Cytokeratin 19 antibody

Anti-Cytokeratin 19 antibody

• 概述

• 产品描述Cytokeratins comprise a diverse group of intermediate filament proteins (IFPs) that are expressed as pairs in both keratinized and non-keratinized epithelial tissue. Cytokeratins play a critical role in differentiation and tissue specialization and function to maintain the overall structural integrity of epithelial cells and have been found to be useful markers of tissue differentiation, which is directly applicable to the characterization of malignant tumors. For example, many types of cancer cells express Cytokeratin 19 (CK19), an epithelial cytoskeletal protein within the suprabasal squamous epithelium. Cytokeratin 19 is a specific marker of moderate to severe dysplasia and carcinoma in situ in oral cavity squamous epithelium, and measurement of Cytokeratin 19 may be a useful marker in diagnosing hepatoma. Cytokeratin 19 fragment levels in serum have been documented as a marker for lung cancer. Clinical investigations have suggested that serum CYFRA 21-1, a fragment of Cytokeratin 19, may be among the most useful tumor markers.
• 产品名称Anti-Cytokeratin 19 antibody
• 分子量44 kDa
• 种属反应性Human,Mouse,Rat
• 验证应用WB,ICC,IHC-P,FC
• 抗体类型兔多抗
• 免疫原Recombinant protein within Human Cytokeratin 19 aa 100-350.
• 偶联Non-conjugated

• 性能

• 形态Liquid
• 浓度1 mg/ml.
• 存放说明Store at +4℃ after thawing. Aliquot store at -20℃. Avoid repeated freeze / thaw cycles.
• 存储缓冲液1*PBS (pH7.4), 0.2% BSA, 50% Glycerol. Preservative: 0.05% Sodium Azide.
• 亚型IgG
• 纯化方式Protein affinity purified.
• 亚细胞定位Cytoplasm.
• 其它名称40 kDa keratin intermediate filament antibody
  CK 19 antibody
  CK-19 antibody
  CK19 antibody
  Cytokeratin 19 antibody
  Cytokeratin-19 antibody
  K19 antibody
  K1C19_HUMAN antibody
  K1CS antibody
  Keratin 19 antibody
  Keratin type I 40 kD antibody
  Keratin type I 40kD antibody
  Keratin type I cytoskeletal 19 antibody
  Keratin, type I cytoskeletal 19 antibody
  Keratin, type I, 40 kd antibody
  Keratin-19 antibody
  KRT19 antibody
  MGC15366 antibody
  more

• 应用

  WB:1:2,000-1:20,000
  ICC:1:50-1:200
  IHC-P:1:50-1:200
  FC:1:50-1:100

•  

  

  Fig1: Western blot analysis of Cytokeratin 19 on rat lung tissue lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody was used at a 1:20,000 dilution in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
  Positive control:
  Lane 1: Rat lung tissue lysate
  Lane 2: MCF-7 cell lysate
  Lane 3: Mouse lung tissue lysate

   

  

  Fig2: ICC staining Cytokeratin 19 in HepG2 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with Cytokeratin 19 polyclonal antibody at a dilution of 1:100 for 1 hour at room temperature, washed with PBS. Alexa Fluorc™ 488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/100 dilution. The nuclear counter stain is DAPI (blue).

   

  

  Fig3: ICC staining Cytokeratin 19 in MCF-7 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with Cytokeratin 19 polyclonal antibody at a dilution of 1:200 for 1 hour at room temperature, washed with PBS. Alexa Fluorc™ 488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/100 dilution. The nuclear counter stain is DAPI (blue).

   

  

  Fig4: ICC staining Cytokeratin 19 in SK-Br-3 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with Cytokeratin 19 polyclonal antibody at a dilution of 1:50 for 1 hour at room temperature, washed with PBS. Alexa Fluorc™ 488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/100 dilution. The nuclear counter stain is DAPI (blue).

   

  

  Fig5: Immunohistochemical analysis of paraffin-embedded rat kidney tissue using anti-Cytokeratin 19 antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 20 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the antibody at 1/200 dilution, for 30 minutes at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chrogen. Counter stained with hematoxylin and mounted with DPX.

   

  

  Fig6: Immunohistochemical analysis of paraffin-embedded human lung cancer tissue using anti-Cytokeratin 19 antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 20 minutes. The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the antibodat 1/200 dilution, for 30 minutes at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chrogen. Counter stained with hematoxylin and mounted with DPX.

   

  

  Fig7: Immunohistochemical analysis of paraffin-embedded human appendix tissue using anti-Cytokeratin 19 antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 20 minutes. The tissues were blocke

   

  

  Fig8: Immunohistochemical analysis of paraffin-embedded human breast tissue using anti-Cytokeratin 19 antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 20 minutes. The tissues were blocked

   

  

  Fig9: Immunohistochemical analysis of paraffin-embedded mouse colon tissue using anti-Cytokeratin 19 antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 20 minutes. The tissues were blocked i

   

  

  Fig10: Flow cytometric analysis of Cytokeratin 19 was done on MCF-7 cells. The cells were fixed, permeabilized and stained with Cytokeratin 19 antibody at 1/100 dilution (red) compared with an unlabelled control (cells without incubation with primary anti

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