anti-Cytokeratin 20 antibody [SQab1737]

anti-Cytokeratin 20 antibody [SQab1737] for Flow cytometry,ICC/IF,IHC-Formalin-fixed paraffin-embedded sections,Immunoprecipitation,Western blot and Human

CK7/CK20 Carcinoma Study antibody


Product Description Recombinant Rabbit Monoclonal antibody [SQab1737] recognizes Cytokeratin 20
Tested Reactivity Hu
Tested Application FACS, ICC/IF, IHC-P, IP, WB
Host Rabbit
Clonality Monoclonal
Clone SQab1737
Isotype IgG
Target Name Cytokeratin 20
Antigen Species Human
Immunogen Synthetic peptide around the C-terminus of Human Cytokeratin 20.
Conjugation Un-conjugated
Alternate Names KRT21; CK20; K20; CD20; CK-20; Keratin-20; Cytokeratin-20; Keratin, type I cytoskeletal 20; Protein IT

Application Instructions

Application Suggestion
Tested Application Dilution
FACS1:10 - 1:1000
ICC/IF1:50 - 1:2000
IHC-P1:800 - 1:1600
WB1:2000 - 1:10000
Application Note IHC-P: Antigen Retrieval: Boil tissue section in Tris/EDTA buffer (pH 9.0).
* The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.


Form Liquid
Purification Purification with Protein A.
Buffer PBS, 0.01% Sodium azide, 40% Glycerol and 0.05% BSA.
Preservative 0.01% Sodium azide
Stabilizer 40% Glycerol and 0.05% BSA
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 54474 Human KRT20

Swiss-port # P35900 Human Keratin, type I cytoskeletal 20

Gene Symbol KRT20
Gene Full Name keratin 20, type I
Background Cytokeratin 20 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. [provided by RefSeq, Jul 2008]
Function Cytokeratin 20 plays a significant role in maintaining keratin filament organization in intestinal epithelia. When phosphorylated, plays a role in the secretion of mucin in the small intestine. [UniProt]
Highlight Related Antibody Duos and Panels:
ARG30318 CK7 / CK20 Carcinoma Antibody Duo
Related products:
Cytokeratin 20 antibodies; Cytokeratin 20 Duos / Panels; Anti-Rabbit IgG secondary antibodies;
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Research Area CK7/CK20 Carcinoma Study antibody
Calculated MW 48 kDa
PTM 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. [UniProt]

Images (5) Click the Picture to Zoom In

  • ARG66248 anti-Cytokeratin 20 antibody [SQab1737] ICC/IF image

    Immunofluorescence: HT-29 cells were fixed with 4% paraformaldehyde for 30 min at RT, permeabilized with 0.1% Triton X-100 for 10 min at RT then blocked with 10% goat serum for half an hour at RT. Samples were stained with ARG66248 anti-Cytokeratin 20 antibody [SQab1737] (green) at 1:200, 4°C.

  • ARG66248 anti-Cytokeratin 20 antibody [SQab1737] FACS image

    Flow Cytometry: HT-29 cells stained with ARG66248 anti-Cytokeratin 20 antibody [SQab1737] (Red). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% TritonX-100 for 15 min. The cells were then incubated in the primary antibody at 1:1000 dilution in 1x PBS/1% BSA for 30 min at 4°C. The secondary antibody used was a Goat anti-rabbit Alexa Fluor® 488 (IgG H+L) at 1:2000 dilution for 20 min at 4°C. Unlabelled sample (Blue) was used as a control.

  • ARG66248 anti-Cytokeratin 20 antibody [SQab1737] IHC-P image

    Immunohistochemistry: Formalin-fixed and paraffin-embedded colonic adenocarcinoma stained with ARG66248 anti-Cytokeratin 20 antibody [SQab1737] at 1:800. Antigen Retrieval: Boil tissue section in Tris/EDTA buffer (pH 9.0).

  • ARG66248 anti-Cytokeratin 20 antibody [SQab1737] WB image

    Western blot: 10 μg of HCT-116 and HT-29 cell lysates stained with ARG66248 anti-Cytokeratin 20 antibody [SQab1737] at 1:5000 dilution.

  • ARG66248 anti-Cytokeratin 20 antibody [SQab1737] IP image

    Immunoprecipitation: Cytokeratin 20 was immunoprecipitated from 0.5 mg of HT-29 lysate with ARG66248 anti-Cytokeratin 20 antibody [SQab1737] at 1:50 dilution.

    1. IP by using ARG66248 in HT-29 whole cell lysate
    2. PBS instead of ARG66248 in HT-29 whole cell lysate
    3. 10 µg of HT-29 whole cell lysate (input)