Purity
>90%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.1 EU per 1 μg of the protein by the LAL method.
Activity
Measured by the ability of the immobilized protein to support the adhesion of Caki‑2 human clear cell carcinoma epithelial cells. When 3 x 10 4 cells/well are added to rhDesmoglein-3 coated plates (10 µg/mL, 100 µL/well), approximately 45‑65% will adhere after 90 minutes at 37° C.
Source
Mouse myeloma cell line, NS0-derived
Human Desmoglein-3
(Glu50-Arg615)
Accession # P32926IEGRMD Human IgG1
(Pro100-Lys330)N-terminus C-terminus Accession #
N-terminal Sequence
AnalysisGlu50
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
89.5 kDa (monomer)
SDS-PAGE
105-110 kDa, reducing conditions
1720-DM |
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Formulation Lyophilized from a 0.2 μm filtered solution in MES and NaCl. | ||
Reconstitution Reconstitute at 100 μg/mL in sterile PBS. | ||
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. | ||
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Background: Desmoglein-3
Desmoglein-3, also known as pemphigus vulgaris antigen (PVA), is a 130 kDa transmembrane glycoprotein that belongs to the cadherin family of calcium dependent adhesion molecules (1 - 3). Human Desmoglein-3 is synthesized with a 26 amino acid (aa) propeptide. The mature protein consists of a 566 aa extracellular domain (ECD) that contains four cadherin-like domains, a 25 aa transmembrane segment, and a 359 aa cytoplasmic domain (4). Within the ECD, human Desmoglein-3 shares 78% aa sequence identity with mouse and rat Desmoglein-3. It shares 44%, 47%, and 56% aa sequence identity with Desmoglein-1, -2, and -4 respectively. Desmoglein-3 is one of the principal components of desmosomes which form adhesive contacts between epithelial cells (1, 2). It is expressed in the basal and suprabasal layers of stratified epithelia in many tissues (4 - 6). During apoptosis, Desmoglein-3 is cleaved by caspases, plus MMP-2, and MMP-9 at sites within the cytoplasmic and extracellular regions, resulting in shortened transmembrane forms and a soluble 75 kDa ECD fragment (7, 8). The downregulation of Desmoglein-3 in oral squamous cell carcinoma correlates with metastatic potential (9). Desmoglein-3 is the target of autoantibodies in pemphigus vulgaris, a blistering skin disorder with compromised inter-keratinocyte adhesion (6, 10). Binding of these antibodies triggers Desmoglein-3 internalization and degradation by keratinocytes (10).
References:
Kottke, M.D. et al. (2006) J. Cell Sci. 119:797.
Garrod, D.R. et al. (2002) Mol. Membr. Biol. 19:81.
Leckband, D. and A. Prakasam (2006) Annu. Rev. Biomed. Eng. 8:259.
Amagai, M. et al. (1991) Cell 67:869.
Silos, S.A. et al. (1996) J. Biol. Chem. 271:17504.
Amagai, M. et al (1996) J. Invest. Dermatol. 106:351.
Weiske, J. et al. (2001) J. Biol. Chem. 276:41175.
Cirillo, N. et al. (2007) Oral Dis. 13:341.
Wang, L. et al. (2007) Virchows Arch. Sept. 11 epub.
Calkins, C.C. et al. (2006) J. Biol. Chem. 281:7623.
Entrez Gene IDs:
1830 (Human)
Alternate Names:
Cadherin family member 6; CDHF6; CDHF6130-kD pemphigus vulgaris antigen; desmoglein 3 (pemphigus vulgaris antigen); desmoglein 3; Desmoglein3; Desmoglein-3; DKFZp686P23184,130 kDa pemphigus vulgaris antigen; DSG3; pemphigus vulgaris antigen; PVA
