Cytokeratin 20 Rabbit Polyclonal Antibody
Overview
Product Name
Cytokeratin 20 Rabbit Polyclonal Antibody
Antibody Type
Rabbit Polyclonal Antibody
Immunogen
Synthetic peptide within Human Cytokertin 20 aa 375-424 / 424.
Species Reactivity
Human, Mouse, Rat
Validated Applications
WB, IHC-P, IF-Cell, FC
Molecular Weight
49 kDa
Positive Control
Human small intestine tissue lysates, mouse colon tissue lysates, SW480, human colon tissue, Human small intestine tissue, mouse colon tissue, mouse small intestine tissue, JAR.
Conjugation
unconjugated
RRID
Product Features
Form
Liquid
Concentration
Storage Instructions
Shipped at 4℃. Store at +4℃ short term (1-2 weeks). It is recommended to aliquot into single-use upon delivery. Store at -20℃ long term.
Storage Buffer
1*PBS (pH7.4), 0.2% BSA, 50% Glycerol. Preservative: 0.05% Sodium Azide.
Isotype
IgG
Purification Method
Immunogen affinity purified.
Application Dilution
-
WB
-
1:500-1:2000
-
IHC-P
-
1:50-1:200
-
IF-Cell
-
1:50-1:200
-
FC
-
1:50-1:100
Target
Function
Cytokeratins comprise a diverse group of intermediate filament proteins (IFPs) that are expressed as pairs in both keratinized and non-keratinized epithelial tissue, where they constitute up to 85% of mature keratinocytes in the vertebrate epidermis. Cytokeratins play a critical role in differentiation and tissue specialization and function to maintain the overall structural integrity of epi-thelial cells. The a-helical coiled-coil dimers associate laterally end-to-end to form 10 nm diameter filaments. Cytokeratins are useful markers of tissue differentiation, and in addition, they aid in the characterization of malignant tumors. Cytokeratin 20 is abundantly expressed in goblet cells and enterocytes of the gastrointestinal tract, and Cytokeratin 20 is a useful marker of pancreatic and colorectal cancer. Cytokeratin 20 is also helpful in distinguishing different types of highly related carcinomas, such as renal oncocytomas from renal cell carcinomas.
Background References
1. Zhou Q.et.al.Keratin 20 serine 13 phosphorylation is a stress and intestinal goblet cell marker.J. Biol. Chem. 281:16453-16461(2006).
Sequence Similarity
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.
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.
Synonyms
CD20 antibody
CK 20 antibody
CK-20 antibody
CK20 antibody
Cytokeratin-20 antibody
Cytokeratin20 antibody
K1C20_HUMAN antibody
K20 antibody
KA20 antibody
Keratin 20 antibody
ExpandCD20 antibody
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
CollapseImages
-
Western blot analysis of Cytokeratin 20 on Human small intestine tissue lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-76, 1/1000) 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 lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-76, 1/1000) 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.
-
ICC staining of Cytokeratin 20 in SW480 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (ER1901-76, 1/100) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/100 dilution. The nuclear counter stain is DAPI (blue).
-
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 (ER1901-76, 1/100) 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 (ER1901-76, 1/100) 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 mouse 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 (ER1901-76, 1/100) 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 mouse 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 (ER1901-76, 1/100) 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 (ER1901-76, 1/100) (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 1/500 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"
Alternative Products
Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [SA35-03]
Application: WB,IF-Cell,IF-Tissue,IHC-P,FC,IP,mIHC
Reactivity: Human,Rat
Conjugate: unconjugated
Cytokeratin 20 Recombinant Mouse Monoclonal Antibody [A3H7-R]
Application: IHC-P,IF-Tissue
Reactivity: Human
Conjugate: unconjugated
Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [JE20-39]
Application: WB,IHC-P
Reactivity: Human,Mouse
Conjugate: unconjugated
Products with the same target and pathway
Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [SA35-03]
Application: WB,IF-Cell,IF-Tissue,IHC-P,FC,IP,mIHC
Reactivity: Human,Rat
Conjugate: unconjugated
Cytokeratin 20 Recombinant Mouse Monoclonal Antibody [A3H7-R]
Application: IHC-P,IF-Tissue
Reactivity: Human
Conjugate: unconjugated
Cytokeratin 20 Mouse Monoclonal Antibody [A3D12]
Application: WB,FC,IHC-P
Reactivity: Human
Conjugate: unconjugated
Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [SA35-03] - BSA and Azide free
Application: WB,IF-Cell,IF-Tissue,IHC-P,FC,IP
Reactivity: Human,Rat
Conjugate: unconjugated
Cytokeratin 20 Mouse Monoclonal Antibody [A3H7]
Application: IHC-P,IF-Tissue
Reactivity: Human
Conjugate: unconjugated
Cytokeratin 20 Rabbit Polyclonal Antibody
Application: WB,IHC-P,FC
Reactivity: Human,Mouse
Conjugate: unconjugated
Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [JE20-39]
Application: WB,IHC-P
Reactivity: Human,Mouse
Conjugate: unconjugated
iFluor™ 488 Conjugated Cytokeratin 20 Recombinant Rabbit Monoclonal Antibody [SA35-03]
Application: IF-Cell,IF-Tissue
Reactivity: Human
Conjugate: iFluor™ 488