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Invitrogen
Human Cytokeratin 18 Control Fragment Recombinant Protein
Product Details
RP-91404
Applications
Tested Dilution
Publications
Product Specifications
Species
Human
Expression System
E. coli
Amino acid sequence
IEESTTVVTTQSTEVGAAKAMLTELTRTVQFLEINLDSMRNLKASLENSLREVVARYALQMEQLNGILLHLESELAQTWAEGQCQAQEYQALLNIKVKLEAAIATYRRLLEDG
Tag
His-ABP-tag
Class
Recombinant
Type
Protein
Purity
>80% by SDS-PAGE and Coomassie blue staining
Conjugate
Form
Liquid
Concentration
≥5.0 mg/mL
Purification
purified
Storage buffer
1M urea/PBS, pH 7.4
Contains
no preservative
Storage conditions
-20° C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
Highest antigen sequence indentity to the following orthologs: Mouse (76%), Rat (76%).
This recombinant protein control fragment may be used for blocking experiments. In IHC/ICC and WB experiments, we recommend a 100x molar excess of the protein fragment control based on the concentration and the molecular weight. Pre-incubate the antibody-protein control fragment mixture for 30 min at room temperature.
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; type I cytoskeletal 18
Gene Aliases: CK-18; CYK18; K18; KRT18; PIG46
UniProt ID: (Human) P05783
Entrez Gene ID: (Human) 3875
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