Cytokeratin 18 Antibody [Alexa Fluor® 750]

• Reactivity: Hu
• Applications: WB, IHC, ICC/IF, KO
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Alexa Fluor 750

Cytokeratin 18 Antibody [Alexa Fluor® 750] Summary

• Immunogen: E. coli-derived recombinant human Cytokeratin 18
  Ala239-Asp397
  Accession # P05783
• Specificity: Detects human Cytokeratin 18 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human Cytokeratin 14 (KRT14) is observed.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry
  • Immunohistochemistry
  • Knockout Validated
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Cytokeratin 18 Antibody [Alexa Fluor® 750]

• Cell proliferation-inducing gene 46 protein
• cell proliferation-inducing protein 46
• CK-18
• CYK18
• Cytokeratin 18
• cytokeratin-18
• K18
• Keratin 18
• keratin, type I cytoskeletal 18
• keratin-18
• KRT18

Background

Cytokeratin 18; also KRT-18 (Keratin, type I cytoskeletal 18), Cell proliferation-inducing gene 46 and Keratin-18) is a 44-46 kDa Class I (large keratins of acidic pH) member of the intermediate filament family of proteins. Individual keratins are always expressed in tandem with a second keratin, and these are found in all epithelial cells. The class I Cytokeratin 18 heterodimerizes/polymerizes with 50-52 kDa class II KRT-8 to form 8-10 nm filaments in single strata plus hepatic epithelia. Cytokeratin 18 and -8 are the first keratins to appear in the mammalian embyro. In the adult, Cytokeratin 18 appears to participate in subtractions and additions to the plasma membrane. In this regard, a number of intracellular proteins interact with Cytokeratin 18, including 14-3-3, HSPc70 and Mrj. Cytokeratin 18 may also be O‑glycosylated, and when so, serves to promote Akt-1 activity, thus protecting against apoptosis. Human Cytokeratin 18 is 430 amino acids (aa) in length. It contains an N-terminal "head" region (aa 1-79), a subsequent "rod" region (aa 80-387) with two coiled segments, and a C-terminal tail region. Cytokeratin 18 possesses at least 19 utilized phosphorylation sites plus five acetylated Lys residues. There are multiple isoforms that range from 20-40 kDa in size and are the result of caspase cleavage. A principal cleavage site occurs after Asp238. Over aa 239-397, human Cytokeratin 18 shares 86% aa sequence identity with mouse Cytokeratin 18.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.