Cytokeratin, pan Antibody (AE-1/AE-3) [Biotin]

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Immunocytochemistry/ Immunofluorescence: pan Cytokeratin Antibody (AE1 + AE3) [Biotin] [NBP2-33200B] - MCF-7 cells stained with Biotin conjugated pan Cytokeratin antibody and SAv-A488. A) SAv-A488 only at a dilution of ...read more

Product Details

Summary
Reactivity Hu, Mu, Rt, Bv, Ca, Ch, Pm, Rb, Re, ZeSpecies Glossary
Applications WB, Flow, Flow-IC, ICC/IF, IHC, IHC-Fr, IHC-P
Clone
AE-1/AE-3
Clonality
Monoclonal
Host
Mouse
Conjugate
Biotin

Order Details

Cytokeratin, pan Antibody (AE-1/AE-3) [Biotin] Summary

Immunogen
Human epidermal keratin
Localization
Cytoplasmic
Marker
Epithelial marker
Specificity
Twenty human keratins are resolved with two-dimensional gel electrophoresis into acidic (pI 6.0) subfamilies. This antibody cocktail recognizes acidic (Type I or LMW) and basic (Type II or HMW) cytokeratins, which 67kDa (CK1); 64kDa (CK3); 59kDa (CK4); 58kDa (CK5); 56kDa (CK6); 52kDa (CK8); 56.5kDa (CK10); 50kDa (CK14); 50kDa (CK15); 48kDa (CK16); 40kDa (CK19). Many studies have shown the usefulness of keratins as markers in cancer research and tumor diagnosis. AE-1/AE-3 is a broad spectrum anti pan-cytokeratin antibody cocktail, which differentiates epithelial tumors from non-epithelial tumors e.g. squamous vs. adenocarcinoma of the lung, liver carcinoma, breast cancer, and esophageal cancer. It has been used to characterize the source of various neoplasms and to study the distribution of cytokeratin containing cells in epithelia during normal development and during the development of epithelial neoplasms. This antibody stains cytokeratins present in normal and abnormal human tissues and has shown high sensitivity in the recognition of epithelial cells and carcinomas.
Isotype
IgG1 Kappa/IgG1 Kappa
Clonality
Monoclonal
Host
Mouse
Gene
KRT1
Purity
Protein A or G purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Flow (Intracellular)
  • Flow Cytometry
  • Immunocytochemistry/Immunofluorescence 1:10-1:500
  • Immunohistochemistry
  • Immunohistochemistry-Frozen
  • Immunohistochemistry-Paraffin
  • Western Blot
Application Notes
Optimal dilution of this antibody should be experimentally determined.
Readout System
Reviewed Applications
Read 1 Review rated 4
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NBP2-33200B in the following applications:

Reactivity Notes

Reptile reactivity reported in scientific literature (PMID: 11351328). Zebrafish reactivity reported in scientific literature (PMID: 30970016).

Packaging, Storage & Formulations

Storage
Store at 4C in the dark.
Buffer
PBS
Preservative
0.05% Sodium Azide
Purity
Protein A or G purified

Notes

This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

Background

Cytokeratins are a family of intermediate filamentous proteins that are expressed by epithelial cells (1,2). Cytokeratins range in size with a theoretic molecular weight varying from approximately 40 kDa to 68 kDa (2,3). The cytokeratin family consists of 20 polypeptides that are further divided into two main groups based on isoelectric point and molecular weight (1-3). The type I group are smaller, acidic polypeptides designated as cytokeratin 9 through cytokeratin 20 (CK9 - CK20) (1-4). Conversely, CK1 - CK8 belong to the type II group, classified as larger, basic or neutral polypeptides (1-4). Structurally, cytokeratins have homologous basic structure with other intermediate filaments; they possess a 300-315 amino acid (aa) central helical region that consists of four conserved domains (1A, 2A, 1B, and 2B) which are separated by linker domains (L1, L12, and L2) (1,5). Additionally, flanking this central region, both the amino- and carboxyl-terminal ends have a homologous subdomain (H), a variable domain (V), and charged end subdomains (E) (1). Furthermore, the central rod of one cytokeratin monomer binds with another monomer to form a coiled-coil dimer which subsequently binds another dimer to form a tertramer (3). Finally, many tetramers join together to ultimately form an intermediate filament of approximately 10nm in diameter (1-3, 5). Cytokeratins are expressed as pairs, typically with a type I and type II member; for example, CK10 pairs with CK1 (1,3).

Epithelial cells express multiple subtypes of cytokeratins which can be used to classify epithelial cell type or differentiation status, as well tumor progression or diagnosis (2). Cytokeratins are important for both stability and integrity of epithelial cells and function in intracellular signaling, from wound healing to apoptosis (1). Cytokeratins are useful immunohistochemistry tumor markers and antibodies to cytokeratins are a common pathological tool (1,3,6). Cytokeratin pan antibody is an antibody cocktail mixture that can detect multiple cytokeratins and reacts to multiple epithelial tissues (1,3,6). For example, AE-1/AE-3 is a commonly used specific pan cytokeratin that detects cytokeratins 1-8, 10, 14-16 and 19 (1,3,6).

Given the role of cytokeratins in the structural integrity of epithelial cells, mutations in cytokeratins have been shown to play a role in a variety of human diseases including epidermolysis bullosa simplex (EBS) (4,5). EBS is an autosomal dominant disorder that is caused by missense mutations in either CK5 or CK14 (5). Other known cytokeratin-related disorders include bullous ichthyosis, a skin disorder characterized by redness, blistering, and hyperkeratosis, and epidermolytic palmoplantar keratoderma (EPPK), which results in hyperkeratosis on the palms and soles of the body (7).

References

1. Awasthi, P., Thahriani, A., Bhattacharya, A., Awasthi, P., & Keratins, B. A. (2016). Keratins or cytokeratins: a review article. Journal of Advanced Medical and Dental Sciences Research. https://10.21276/jamdsr.2016.4.4.30

2. Southgate, J., Harnden, P., & Trejdosiewicz, L. K. (1999). Cytokeratin expression patterns in normal and malignant urothelium: a review of the biological and diagnostic implications. Histology and histopathology. https://doi.org/10.14670/HH-14.657

3. Belaldavar, C., Mane, D. R., Hallikerimath, S., Kale, A. D. (2016). Cytokeratins: Its role and expression profile in oral health and disease. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. https://doi.org/10.1016/j.ajoms.2015.08.001.

4. Linder S. (2007). Cytokeratin markers come of age. Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine. https://doi.org/10.1159/000107582

5. Jacob, J. T., Coulombe, P. A., Kwan, R., & Omary, M. B. (2018). Types I and II Keratin Intermediate Filaments. Cold Spring Harbor perspectives in biology. https://doi.org/10.1101/cshperspect.a018275

6. Ordonez N. G. (2013). Broad-spectrum immunohistochemical epithelial markers: a review. Human pathology. https://doi.org/10.1016/j.humpath.2012.11.016

7. McLean, W. H., & Moore, C. B. (2011). Keratin disorders: from gene to therapy. Human molecular genetics. https://doi.org/10.1093/hmg/ddr379

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Review for Cytokeratin, pan Antibody (NBP2-33200B) (1) 41

Average Rating: 4
(Based on 1 review)
We have 1 review tested in 1 species: Human.

Reviews using NBP2-33200B:
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Immunofluorescence Cytokeratin, pan NBP2-33200B
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reviewed by:
Brendan Ffrench
IF Human 09/23/2016
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Summary

ApplicationImmunofluorescence
Sample TestedMCF7 cell line
SpeciesHuman
LotMSM2-371PABX161-0523-062116-B

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WB Video Protocol
ICC/IF Video Protocol

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Brendan Ffrench
09/23/2016
Application: IF
Species: Human

Bioinformatics

Gene Symbol KRT1