Involucrin antibody | SY5

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Mouse anti Human Involucrin

Product Type
Monoclonal Antibody
Product Code Applications Pack Size List Price Quantity
0.1 mg loader

Mouse anti human involucrin antibody, clone SY5 recognizes human involucrin, a 585 amino acid soluble protein encoded by the IVL gene expressed in epidermal keratinocytes as they tend towards terminal differentiation. Involucrin is produced in the stratum spinosum initially in the cell cytosol from where it moves to the cell membrane, associates with transglutaminase and becomes cross-linked to membrane proteins, offering structural support to the cell and forming a stable envelope below the plasma membrane. Mouse anti human involucrin antibody, clone SY5 recognizes an epitope between residues 421-568 of human involucrin.

Involucrin expression is seen in the normal granular cells of the epidermis associated with the plasma membrane during the early phase of cornified envelope maturation (Ishida-Yamamoto et al. 1996) and expression is increased in psoriatic epidermis with abnormal cornified envelope maturation (Ishida-Yamamoto and Iizuka 1995). Involucrin staining is also maintained, associated with the cornified epidermis in epidermolytic hyperkeratosis, a condition associated with mutations to mutations in genes codong for cytokeratins 1 and 10 (Ishida-Yamamoto et al. 1995).

Product Details

Target Species
Species Cross-Reactivity
Target SpeciesCross Reactivity
N.B. Antibody reactivity and working conditions may vary between species.
Product Form
Purified IgG - liquid
Purified IgG prepared by affinity chromatography on Protein A
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
Purified involucrin from human keratinocytes.
Approx. Protein Concentrations
0.5 mg/ml
Fusion Partners
Spleen cells from immunized Balb/c mise were fused with cells from the P3X63Ag8 murine myeloma cell line.

Storage Information

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended.
12 months from date of despatch

More Information

Entrez Gene
GO Terms
GO:0001533 cornified envelope
GO:0030674 protein binding, bridging
GO:0005198 structural molecule activity
GO:0005737 cytoplasm
GO:0010224 response to UV-B
GO:0018153 isopeptide cross-linking via N6-(L-isoglutamyl)-L-lysine
GO:0031424 keratinization
For research purposes only

Applications of Involucrin antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Immunohistology - Frozen
Immunohistology - Paraffin
Western Blotting
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Histology Positive Control Tissue
MCF-7 cells. Localized to upper spinous and granular layers in normal skin.

Secondary Antibodies Available

Description Product Code Applications Pack Size List Price Quantity
Goat anti Mouse IgG (H/L):Alk. Phos. (Multi Species Adsorbed) STAR117A E WB 0.5 mg loader
Goat anti Mouse IgG (H/L):DyLight®488 (Multi Species Adsorbed) STAR117D488GA F IF 0.1 mg loader
Goat anti Mouse IgG (H/L):DyLight®680 (Multi Species Adsorbed) STAR117D680GA F WB 0.1 mg loader
Goat anti Mouse IgG (H/L):DyLight®800 (Multi Species Adsorbed) STAR117D800GA F IF WB 0.1 mg loader
Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed) STAR117F F 0.5 mg loader
Goat anti Mouse IgG (H/L):HRP (Multi Species Adsorbed) STAR117P C E WB 0.5 mg loader
Goat anti Mouse IgG (Fc):FITC STAR120F C F 1 mg loader
Goat anti Mouse IgG (Fc):HRP STAR120P E WB 1 mg loader
Rabbit F(ab')2 anti Mouse IgG:RPE STAR12A F 1 ml loader
Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed) STAR13B C E P RE WB 1 mg loader
Goat anti Mouse IgG:FITC (Rat Adsorbed) STAR70 F 0.5 mg loader
Goat anti Mouse IgG:RPE (Rat Adsorbed) STAR76 F 1 ml loader
Goat anti Mouse IgG:HRP (Rat Adsorbed) STAR77 C E P 0.5 mg loader
Goat anti Mouse IgG/A/M:Alk. Phos. STAR87A C E WB 1 mg loader
Goat anti Mouse IgG/A/M:HRP (Human Adsorbed) STAR87P E 1 mg loader
Rabbit F(ab')2 anti Mouse IgG:Dylight®800 STAR8D800GA F IF WB 0.1 mg loader
Rabbit F(ab')2 anti Mouse IgG:FITC STAR9B F 1 mg loader

Application Based External Images

Flow Cytometry

Product Specific References

References for Involucrin antibody

  1. Hudson, D.L. et al. (1992) Characterization of eight monoclonal antibodies to involucrin.
    Hybridoma . 3: 367-79.
  2. Ishida-Yamamoto, A. et al. (1997) Involucrin and SPRR Are Synthesized Sequentially in Differentiating Cultured Epidermal Cells.
    J Invest Dermatol. 108: 12-6.
  3. Caldelari, R. et al. (2000) Long-term culture of murine epidermal keratinocytes.
    J Invest Dermatol. 114: 1064-5.
  4. Ishida-Yamamoto, A. et al. (1996) Immunoelectron microscopic analysis of cornified cell envelope formation in normal and psoriatic epidermis.
    J Histochem Cytochem. 44: 167-75.
  5. Janes,S.M. and Watt, F.M. (2004) Switch from alphavbeta5 to alphavbeta6 integrin expression protects squamous cell carcinomas from anoikis.
    J Cell Biol. 166: 419-31.
  6. Michael, M. et al. (2014) BPAG1-e restricts keratinocyte migration through control of adhesion stability.
    J Invest Dermatol. 134: 773-82.
  7. Hanada, T. et al. (2014) Keratinization induced by air exposure in the reconstructed human epidermal model: An in vitro model of a cultured epithelial autograft
    J Biosci Bioeng. pii: S1389-1723(14)00071-1.
  8. Sawant S et al. (2016) Establishment of 3D Co-Culture Models from Different Stages of Human Tongue Tumorigenesis: Utility in Understanding Neoplastic Progression.
    PLoS One. 11 (8): e0160615.
  9. Srivastava, S.S. et al. (2018) Keratin 5/14‑mediated cell differentiation and transformation are regulated by TAp63 and Notch‑1 in oral squamous cell carcinoma‑derived cells.
    Oncol Rep. Mar 06 [Epub ahead of print].

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