Invitrogen™ Cytokeratin 18 Polyclonal Antibody

Catalog No.	Quantity
PIPA595416	100 μg

Catalog No. PIPA595416 Supplier Invitrogen™ Supplier No. PA595416

Description

Rabbit Polyclonal Antibody

Human Cytokeratin 18 shares 87.7% and 85.9% amino acid (aa) sequence identity with mouse and rat Cytokeratin 18, respectively. Reconstitute with 0.2 mL of distilled water to yield a concentration of 500 μg/mL. Positive Control - WB: human placenta tissue, human CACO-2 whole cell, human A549 whole cell, human A431 whole cell, rat liver tissue, rat thymus tissue, mouse liver tissue, mouse thymus tissue. IHC: mouse intestine tissue, mouse kidney tissue, rat intestine tissue, rat kidney tissue, human intestinal cancer tissue, human placenta tissue, human colon cancer tissue, human lung cancer tissue, human ovarian cancer tissue, human pancreas cancer tissue, human liver cancer tissue, human stomach cancer tissue. Flow: A431 cell. Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Cytokeratin 18 (Keratin 18, KRT18, type I cytoskeletal 18) belongs to the type A (acidic) subfamily of low molecular weight keratins, exists in combination with cytokeratin 8. Tissues from gastrointestinal tract, respiratory tract and urogenital tract, as well as endocrine and exocrine tissues and mesothelial cells are positive for cytokeratin 18. Further, cytokeratin 18 is found primarily in non-squamous epithelia and is present in a majority of adenocarcinomas and ductal carcinomas, but not in squamous cell carcinomas. Hepatocellular carcinomas express only cytokeratins 8 and 18. Mutations in the cytokeratin 18 gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for the cytokeratin 18 gene. Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies. The cytokeratin antibodies are not only of assistance in the differential diagnosis of tumors using immunohistochemistry on tissue sections, but are also a useful tool in cytopathology and flow cytometric assays.

Specifications

• Antigen: Cytokeratin 18
• Applications: Flow Cytometry, Immunohistochemistry (Frozen), Immunohistochemistry (Paraffin), Western Blot, Immunocytochemistry
• Classification: Polyclonal
• Concentration: 500 μg/mL
• Conjugate: Unconjugated
• Formulation: PBS with 4mg trehalose and 0.05mg sodium azide
• Gene: KRT18
• Gene Accession No.: P05783, P05784, Q5BJY9
• Gene Alias: cb83; Cell proliferation-inducing gene 46 protein; CK 18; CK18; CK-18; CYK18; cytokeratin 18; cytokeratin endo B; cytokeratin type -1; DAPK-1; Cytokeratin18; cytokeratin-18; dapk1; dorsal aorta proneprin kinesin-1; DreK18; Endo B; I79_023185; K 18; K18; keratin 18; keratin 18, type I; keratin 18a, tandem duplicate 1; keratin complex 1, acidic, gene 18; keratin D; Keratin, type I cytoskeletal 18; Keratin18; keratin-18; Kerd; KRT 18; Krt1-18; KRT18; krt18 {ECO:0000250; krt18a.1; LOC100008885; PIG46; sb:cb83; type I cytoskeletal 18; UniProtKB:P05783}; wu:fa13f02; wu:fb36b04
• Gene Symbols: KRT18
• Host Species: Rabbit
• Immunogen: E.coli-derived human Cytokeratin 18 recombinant protein (Position: E204-H430).
• Purification Method: Affinity chromatography
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 16668, 294853, 3875
• Target Species: Human, Mouse, Rat
• Content And Storage: -20°C
• Product Type: Antibody
• Form: Lyophilized
• Isotype: IgG

Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov