Disease related

anti-Keratin K18 mouse monoclonal, Ks18.27, lyophilized, purified

Cat. No: 61034

Available, delivery time 1-7 days

$251.00*

Key Features
  • Mouse monoclonal
  • Suitable for ELISA, IHC and WB
  • Reacts with bovine and human
  • Isotype: IgG1
Product description
Quantity 50 µg
Antibody Type Monoclonal
Host Mouse
Isotype IgG1
Conjugate Unconjugated
Application ELISA, IHC, WB
Purification Affinity chromatography
Reactivity Bovine, Human
No reactivity Mouse
Storage before reconstitution 2-8°C until indicated expiry date
Storage after reconstitution Up to 3 months at 2-8°C; long term storage in aliquots at -20°C; avoid freeze/thaw cycles
Intended use Research use only
Clone Ks18.27
Immunogen Cytoskeletal preparation from tumor cell line MCF-7
Concentration 50 µg/ml after reconstitution with 1 ml dist. water
Formulation Lyophilized; reconstitute in 1 ml dist. water (final solution contains 0.09% sodium azide, 0.5% BSA in PBS buffer, pH 7.4)
UniprotID A1XEA5 (Bovine),P05783 (Human)
Synonym Keratin, type I cytoskeletal 18, Cell proliferation-inducing gene 46 protein, Cytokeratin-18, CK-18, Keratin-18, K18, KRT18, CYK18, PIG46
Applications
Tested applications Tested dilutions
Immunohistochemistry (IHC) - frozen 1:10-1:50
Immunohistochemistry (IHC) - paraffin 1:10-1:50 (protease treatment and/or microwave treatment recommended)
ELISA Assay dependent
Western Blot (WB) Assay dependent
Background

Ks 18.27 represents an excellent marker to discriminate simple epithelia from those of different origin.
Polypeptide reacting: Mr 45,000 polypeptide (keratin K18; formerly also designated cytokeratin 18) of all simple type and complex epithelia.
Reactivity on cultured cell lines: MCF-7, HeLa. A-431, PLC, RT 112
Tumors specifically detected: All adeno-CA tested; undifferentiated CA; cervix CA; hepatocellular CA

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FAQs
The concentration of unpurified supernatant, ascites, unpurified guinea pig serum and unpurified rabbit serum is not determined.
The concentration of purified antibodies is mentioned on the datasheet.
For prediluted antibodies the concentration may vary from lot to lot. The concentration of these antibodies is not mentioned on the datasheet and can be requested at support@progen.com.

Most of our purified mouse antibodies contain 0.5% BSA as stabilizer. If BSA was added to the antibody solution, it is stated in the datasheet.
The supernatant format contains FCS proteins from cell culture medium supplemented with FCS.
The serum antibodies contain other proteins present in serum.

Please find the solvent for reconstitution and the amount of liquid for reconstitution on the antibody datasheet. The buffer formulation after reconstitution is also mentioned in the datasheet.
PROGEN offers different formats for mouse monoclonal antibodies.  Different antibodies may not be offered in each format, the following are all possible formats:
  1. Supernatant and supernatant concentrate: This format contains hybridoma cell culture supernatant. The antibody is not purified and the antibody concentration is not determined. The antibody concentration may vary from lot to lot. Therefore we recommend to titrate the optimal concentration for the application used for each new lot.
  2. Lyophilized, purified: This format contains purified antibody in lyophilized form. The reconstitution of this antibody is described in the datasheet. The buffer composition after reconstitution is also mentioned on the datasheet. 
  3. Liquid, purified: This format contains purified antibody in liquid format. The concentration is mentioned on the datasheet. 
  4. Prediluted, purified: This format contains purified antibody in liquid format. Most antibodies in this format are diluted to be ready-to-use for IHC with standard tissue. But some antibodies of this format need further dilution for IHC. This is mentioned on the datasheet.

Lyophilized antibodies can be stored at 2-8°C until expiration.
Most of our liquid antibodies and reconstituted lyophilized antibodies may be stored for short term storage (up to 3 month) at 2-8°C. For long term storage we recommend to store the antibody at -20°C in aliquots. Please avoid freeze and thaw cycles.
Most of our conjugated antibodies should be stored at 2-8°C.
The individual storage conditions are mentioned on the datasheet.

The expiration date of our antibodies is indicated on the product label.
We offer bulk amounts starting from 1 mg for many of our mouse monoclonal or recombinant antibodies. Please contact us for further information or use the “bulk button” on the product page.
Isolation of positive area from tissue slices under the microscope, followed by extraction procedure to enrich for the cytoskeleton.
Positive tissue: outer root sheath of hair follicle, sweat gland epithelium on the foot pads, filiform papillae of tongue.
  • Homogenization (e.g. with polytron) of tissue samples in buffer L (140 mM NaCl, 5 mM EDTA, 5 mM EGTA, 10 mM Tris-HCl pH7.6) supplemented with protease inhibitors; use 1 ml buffer for approx. 0.1 g tissue.
  • To reduce viscosity by high DNA contents, benzonase treatment can be included (30 min at 37°C).
  • Centrifugation for 10 min (max. speed, table top centrifuge).
  • Resuspend pellet in "Triton extraction buffer" (buffer L plus 1% Triton X-100) using e.g. a dounce homogenizer.
  • Centrifugation for 10 min (max. speed, table top centrifuge).
  • Resuspend pellet in "high salt extraction buffer" (buffer L plus 1.5 M KCl) using e.g. a dounce homogenizer.
  • Centrifugation for 10 min (max. speed, table top centrifuge).
  • Resuspend pellet in "Triton extraction buffer" (buffer L plus 1% Triton X-100) using e.g. a dounce homogenizer.
  • Centrifugation for 10 min (max. speed, table top centrifuge).
  • Resuspend pellet in Laemmli buffer and boil (5 min) for SDS-PAGE.

Most of our antibodies contain 0.09% sodium azide as preservative. If a preservative is added, it is mentioned in the datasheet.
The optimal antibody dilution for your specific protocol and application needs to be titrated in your lab with your equipment and sample. The optimal dilution may vary between protocols and samples. A good dilution for starting the titration is the dilution mentioned in the datasheet. If the sample needs a specific treatment (eg. Antigen retrieval for IHC on FFPE sections) this should also be mentioned on the antibody datasheet. 
PROGEN antibodies are shipped at ambient temperature. The antibodies are stable at ambient temperature for the shipment period. Please store the antibodies as indicated in the datasheet upon arrival.

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