ANTIBODIES

Contributor Information
- Name Fiona Watt
- Institute Absolute Antibody ; Cancer Research UK, London Research Institute: Lincoln's Inn Fields
Tool Details
- Tool name: Anti-Involucrin [SY5]
- Clone: rSY5
- Tool type: Antibodies
- Tool sub-type: Primary antibody
- Class: Recombinant
- Conjugate: Unconjugated
- Reactivity: Dog ; Human ; Pig ; Primate
- Host: Mouse
- Application: IHC ; IF ; IP ; WB
- Description: Clone SY5 recognizes a protein of 66kDa-170kDa, identified as involucrin. In Western blotting of cultured human keratinocytes, this MAb reacts with a 120kDa protein. It stains the involucrin in a variety of sizes: 170kDa in MCF-7 cells, a doublet of ~115kDa and 150kDa in gorilla and owl monkey, 66kDa in dog, and a doublet of 105kDa in pig. Its epitope maps between codon 421-568 of human involucrin. Involucrin is expressed in a range of stratified squamous epithelia, including the cornea, which lacks a distinct cornified layer. In normal epidermis, it is first expressed in the upper spinous layers, and in keratinocyte cultures, all cells that have left the basal layer express it.Involucrin is a protein precursor of the epidermal cornified envelope and a differentiation marker of human keratinocytes. SY5 is useful for studies of changes in involucrin expression in pathological studies. Involucrin expression is altered in pathological conditions: in psoriasis and other benign epidermal hyperplasias, involucrin expression begins closer to the basal layer than normal; expression is abnormal in squamous cell carcinomas and premalignant lesions, and is reduced in severe dysplasias of the larynx and cervix.
- Immunogen: Purified involucrin from human keratinocytes.
- Isotype: IgG1
- Research area: Cancer; Cell signaling and signal transduction
- For Research Use Only
Target Details
- Target: Involucrin
- Target background: Clone SY5 recognizes a protein of 66kDa-170kDa, identified as involucrin. In Western blotting of cultured human keratinocytes, this MAb reacts with a 120kDa protein. It stains the involucrin in a variety of sizes: 170kDa in MCF-7 cells, a doublet of ~115kDa and 150kDa in gorilla and owl monkey, 66kDa in dog, and a doublet of 105kDa in pig. Its epitope maps between codon 421-568 of human involucrin. Involucrin is expressed in a range of stratified squamous epithelia, including the cornea, which lacks a distinct cornified layer. In normal epidermis, it is first expressed in the upper spinous layers, and in keratinocyte cultures, all cells that have left the basal layer express it.Involucrin is a protein precursor of the epidermal cornified envelope and a differentiation marker of human keratinocytes. SY5 is useful for studies of changes in involucrin expression in pathological studies. Involucrin expression is altered in pathological conditions: in psoriasis and other benign epidermal hyperplasias, involucrin expression begins closer to the basal layer than normal; expression is abnormal in squamous cell carcinomas and premalignant lesions, and is reduced in severe dysplasias of the larynx and cervix.
Application Details
- Application: IHC ; IF ; IP ; WB
Handling
- Format: Liquid
- Concentration: 1 mg/ml
- Storage buffer: PBS only
- Storage conditions: -20ðC
- Shipping conditions: Shipping at 4ðC
Related Tools
References
- • Original hybridoma first published in Hudson et al. 1992. Hybridoma. 11(3):367-79. PMID: 1500072.
- • Characterisation of eight monoclonal antibodies to involucrin.