DESCRIPTION

CD97 is a member of the seven-transmembrane subfamily of the class B G protein-coupled receptor (GPCR) group of the epidermal growth factor (EGF). It is present on the surface of lymphocytes, monocytes, macrophages, dendritic cells, granulocytes, and smooth muscle, being a dimeric glycoprotein. It plays a vital role in cell adhesion, migration, and cell connection regulation. CD97 is expressed on T-cells, but rarely on B-cells. CD97 might play key roles in cellular adhesion, through connections with other proteins of the cell surface and of the extracellular matrix.

PRINCIPLE OF THE ASSAY

Sandwich ELISA structure (Detection antibody labeled with HRP) A capture antibody is pre-coated onto the bottom of wells which binds to analyte of interest. A detection antibody labeled with HRP also binds to the analyte. TMB acts as the HRP substrate and the solution color will change from colorless to blue. A stop solution containing sulfuric acid turns solution yellow. The color intensity is proportional to the quantity of bound protein which is measurable at 450 nm with the correction wavelength set at 630 nm.

PRECISION

Intra-assay Precision (Precision within an assay) Three samples of known concentration were tested 8 times on one plate to assess intra-assay precision. Inter-assay Precision (Precision between assays) Three samples of known concentration were tested in 16 separate assays to assess inter-assay precision.

Intra-assay Precision

Sample	n	Mean (pg/mL)	SD	CV%
1	8	2,308.6	146.2	6.3
2	8	616.8	34.7	5.6
3	8	192.1	12.9	6.7

Inter-assay Precision

Sample	n	Mean (pg/mL)	SD	CV%
1	16	2,359.8	237.0	10.0
2	16	627.3	51.2	8.2
3	16	194.1	17.0	8.8

RECOVERY

The recovery of human CD97 spiked to three different levels throughout the range of the assay in cell lysate was evaluated.

Sample Type		Average% of Expected	Range (%)
Cell lysate	1:32	90	86-92
	1:64	97	92-103

LINEARITY

To assess the linearity of the assay, samples were diluted with the appropriate Sample Diluent to produce samples with values within the dynamic range of the assay. (The cell lysate was initially diluted 1:4. )

		Cell lysate
1:2	Average% of Expected	100
	Range (%)	-
1:4	Average% of Expected	90
	Range (%)	87-92
1:8	Average% of Expected	92
	Range (%)	88-95
1:16	Average% of Expected	113
	Range (%)	105-125

CALIBRATION

This immunoassay is calibrated against a highly purified recombinant human Human CD97 Sandwich ELISA Kit produced at Sunlong Medical™.

Ordering & shipping

• Minimum order: 1 kit
• Lead time: varies with order quantity and specifications. Please consult your local distributor or our sales team for confirmation
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• Shipping: FedEx / DHL / UPS express; cold-chain packing available on request
• Price: USD, per kit (48T / 96T options available)