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PRODUCT CODE: ER1901-97

Cytokeratin 20 Rabbit Polyclonal Antibody (ER1901-97)

Applications

  • WB

  • IHC-P

  • FC

REACTIVITY

  • Human

  • Mouse

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Western blot analysis of Cytokeratin 20 on mouse colon tissue lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-97, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
  • Western blot analysis of Cytokeratin 20 on mouse colon tissue lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-97, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
  • Immunohistochemical analysis of paraffin-embedded human tonsil tissue using anti-Cytokeratin 20 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-97, 1/200) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human colon tissue using anti-Cytokeratin 20 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-97, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human skin tissue using anti-Cytokeratin 20 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-97, 1/200) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human small intestine tissue using anti-Cytokeratin 20 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-97, 1/200) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Flow cytometric analysis of Cytokeratin 20 was done on JAR cells. The cells were fixed, permeabilized and stained with the primary antibody (ER1901-97, 1/50) (red). After incubation of the primary antibody at room temperature for an hour, the cells were stained with a Alexa Fluor 488-conjugated Goat anti-Rabbit IgG Secondary antibody at 1/1000 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Western blot analysis of Cytokeratin 20 on mouse colon tissue lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-97, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.

Applications

  • WB

  • IHC-P

  • FC

REACTIVITY

  • Human

  • Mouse

SPECIFICATIONS

Product Type

Rabbit polyclonal primary

Product Name

Cytokeratin 20 Rabbit Polyclonal Antibody (ER1901-97)

Immunogen

Synthetic peptide within c-terminal human cytokeratin 20.

Host

Rabbit

Positive Control

Mouse colon tissue lysates, human tonsil tissue, human colon tissue, human skin tissue, human small intestine tissue, JAR.

Conjugation

Unconjugated

Clonality

Polyclonal

PROPERTIES

Form

Liquid

Storage Condition

Store at +4C after thawing. Aliquot store at -20C. Avoid repeated freeze / thaw cycles.

Storage Buffer

1*PBS (pH7.4), 0.2% BSA, 50% Glycerol. Preservative: 0.05% Sodium Azide.

Concentration

1 ug/ul

PURIFICATION

Peptide affinity purified.

MOLECULAR WEIGHT

48 kDa

Isotype

IgG

APPLICATION DILUTION

  • WB:1:500-1:2,000

  • IHC-P:1:50-1:200

  • FC:1:50-1:100

TARGET

UNIPROT #

P35900

PROTEIN NAME

Cytokeratin 20

SYNONYMS

CK 20 antibody; CK-20 antibody; CK20 antibody; Cytokeratin-20 antibody; Cytokeratin20 antibody; K1C20_HUMAN antibody; K20 antibody; KA20 antibody; Keratin 20 antibody; keratin 20, type I antibody; keratin 21, rat, homolog of antibody; Keratin antibody; Keratin type I cytoskeletal 20 antibody; Keratin-20 antibody; Keratin20 antibody; KRT 20 antibody; KRT 21 antibody; KRT20 antibody; KRT21 antibody; MGC35423 antibody; OTTHUMP00000164518 antibody; Protein IT antibody; type I cytoskeletal 20 antibody

SEQUENCE SIMILARITIES

Belongs to the intermediate filament family.

TISSUE SPECIFICITY

Expressed predominantly in the intestinal epithelium. Expressed in luminal cells of colonic mucosa. Also expressed in the Merkel cells of keratinized oral mucosa; specifically at the tips of some rete ridges of the gingival mucosa, in the basal layer of the palatal mucosa and in the taste buds of lingual mucosa.

DEVELOPMENTAL STAGE

First detected at embryonic week 8 in individual 'converted' simple epithelial cells of the developing intestinal mucosa. In later fetal stages, synthesis extends over most goblet cells and a variable number of villus enterocytes. In the developing gastric and intestinal mucosa, expressed in all enterocytes and goblet cells as well as certain 'low-differentiated' columnar cells, whereas the neuroendocrine and Paneth cells are negative.

POST-TRANSLATIONAL MODIFICATION

Hyperphosphorylation at Ser-13 occurs during the early stages of apoptosis but becomes less prominent during the later stages. Phosphorylation at Ser-13 also increases in response to stress brought on by cell injury (By similarity).; Proteolytically cleaved by caspases during apoptosis. Cleavage occurs at Asp-228.

SUBCELLULAR LOCATION

Cytoplasm.

FUNCTION

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. This cytokeratin is a major cellular protein of mature enterocytes and goblet cells and is specifically expressed in the gastric and intestinal mucosa. The type I cytokeratin genes are clustered in a region of chromosome 17q12-q21.