| Product Name | Human Salivary duct autoantibody (SDA) ELISA Kit |
|---|---|
| Description | B4GALNT2 catalyzes the last step in the biosynthesis of the human Sd(a) antigen through the addition of an N-acetylgalactosamine residue via a beta-1,4 linkage to a subterminal galactose residue substituted with an alpha-2,3-linked sialic acid. B4GALNT2 also catalyzes the last step in the biosynthesis of the Cad antigen. The longer transcript encodes a deduced 566-amino acid protein with a calculated molecular mass of 63.3 kD. It contains an N-terminal cytosolic domain, followed by a transmembrane domain and a long catalytic domain. The shorter transcript encodes a deduced 506-amino acid protein with calculated molecular mass of 57.0 kD. It has a different N-terminal cytosolic domain than the full-length form. Northern blot analysis detected B4GALNT2 transcripts of 8.8, 6.1, 4.7, 3.8, and 1.65 kb. This assay has high sensitivity and excellent specificity for detection of Human SDA. No significant cross-reactivity or interference between Human SDA and analogues was observed. |
| Method | Competitive ELISA |
| Detection Range | 0.312-20 ng/mL |
| Sensitivity | 0.113 ng/mL |
| Reactivity | Human |
| Sample Types | Serum, Plasma, Other biological fluids. |
| Background | B4GALNT2 catalyzes the last step in the biosynthesis of the human Sd(a) antigen through the addition of an N-acetylgalactosamine residue via a beta-1,4 linkage to a subterminal galactose residue substituted with an alpha-2,3-linked sialic acid. B4GALNT2 also catalyzes the last step in the biosynthesis of the Cad antigen. The longer transcript encodes a deduced 566-amino acid protein with a calculated molecular mass of 63.3 kD. It contains an N-terminal cytosolic domain, followed by a transmembrane domain and a long catalytic domain. The shorter transcript encodes a deduced 506-amino acid protein with calculated molecular mass of 57.0 kD. It has a different N-terminal cytosolic domain than the full-length form. Northern blot analysis detected B4GALNT2 transcripts of 8.8, 6.1, 4.7, 3.8, and 1.65 kb. |
| Supplier | Abebio |
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