Home > Product > Antibody > Rabbit Anti-Cytokeratin 19 antibody
40 kDa keratin intermediate filament; CK 19; ck19; CK19; CK-19; KRT19; Cytokeratin19; Cytokeratin-19; k19; k1cs; Keratin 19; Keratin-19; Keratin type I 40 kD; Keratin type i 40kD; Keratin type I cytoskeletal 19; krt19; mgc15366; K1C19_HUMAN; Keratin, type
Cat:
SL2190R
Species Reactivity:
Human,Mouse,(predicted: Rat,Chicken,Dog,Pig,Cow,Horse,Rabbit,)
Immunogen:
KLH conjugated synthetic peptide derived from human Cytokeratin 19.:101-200/403
Format:
Liquid
Storage instructions:
Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.
Concentration:
1mg/ml
Clonality:
Polyclonal
Isotype:
IgG
Applications:
WB=1:500-2000ELISA=1:5000-10000IHC-P=1:100-500IHC-F=1:100-500Flow-Cyt=1μg /testIF=1:100-500(Paraffin sections need to do antigen repair)not yet tested in other applications.optimal dilutions/concentrations should be determined by the end user.
Host:
Rabbit
Product Overview:
Sample: Lane 1: A549 (Human) Cell Lysate at 30 ugLane 2: MCF-7 (Human) Cell Lysate at 30 ugLane 3: HepG2 (Human) Cell Lysate at 30 ugPrimary: Anti-Cytokeratin 19 (SL2190R) at 1/1000 dilutionSecondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilutionPredicted band size: 42 kDObserved band size: 42 kDSample: testis (Mouse) Lysate at 40 ugPrimary: Anti-Cytokeratin 19 (SL2190R) at 1/300 dilutionSecondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilutionPredicted band size: 44 kDObserved band size: 47 kDSample: A549 Cell (Human) Lysate at 30 ugPrimary: Anti-Cytokeratin 19 (SL2190R) at 1/300 dilutionSecondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilutionPredicted band size: 44 kDObserved band size: 47 kDSample: Stomach(Mouse) lysate at 30ug;Primary: Anti-Cytokeratin 19 (SL2190R) at 1:300 dilution; Secondary: HRP conjugated Goat-Anti-rabbit IgG(SL0295G-HRP) at 1: 5000 dilution; Predicted band size: 44 kDObserved band size: 44 kD Paraformaldehyde-fixed, paraffin embedded (Human stomach carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.Paraformaldehyde-fixed, paraffin embedded (Human cervical carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.Paraformaldehyde-fixed, paraffin embedded (Human liver carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.Tissue/cell:MCF7 cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, SLC0005) at 37°C for 20 min; Antibody incubation with (Cytokeratin 19) polyclonal Antibody, Unconjugated (SL2190R) 1:100, 90 minutes at 37°C; followed by a FITC conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.Tissue/cell:MCF7 cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, SLC0005) at 37°C for 20 min; Antibody incubation with (Cytokeratin 19) polyclonal Antibody, Unconjugated (SL2190R) 1:100, 90 minutes at 37°C; followed by a FITC conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.Blank control:MCF-7. Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R) Dilution: 1ug/Test; Secondary Antibody : Goat anti-rabbit IgG-FITCDilution: 0.5ug/Test. ProtocolThe cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with 90% ice-cold methanol for 20 min at -20℃.The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.Blank control:A549. Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R) Dilution: 2μg /10^6 cells; Isotype Control Antibody (orange line): Rabbit IgG . Secondary Antibody : Goat anti-rabbit IgG-AF647Dilution: 1μg /test. ProtocolThe cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with 0.1% PBST for 20 min at room temperature. The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.Blank control (blue line): Hela (fixed with 70% methanol (Overnight at 4℃) and then permeabilized with 90% ice-cold methanol for 20 min at -20℃). Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R),Dilution: 1μg /10^6 cells; Isotype Control Antibody (orange line): Rabbit IgG . Secondary Antibody (white blue line): Goat anti-rabbit IgG-PE,Dilution: 1μg /test. Blank control(blue): MCF7(fixed with 2% paraformaldehyde (10 min) and then permeabilized with ice-cold 90% methanol for 30 min on ice). Primary Antibody: Rabbit Anti-Cytokeratin 19/FITC Conjugated antibody (SL2190R /FITC), Dilution: 1μg in 100 μL 1X PBS containing 0.5% BSA; Isotype Control Antibody: Rabbit IgG/FITC(orange) ,used under the same conditions.
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Product PDFs
Datasheet:


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.

Function:
Involved in the organization of myofibers. Together with KRT8, helps to link the contractile apparatus to dystrophin at the costameres of striated muscle.

Subunit:
Heterotetramer of two type I and two type II keratins. Interacts with PNN and the actin-binding domain of DMD. Interacts with HCV core protein.

Tissue Specificity:
Expressed in a defined zone of basal keratinocytes in the deep outer root sheath of hair follicles. Also observed in sweat gland and mammary gland ductal and secretory cells, bile ducts, gastrointestinal tract, bladder urothelium, oral epithelia, esophagus, ectocervical epithelium (at protein level). Expressed in epidermal basal cells, in nipple epidermis and a defined region of the hair follicle. Also seen in a subset of vascular wall cells in both the veins and artery of human umbilical cord, and in umbilical cord vascular smooth muscle. Observed in muscle fibers accumulating in the costameres of myoplasm at the sarcolemma in structures that contain dystrophin and spectrin.

Similarity:
Belongs to the intermediate filament family.

SWISS:
P08727

Gene ID:
3176

Database links:

Entrez Gene: 3176 Human

Entrez Gene: 16669 Mouse

Omim: 29620 Human

SwissProt: P08727 Human

SwissProt: P19001 Mouse

Unigene: 654568 Human

Unigene: 439699 Mouse



结构蛋白(Structural Proteins)
CK-19细胞角蛋白-19(又称CYFRa21-1)主要用于肿瘤方面的研究,近年来大多用于消化系统恶性肿瘤的鉴别,有学者认为:CK-19在胰腺干细胞分化过程中有细胞角蛋白19的表达,把细胞角蛋白19作为胰腺干细胞的标志物。阳性部位:主要在胞浆。 Picture

Sample:
Lane 1: A549 (Human) Cell Lysate at 30 ug
Lane 2: MCF-7 (Human) Cell Lysate at 30 ug
Lane 3: HepG2 (Human) Cell Lysate at 30 ug
Primary: Anti-Cytokeratin 19 (SL2190R) at 1/1000 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 42 kD
Observed band size: 42 kD
Sample:
testis (Mouse) Lysate at 40 ug
Primary: Anti-Cytokeratin 19 (SL2190R) at 1/300 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 44 kD
Observed band size: 47 kD
Sample:
A549 Cell (Human) Lysate at 30 ug
Primary: Anti-Cytokeratin 19 (SL2190R) at 1/300 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 44 kD
Observed band size: 47 kD
Sample: Stomach(Mouse) lysate at 30ug;
Primary: Anti-Cytokeratin 19 (SL2190R) at 1:300 dilution;
Secondary: HRP conjugated Goat-Anti-rabbit IgG(SL0295G-HRP) at 1: 5000 dilution;
Predicted band size: 44 kD
Observed band size: 44 kD
Paraformaldehyde-fixed, paraffin embedded (Human stomach carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.
Paraformaldehyde-fixed, paraffin embedded (Human cervical carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.
Paraformaldehyde-fixed, paraffin embedded (Human liver carcinoma); Antigen retrieval by microwave in sodium citrate buffer (pH6.0) ; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer (3% BSA) at RT for 30min; Antibody incubation with (Cytokeratin 19) Polyclonal Antibody, Unconjugated (SL2190R) at 1:400 overnight at 4℃, followed by conjugation to the secondary antibody (labeled with HRP)and DAB staining.
Tissue/cell:MCF7 cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, SLC0005) at 37°C for 20 min; Antibody incubation with (Cytokeratin 19) polyclonal Antibody, Unconjugated (SL2190R) 1:100, 90 minutes at 37°C; followed by a FITC conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.
Tissue/cell:MCF7 cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, SLC0005) at 37°C for 20 min; Antibody incubation with (Cytokeratin 19) polyclonal Antibody, Unconjugated (SL2190R) 1:100, 90 minutes at 37°C; followed by a FITC conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.
Blank control:MCF-7.
Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R)
Dilution: 1ug/Test;
Secondary Antibody : Goat anti-rabbit IgG-FITC
Dilution: 0.5ug/Test.
Protocol
The cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with 90% ice-cold methanol for 20 min at -20℃.The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.
Blank control:A549.
Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R)
Dilution: 2μg /10^6 cells;
Isotype Control Antibody (orange line): Rabbit IgG .
Secondary Antibody : Goat anti-rabbit IgG-AF647
Dilution: 1μg /test.
Protocol
The cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with 0.1% PBST for 20 min at room temperature. The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.
Blank control (blue line): Hela (fixed with 70% methanol (Overnight at 4℃) and then permeabilized with 90% ice-cold methanol for 20 min at -20℃).
Primary Antibody (green line): Rabbit Anti-Cytokeratin 19 antibody (SL2190R),Dilution: 1μg /10^6 cells;
Isotype Control Antibody (orange line): Rabbit IgG .
Secondary Antibody (white blue line): Goat anti-rabbit IgG-PE,Dilution: 1μg /test.
Blank control(blue): MCF7(fixed with 2% paraformaldehyde (10 min) and then permeabilized with ice-cold 90% methanol for 30 min on ice).
Primary Antibody: Rabbit Anti-Cytokeratin 19/FITC Conjugated antibody (SL2190R /FITC), Dilution: 1μg in 100 μL 1X PBS containing 0.5% BSA;
Isotype Control Antibody: Rabbit IgG/FITC(orange) ,used under the same conditions.
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