Highly published

anti-Keratin K8/K18 guinea pig polyclonal, serum



Cat. No: GP11

Available, delivery time 1-7 days


Key Features
  • Stabilized antiserum
  • Guinea pig polyclonal
  • Suitable for ELISA, IHC and WB
  • Reacts with bovine, chicken, human, mouse, rat and hamster
Product description
Quantity 100 µl
Antibody Type Polyclonal
Host Guinea pig
Conjugate Unconjugated
Application ELISA, IHC, WB
Purification Stabilized antiserum
Reactivity Bovine, Chicken, Hamster, Human, Mouse, Rat
Storage Short term at 2-8°C; long term storage in aliquots at -20°C; avoid freeze/thaw cycles
Intended use Research use only
Immunogen Keratin K8/K18 filaments, reconstituted from purified bovine keratins K8 and K18
Formulation Contains 0.09% sodium azide
UniprotID P05786 (Bovine),A0A1L1RIW5 (Chicken),P05787 (Human),P11679 (Mouse),Q10758 (Rat)
Synonym Keratin, type II cytoskeletal 8, Cytokeratin-8, CK-8, Keratin-8, K8, Type-II keratin Kb8, KRT8, CYK8
Note Centrifuge prior to opening
Tested applications Tested dilutions
Immunohistochemistry (IHC) - frozen 1:100
Immunohistochemistry (IHC) - paraffin 1:50-1:100 (microwave treatment recommended)
ELISA Assay dependent
Western Blot (WB) 1:1,500-1:2,500

Reactive polypeptide (specificity): Mr 52,500 and 45,500; Keratins K8 and K18 (formerly also designated cytokeratins 8 and 18) of simple type epithelium.
Tumors specifically detected: all adenocarcinoma tested, undifferentiated carcinoma, hepatocellular carcinoma, cervix carcinoma.

References/Publications (30)
Category Protocol
Size 917.17 KB
Filetype pdf
Category Protocol
Size 919.99 KB
Filetype pdf
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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.

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.

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.
Positive western blot control: anti-Keratin K8/K18 antibody
Cat. No: 64004
  • Whole cell lysate from MCF7 human breast adenocarcinoma cell line
  • Validated and tested western blot control for: anti-Keratin K8/K18 guinea pig polyclonal antibody, Cat. No. GP11

anti-guinea pig IgG goat polyclonal, HRP conjugate
Cat. No: 90001
  • Goat polyclonal
  • Suitable for ELISA and WB
  • Reacts with guinea pig

Keratin K8, bovine, 250 µg
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Quantity: 250 µg
  • Bovine keratin K8 (formerly also designated cytokeratin 8)
  • Protein standard

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Keratin K18, bovine, 250 µg
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Quantity: 250 µg
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Keratin K8, human recombinant, 250 µg
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Quantity: 250 µg
  • Recombinant human keratin K8 (formerly also designated cytokeratin 8)
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Variants from $290.00*
Keratin K18, human recombinant, 250 µg
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Quantity: 250 µg
  • Recombinant human keratin K18 (formerly also designated cytokeratin 18)
  • Protein standard

Variants from $293.00*
anti-Keratin K8/K18 mouse monoclonal, NCL-5D3, supernatant
Cat. No: 10502
  • Mouse monoclonal
  • Suitable for ICC/IF, IHC on frozen and paraffin sections and WB
  • Reacts with human
  • Isotype: IgG1