| b4GALNT2

Beta-1,4 N-acetylgalactosaminyltransferase 2 is an enzyme that is encoded by the B4GALNT2 gene.B4GALNT2 catalyzes the last step in the biosynthesis of the 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
 

| Typical data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, wash technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data are provided below for reference only.

 

Concentration (ng/mL)	20	10	5	2.5	1.25	0.625	0.312	0
OD	2.05	1.5	0.99	0.66	0.45	0.33	0.24	0.08
Corrected OD	1.97	1.42	0.91	0.58	0.37	0.25	0.16	-

 

| Repeatability

Intra-assay Precision (Precision within an assay)：CV% < 10%; Inter-assay Precision (Precision between assays)：CV% < 10%
 

| Recovery

The recovery of Human b4GALNT2 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

 

Sample Type	Range(%)	Average Recovery(%)
Tissue Homogenates(n=8)	95-108	104

 

| Linearity

Samples were spiked with high concentrations of Human b4GALNT2 and diluted with Universal Diluent to produce samples with values within the range of the assay.

 

		Tissue Homogenates(n=4)
1 : 2	Range (%)	89-110
	Average (%)	96
1 : 4	Range (%)	105-115
	Average (%)	110