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Invitrogen
Human Cytokeratin 18 Recombinant Protein
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Product Details
RP-75534
Product Specifications
Species
Human
Expression System
E. coli
Amino acid sequence
Amino acids Met1- His430 containing an N-terminal His-tag
Tag
His-tag
Class
Recombinant
Type
Protein
Purity
>95%, by SDS-PAGE under reducing conditions
Conjugate
Form
Liquid
Concentration
0.22 mg/mL
Amount
100 µg
Purification
purified
Storage buffer
tris HCl, pH 8, with 50% glycerol, 5mM EDTA
Contains
no preservative
Storage conditions
-20°C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
This product contains purified recombinant human Cytokeratin-18 protein with an N-terminal hexahistidine tag.
This product may be used as a positive control in many immunological assays.
Target Information
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: Cell proliferation-inducing gene 46 protein; CK 18; CK-18; cytokeratin 18; Cytokeratin-18; Cytokeratin18; K 18; K18; keratin 18, type I; Keratin, type I cytoskeletal 18; Keratin-18; Keratin18; KRT 18; ORF; PIG46; type I cytoskeletal 18; unnamed protein product
Gene Aliases: CK-18; CYK18; K18; KRT18; PIG46
UniProt ID: (Human) P05783
Entrez Gene ID: (Human) 3875
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