Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free
- BOND RX™ Validated
- RabMAb
- Advanced Validation
- Recombinant
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(1 Publication)
Rabbit Recombinant Monoclonal Cytokeratin 18 antibody. Carrier free. Suitable for mIHC, IHC-P, Flow Cyt (Intra), WB, ICC/IF and reacts with Human samples. Cited in 1 publication.
View Alternative Names
CYK18, PIG46, KRT18, Cell proliferation-inducing gene 46 protein, Cytokeratin-18, Keratin-18, CK-18, K18
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
ab93741 at 1/200 dilution staining Cytokeratin 18 in formalin-fixed, paraffin-embedded human breast carcinoma tissue.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab93741).
- Flow Cyt (Intra)
Unknown
Flow Cytometry (Intracellular) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Flow cytometric analysis of rabbit anti-Cytokeratin 18 (SP69) antibody ab93741(1/100) in HeLa (Human epithelial cell line from cervix adenocarcinoma) cells (green) compared to negative control of rabbit IgG (blue).
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab93741).
- Flow Cyt (Intra)
Unknown
Flow Cytometry (Intracellular) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Flow Cytometry analysis of HeLa (human cervix adenocarcinoma epithelial cell) cells labeling Cytokeratin 18 with purified ab93741 at 1 : 240 dilution (1.00 µg/ml) Red. Cells were fixed with 4% paraformaldehyde . A Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) secondary antibody was used at 1 : 2000 dilution. Isotype control - Rabbit monoclonal IgG (ab172730) / Black. Unlabeled control - Unlabelled cells / Blue.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab135384).
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human endometrium tissue sections labeling Cytokeratin 18 with ab93741 at 1/200 dilution (1.21 µg/ml). Heat mediated antigen retrieval was performed Heat mediated antigen retrieval with sodium citrate buffer (pH 6.0, epitope retrieval solution 1) for 10 mins. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab93741)
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Immunihistochemical staining of human stomach with ab93741.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab93741).
- ICC/IF
Unknown
Immunocytochemistry/ Immunofluorescence - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
ICC/IF image of ab93741 stained HCT116 cells.
The cells were 4% formaldehyde fixed (10 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 ab93741 at 1/500 dilution overnight at +4°C. The secondary antibody (green) was 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 1.43μM.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA and sodium azide (ab93741).
- ICC/IF
Unknown
Immunocytochemistry/ Immunofluorescence - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Immunocytochemistry/ Immunofluorescence analysis of HeLa (human cervix adenocarcinoma epithelial cell) cells labeling Cytokeratin 18 with purified ab93741 at 1 : 100(2.4 µg/ml). Cells were fixed in 4% paraformaldehyde and permeabilized with 0.1% Triton X-100. Cells were counterstained with ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) 1 : 200 (2.5 µg/ml). Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) was used as the secondary antibody at 1 : 1000 (2 µg/ml) dilution. DAPI nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab135384).
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human stomach tissue sections labeling Cytokeratin 18 with ab93741 at 1/200 dilution (1.21 µg/ml). Heat mediated antigen retrieval was performed Heat mediated antigen retrieval with sodium citrate buffer (pH 6.0, epitope retrieval solution 1) for 10 mins. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab93741)
- Flow Cyt (Intra)
Unknown
Flow Cytometry (Intracellular) - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
Overlay histogram showing MCF7 (Human breast adenocarcinoma cell line) cells stained with ab93741 (red line).
The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween 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 (ab93741 1/1000 dilution) for 30 min at 22°C. The secondary antibody used was Alexa Fluor® 488 goat anti-rabbit IgG (H&L) (ab150077) at 1/2000 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit IgG (monoclonal) (0.1μg/1x106 cells) used under the same conditions. Unlabeled sample (blue line) was also used as a control.
Acquisition of >5000 events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter.
This antibody gave a positive signal in MCF7 cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
This data was developed using the same antibody clone in a different buffer formulation containing PBS BSA and sodium azide (ab93741).
- mIHC
Lab
Multiplex immunohistochemistry - Anti-Cytokeratin 18 antibody [SP69] - BSA and Azide free (AB198380)
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab135384). Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human breast labelling Cytokeratin 18 with ab93741 at 1/200 dilution (1.02 µg/mL) (B), Collagen VI with ab271938 at 1/500 dilution (2.084 μg/ml) (C) and Cytokeratin 14 with ab236439 at 1/2000 dilution ( 0.519 μg/ml) (D). Opal Polymer HRP Ms + Rb was used as a secondary antibody, and DAPI was used for a nuclear counter stain. Heat mediated antigen retrieval with Citrate buffer (pH 6.0, epitope retrieval solution 1) for 20 mins. Panel A : merged staining of anti-Cytokeratin 14 (magenta; Opal™690), anti-Cytokeratin 18 (green; Opal™520) and anti-Collagen VI (red; Opal™570) on human breast. Panel B : anti-Cytokeratin 18 stained on luminal epithelial cells. Panel C : anti-Collagen VI stained on stroma. Panel D : anti-Cytokeratin 14 stained on myoepithelial cells. The section was incubated in three rounds of staining : in the order of ab236439 for 30 mins, ab93741 for 10 mins, and ab271938 for 30 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system. The immunostaining was performed on a Leica Biosystems BOND® RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope.
Related conjugates and formulations (2)
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Anti-Cytokeratin 18 antibody [SP69]
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Biotin Anti-Cytokeratin 18 antibody [SP69]
Reactivity data
Product details
sb198380 is the carrier-free version of ab93741.
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free batch production
For more information, read more on recombinant antibodies.
Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.
Properties and storage information
Form
Purification technique
Purification notes
Storage buffer
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
CK18 maintains cellular integrity and mediates resistance to mechanical and non-mechanical stresses in epithelial cells. It forms heterodimers with KRT8 participating in a complex network of filaments important for maintaining cell shape and stability. This organization plays a role in managing cell survival during stress and apoptosis helping regulate cellular functions and responses in tissues where it is expressed.
Pathways
Cytokeratin 18 is involved in the apoptosis and cellular stress response pathways. It interacts with proteins such as caspases during apoptosis facilitating cytoskeletal reorganization and cell fragmentation. CK18 in coordination with KRT8 also participates in signaling pathways that regulate cell cycle and apoptotic processes underlining its importance in cellular turnover and tissue homeostasis.
Product protocols
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Target data
Publications (1)
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Communications biology 7:1062 PubMed39215205
2024
Applications
Unspecified application
Species
Unspecified reactive species
Product promise
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