Anti-Cytokeratin 14 antibody [LL002] (ab7800)

IHC image of Cytokeratin 14 staining in a section of formalin-fixed paraffin-embedded normal human skin* performed on a Leica BOND^TM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20mins. The section was then incubated with ab7800, 1ug/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. The inset secondary-only control image is taken from an identical assay without primary antibody.

For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

This blot was produced using a 4-12% Bis-tris gel under the MOPS buffer system. The gel was run at 200V for 55 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 3% milk before ab7800 and ab181602 (Rabbit anti GAPDH), were incubated overnight at 4°C at a 1ug/ml concentration and 1/20000 dilution respectively. Antibody binding was detected using Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.

ab7800 staining Cytokeratin 14 in A431 cells. The cells were fixed with 100% methanol (5 min), 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 overnight at +4°C with ab7800 at 0.1ugml then detected with an Alexa Fluor^® 488 goat anti-mouse secondary antibody (ab150117) at a 1/1000 dilution (shown in green). Nuclear DNA was labelled with DAPI (shown in blue), and ab202272, Rabbit monoclonal to alpha Tubulin (Alexa Fluor^® 594), at a 1/250 dilution (shown in red).

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ab7800 was used to stain mouse prostate.

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Immunohistochemical analysis of mouse mammary duct tissue, staining Cytokeratin 14 (red) with ab7800.

Antigen retrieval was carried out on paraffin-embedded sections by boiling in citrate buffer (pH 6) for 18 minutes in a microwave. Sections were then blocked for 1.5 hours in blocking reagents, before incubating with primary antibody (0.26 µg/ml) overnight at 4°C. An AlexaFluor^®555-conjugated goat anti-mouse IgG was used as the secondary antibody