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For research use only.

Verified Samples Verified Samples in WB: Mouse stomach
Verified Samples in IHC: Rat kidney, Human liver cancer, Mouse kidney
Dilution WB 1:500-1:2000,  IHC 1:50-1:200
Isotype IgG
Host Rabbit
Reactivity Human,  Mouse,  Rat
Applications WB,  IHC
Clonality Polyclonal
Immunogen Recombinant fusion protein of human KRT19 (NP_002267.2).
Abbre KRT19
Synonyms CK19,  K19,  K1CS,  KRT19
Swissprot
Calculated MW 44 kDa
Observed MW 46 kDa
The actual band is not consistent with the expectation.

Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include:

1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein.

2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes.

3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1.

4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids).

5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers.

If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane.

Cellular Localization Cytoplasm
Concentration 1 mg/mL
Buffer Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer and 50% glycerol.
Purification Method Affinity purification
Research Areas Cancer,  Signal Transduction
Conjugation Unconjugated
Storage Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles.
Shipping The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended.
background The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells. It is specifically expressed in the periderm, the transiently superficial layer that envelopes the developing epidermis. The type I cytokeratins are clustered in a region of chromosome 17q12-q21.
Other Clones

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Unconjugated

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