Anti-Cytokeratin 14 antibody [EP1612Y]

• IHC-P

AbReview27628****

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

ab51054 staining Cytokeratin 14 in human skin tissue by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections).

Tissue was fixed in paraformaldehyde and a heat mediated antigen retrieval step was performed using citrate buffer, pH 6.0. Samples were then permeabilized using 0.1% saponin/PBS, blocked with 4% BSA for 30 minutes at 25°C and then incubated with ab51054 at a 1/200 dilution for 16 hours at 4°C. The secondary used was a Texas Red conjugated goat anti-rabbit polyclonal used at a 1/100 dilution.

Image courtesy of an anonymous Abreview.

• Flow Cyt (Intra)

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Flow Cytometry (Intracellular) - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

Overlay histogram showing A431 (Human epidermoid carcinoma cell line) cells stained with ab51054 (red line).

The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Triton for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab51054, 1/100 dilution) for 30 min at 22°C. The secondary antibody used was DyLight^® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was was rabbit IgG (monoclonal) (1μg/1x10⁶ cells) used under the same conditions. Acquisition of >5,000 events was performed.

This antibody gave a positive signal in A431 cells fixed with 4% paraformaldehyde/permeabilized in 0.1% PBS-Triton used under the same conditions.

• ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

ab51054 staining KRT14 in wild-type A431 cells (top panel) and KRT14 knockout A431 cells (bottom panel). The cells were fixed with 100% methanol (5 min) then permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated with ab51054 at 1/100 dilution and ab7291 (Mouse monoclonal to alpha Tubulin) at 1/1000 dilution overnight at 4°C followed by a further incubation at room temperature for 1h with a goat secondary antibody to rabbit IgG (Alexa Fluor^® 488) (ab150081) at 2 μg/ml (shown in green) and a goat secondary antibody to mouse IgG (Alexa Fluor^® 594) (ab150120) at 2 μg/ml (shown in red). Nuclear DNA was labelled in blue with DAPI.
Image was taken with a confocal microscope (Leica-Microsystems TCS SP8).

• IHC-P

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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

Immunohistochemical analysis of paraffin-embedded human squamous lung carcinoma tissue sections labeling Cytokeratin 14 with purified ab51054 at 1/100 dilution. ImmunoHistoProbe one step HRP Polymer (ready to use) was used as the secondary antibody. Sections were counterstained with Hematoxylin.
Antigen retrieval was heat mediated antigen retrieval using citrate buffer, pH 6.0).

• ICC/IF

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Immunocytochemistry/ Immunofluorescence - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

ICC/IF image of ab51504 stained A431 (Human epidermoid carcinoma cell line) cells.

The cells were fixed in 100% methanol (5 min) and then incubated in 1% BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilize the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab51504, 1/100 dilution) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight^® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor^® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43 μM.

• IP

Lab

Immunoprecipitation - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

Purified ab51054 at 1/20 dilution (0.5μg) immunoprecipitating Cytokeratin 14 in A431 whole cell lysate.
Lane 1 (input) : A431 (Human epidermoid carcinoma epithelial cell) whole cell lysate 10μg
Lane 2 (+) : ab51054 + A431 whole cell lysate.
Lane 3 (-) : Rabbit monoclonal IgG (ab172730) instead of ab51054 in A431 whole cell lysate.
VeriBlot for IP Detection Reagent (HRP) (ab131366) (1/1000 dilution) was used for Western blotting.
Blocking Buffer and concentration : 5% NFDM/TBST.
Diluting buffer and concentration : 5% NFDM/TBST.
Observed band size : 48 kDa

All lanes:

Immunoprecipitation - Anti-Cytokeratin 14 antibody [EP1612Y] (ab51054)

Predicted band size: 52 kDa

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• WB

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Western blot - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

All lanes:

Western blot - Anti-Cytokeratin 14 antibody [EP1612Y] (ab51054) at 1/20000 dilution

All lanes:

A431 (Human epidermoid carcinoma cell line) cell lysate at 10 µg

Secondary

All lanes:

Goat anti-Rabbit-HRP at 1/2000 dilution

Predicted band size: 52 kDa

Observed band size: 48 kDa

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• WB

Lab

Western blot - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

Lanes 1 - 4 : Merged signal (red and green). Green - ab51054 observed at 49 kDa. Red - loading control, ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37kDa.

ab51054 was shown to react with Cytokeratin 14 in wild-type A431 cells in western blot. Loss of signal was observed when KRT14 knockout sample was used. Wild-type A431 and KRT14 knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3% milk in TBS-T (0.1% Tween^®) before incubation with ab51054 and ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4°C at a 1 in 10000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye^® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye^® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-Cytokeratin 14 antibody [EP1612Y] (ab51054) at 1/10000 dilution

Lane 1:

Wild-type A431 cell lysate at 20 µg

Lane 2:

KRT14 knockout A431 cell lysate at 20 µg

Lane 2:

Western blot - Human KRT14 (Cytokeratin 14) knockout A-431 cell line (<a href='/en-us/products/cell-lines/human-krt14-cytokeratin-14-knockout-a-431-cell-line-ab261897'>ab261897</a>)

Lane 3:

Human skin cell lysate at 20 µg

Lane 4:

MCF7 (Human breast adenocarcinoma cell line) whole cell lysate at 20 µg

Predicted band size: 52 kDa

Observed band size: 49 kDa

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• WB

CiteAb

Western blot - Anti-Cytokeratin 14 antibody [EP1612Y] (AB51054)

Cytokeratin 14 western blot using anti-Cytokeratin 14 antibody [EP1612Y] ab51054. Publication image and figure legend from Carter, E. P., Gopsill, J. A., et al., 2017, Breast Cancer Res, PubMed 28427436.

ab51054 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab51054 please see the product overview.

Isolated myoepithelial and luminal cells maintain their characteristics in vitro. a Schematic of proposed ductal model. b Representative fluorescence-activated cell sorting plots of reduction mammoplasty specimens separated by expression of CD10 (allophycocyanin fluorescence, blue gate) and epithelial cell adhesion molecule (EpCAM; phycoerythrin fluorescence, green gate). c Representative light micrographs of isolated myoepithelial and luminal cells grown in vitro for 10 days. Images taken at × 4 original magnification. Scale bar = 100 μm. d and e Western blot (d) and confocal (e) analysis of calponin, p63, cytokeratin (CK) 14, CK8 and CK19 expression in myoepithelial and luminal cells grown for 10 days in culture. Cell nuclei are labelled with 4′,6-diamidino-2-phenylindole (blue). Images and plots are representative of cells derived from at least three donors. Scale bar = 20 μm

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