WB result of Cytokeratin 1 Recombinant Rabbit mAb
Primary antibody: Cytokeratin 1 Recombinant Rabbit mAb at 1/1000 dilution
Lane 1: A431 whole cell lysate 20 µg
Lane 2: HaCaT whole cell lysate 20 µg
Secondary antibody: Goat Anti- rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 66 kDa
Observed MW: 66 kDa
Cytokeratin 1 Recombinant Rabbit mAb,PBS Only (SDT-3225-22)
Cytokeratin 1 Recombinant Rabbit mAb,PBS Only (SDT-3225-22)
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Product Details
Product Details
Product Specification
| Host | Rabbit |
| Antigen | Cytokeratin 1 |
| Synonyms | Keratin, type II cytoskeletal 1; 67 kDa cytokeratin; Cytokeratin-1 (CK-1); Hair alpha protein; Keratin-1 (K1); Type-II keratin Kb1; KRTA; KRT1 |
| Immunogen | Recombinant Protein |
| Location | Cytoplasm, Cell membrane |
| Accession | P04264 |
| Clone Number | SDT-3225-22 |
| Antibody Type | Recombinant mAb |
| Isotype | IgG |
| Application | WB, IHC-P, IF |
| Reactivity | Hu, Ms, Rt |
| Positive Sample | A431, HaCaT, mouse skin |
| Purification | Protein A |
| Concentration | 1 mg/ml |
| Conjugation | Unconjugated |
| Physical Appearance | Liquid |
| Storage Buffer | PBS |
| Stability & Storage | 12 months from date of receipt / reconstitution, 4 °C as supplied |
Dilution
| application | dilution | species |
| WB | 1:2000-1:4000 | Hu, Ms |
| IHC-P | 1:500-1: 2000 | Hu, Ms, Rt |
| IF | 1:500 | Hu |
Background
Cytokeratin 1 (CK1), encoded by the KRT1 gene, is a type II cytokeratin that heterodimerizes with cytokeratin 10 (CK10) to form intermediate filaments specifically expressed in the suprabasal layers of stratified squamous epithelia, including skin, oral mucosa, and esophagus. This 67-kDa protein plays a critical structural role in maintaining mechanical integrity of keratinocytes and protecting epithelial tissues from mechanical stress, osmotic shock, and apoptosis. CK1 contains a central α-helical rod domain flanked by non-helical head and tail domains, with the tail domain undergoing extensive post-translational modifications including phosphorylation and glycation that regulate filament assembly and keratinocyte differentiation. Mutations in KRT1 cause epidermolytic hyperkeratosis (EHK), a severe autosomal dominant ichthyosis characterized by epidermal blistering and hyperkeratosis due to keratin filament collapse and keratinocyte fragility. Beyond its structural functions, CK1 participates in cell signaling, wound healing, and stress response pathways, and serves as an important histopathological marker for distinguishing epithelial-derived carcinomas from mesenchymal tumors. The protein's expression pattern makes it clinically valuable for identifying squamous cell carcinomas and stratified epithelial origins in diagnostic pathology.
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Western Blot
WB result of Cytokeratin 1 Recombinant Rabbit mAb
Primary antibody: Cytokeratin 1 Recombinant Rabbit mAb at 1/1000 dilution
Lane 1: mouse brain lysate 20 µg
Lane 2: mouse skin lysate 20 µg
Negative control: mouse brain lysate
Secondary antibody: Goat Anti- rabbit IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 66 kDa
Observed MW: 66 kDa
Immunohistochemistry
IHC shows positive staining in paraffin-embedded human cervical squamous cell carcinoma. Anti-Cytokeratin 1 antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human esophageal cancer. Anti-Cytokeratin 1 antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human oral squamous cell carcinoma. Anti-Cytokeratin 1 antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Negative control: IHC shows negative staining in paraffin-embedded human kidney. Anti-Cytokeratin 1 antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded mouse skin. Anti-Cytokeratin 1 antibody was used at 1/2000 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Negative control: IHC shows negative staining in paraffin-embedded mouse cerebral cortex. Anti-Cytokeratin 1 antibody was used at 1/2000 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded rat skin. Anti-Cytokeratin 1 antibody was used at 1/2000 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Negative control: IHC shows negative staining in paraffin-embedded rat cerebral cortex. Anti-Cytokeratin 1 antibody was used at 1/2000 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Immunofluorescence
IF shows positive staining in paraffin-embedded human tonsil. Anti- Cytokeratin 1 antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. Counterstained with DAPI (Blue). Heat mediated antigen retrieval with EDTA buffer pH9.0 was performed before commencing with IF staining protocol.
