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Cytokeratin 8 Monoclonal Mouse Antibody (K8/383)

Cytokeratin 8 (CK8) belongs to the type II (or B or basic) subfamily of high molecular weight cytokeratins and exists in combination with cytokeratin 18 (CK18).

Product Attributes

Antibody number

0383

Reactivity (target)

Cytokeratin 8

Antibody type

Primary

Host species

Mouse

Clonality

Monoclonal

Clone

K8/383

Isotype

IgG1

Molecular weight

52.5 kDa

Synonyms

CARD2; CK8; CYK8; CYKER; Cytokeratin Endo A; DreK8; EndoA; K2C8; K8; Keratin 8; KRT8; Type-II Keratin Kb8

Human gene symbol

KRT8

Entrez gene ID

3856

SwissProt

P05787

Unigene

533782 & 708445

Immunogen

Recombinant human full-length cytokeratin 8 protein

Cellular localization

Cytoskeleton

Species reactivity

Human

Applications

Immunofluorescence, Immunohistology (formalin), Flow cytometry

Application notes

Immunohistology formalin-fixed 1-2 ug/mL, Staining of formalin-fixed tissues requires boiling tissue sections in 10 mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes, Flow Cytometry 0.5-1 ug/million cells/0.1 mL, Immunofluorescence 1-2 ug/mL, Optimal dilution for a specific application should be determined by user

Positive control

MCF-7 or A431 cells. Skin, Colon, lung or breast carcinoma

Shipping condition

Room temperature

Storage Conditions

Store at 2 to 8 °C, Protect fluorescent conjugates from light, Note: store BSA-free antibodies at -10 to -35 °C

Shelf life

Guaranteed for at least 24 months from date of receipt when stored as recommended

Regulatory status

For research use only (RUO)

Research areas

Cancer, Cytoskeleton

Cell/tissue expression

Epithelial cells

Tumor expression

Breast cancer, Hepatocellular carcinoma, Sarcoma

Conjugation
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Product Description

Cytokeratin 8 (CK8) belongs to the type II (or B or basic) subfamily of high molecular weight cytokeratins and exists in combination with cytokeratin 18 (CK18). CK8 is primarily found in the non-squamous epithelia and is present in majority of adenocarcinomas and ductal carcinomas. It is absent in squamous cell carcinomas. Hepatocellular carcinomas are defined by the use of antibodies that recognize only cytokeratin 8 and 18. CK8 exists on several types of normal and neoplastic epithelia, including many ductal and glandular epithelia such as colon, stomach, small intestine, trachea, and esophagus as well as in transitional epithelium. Anti-CK8 does not react with skeletal muscle or nerve cells. Epithelioid sarcoma, chordoma, and adamantinoma show strong positivity corresponding to that of simple epithelia (with antibodies against CK8, CK18 and CK19). Reportedly, anti-CK8 is useful for the differentiation of lobular (ring-like, perinuclear) from ductal (peripheral-predominant) carcinoma of the breast.

Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

Stock status: Because Biotium offers a large number of antibody and conjugation options, primary antibody conjugates may be made to order. Typical lead times are up to one week for CF® dye and biotin conjugates, and up to 2-3 weeks for fluorescent protein and enzyme conjugates. Please email order@biotium.com to inquire about stock status and lead times before placing your order.

 Catalog number key for antibody number 0383, Anti-Cytokeratin 8 (K8/383) The prefix indicates conjugation, followed by the antibody number and size suffix.

Antibody # prefixConjugationEx/EmConcentrationStorage Buffer
BNC04CF®405S404/431 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC05CF®405M408/452 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC88CF®488A490/515 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC43CF®543541/560 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC55CF®555555/565 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC68CF®568562/583 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC94CF®594593/614 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC40CF®640R642/662 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC47CF®647650/665 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC61CF®660R663/682 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC80CF®680681/698 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC81CF®680R680/701 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNC70CF®770770/797 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCRR-PE (PE)496, 546, 565/578 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCAAPC650/660 nnm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCPPerCP482/677 nm0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCBBiotinN/A0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCAPAlkaline PhosphataseN/A0.1 mg/mL PBS, 0.1% BSA, 0.05% azide
BNCHHorseradish PeroxidaseN/A0.1 mg/mL PBS, 0.05% BSA, no azide
BNUBPurified, with BSA N/A0.2 mg/mL PBS, 0.05% BSA, 0.05% azide
BNUMPurified, BSA-freeN/A1 mg/mL PBS, no BSA, no azide

References

Guelstein VI et. al. Int J Cancer 42:147-53 (1988)

 

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