| RNASE2

Eosinophil-derived neurotoxin is an enzyme that is encoded by the RNASE2 gene.The protein encoded by this gene is found in eosinophil granulocytes. It is closely related to the eosinophil cationic protein (RNASE3) from which it diverged ~50 million years ago after the split between the old world and the new world monkeys. It is relatively neutral and has cytotoxic properties. It is capable of reducing the activity of single strand RNA viruses in culture through its enzymatic activity. It also serves as an attractant to immune cells.
 

| 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	2.49	1.73	1.26	0.83	0.64	0.46	0.34	0.09
Corrected OD	2.4	1.64	1.17	0.74	0.55	0.37	0.25	-

 

| Repeatability

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

| Recovery

The recovery of Human RNASE2 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

 

Sample Type	Range(%)	Average Recovery(%)
Serum(n=8)	84-101	96
Plasma(n=8)	91-105	102
Tissue Homogenates(n=8)	96-108	103

 

| Linearity

Samples were spiked with high concentrations of Human RNASE2 and diluted with Universal Diluent to produce samples with values within the range of the assay.

 

		Serum(n=4)	Plasma(n=4)	Tissue Homogenates(n=4)
1 : 2	Range (%)	84-95	86-96	90-110
	Average (%)	91	93	96
1 : 4	Range (%)	89-103	87-108	105-115
	Average (%)	95	98	108