Simple Plex Human ST2/IL-33R/IL-1R4 Cartridge

Catalog #: SPCKB-PS-000221 Datasheet / COA / SDS

Simple Plex Human ST2/IL-33R/IL-1R4 assay kit for use on Ella instrument. Contains cartridge, sample diluent SD13, and wash buffer

Catalog #	Availability	Size / Price	Qty
SPCKB-PS-000221
SPCKA-PS-000221
SPCKC-PS-000221

Control Products Available

898103: Simple Plex Control for Human ST2/IL-33R/IL-1R4

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Summary Precision Recovery Linearity Data Examples Product Datasheets Preparation and Storage Background Related Research Areas

Simple Plex Human ST2/IL-33R/IL-1R4 Cartridge Summary

Sample Type & Volume Required Per Well*

Cell Culture Supernates (10 uL), Serum (10 uL), EDTA Plasma (10 uL), Heparin Plasma (10 uL)

Sensitivity

8.72 pg/mL

Assay Range

36.9 - 56,350 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)

Specificity

Natural and recombinant human ST2.

Cross-reactivity

< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.

Interference

No significant interference observed with available related molecules.

*The Sample Volume represented is based on the amount of sample incorporated into the reaction after taking into account the assay’s minimum required dilution for a given matrix. Serial dilution may be necessary to achieve some of the final sample volumes represented.

Product Summary

Simple Plex assay for the detection of human ST2 in cell culture supernatant, serum, and plasma (EDTA/Heparin)

Precision

Intra-Assay Precision (Precision within an assay) Each control was tested 16 times in one assay

Inter-Assay Precision (Precision between assays) Replicates of each control were tested in multiple assays performed by at least three technicians using two lots of reagents

Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma

	Intra-Assay Precision		Inter-Assay Precision
Sample	1	2	1	2
n	16	16	24	22
Mean (pg/mL)	141	7745	151	7857
Standard Deviation	2.4	231	17.7	287
CV%	1.7	3	11.7	3.6

Recovery

Recovery was not necessary as ST2 shows natural linearity data from a neat sample to a 1:16 dilution.

Sample Type	Average % Recovery	Range %
Cell Culture Samples (n=3)	103	101-106

Linearity

Samples containing and/or spiked with high concentrations of human ST2 were serially diluted with Sample Diluent to produce samples within the dynamic range of the assay

Scientific Data

N/A

Human ST2 Simple Plex Assay Standard Curve

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Human ST2 Ella Assay Standard Curve

Product Datasheets

Product Datasheet

COA

SDS

Preparation and Storage

Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: ST2/IL-33R

ST2, also known as IL-1 R4, is a component of the receptor for the proinflammatory cytokine Interleukin-33. The IL-33 receptor additionally includes IL-1 RAcp which also associates with IL-1 RI and IL-1 R rp2/IL-1 R6. A soluble form of ST2 functions as a decoy receptor. IL-33 promotes Th2-biased immune responses, resulting in eosinophilia, mast cell activation, and allergic inflammation. In addition, IL-33 enhances inflammation-associated hypernociception and protects from atherosclerosis and cardiac myocyte hypertrophy. Soluble ST2 is elevated in the serum under inflammatory conditions including allergic asthma, sepsis, trauma, dengue fever, pulmonary disease, and lupus. It is also associated aortic stenosis, congestive cardiomyopathy, and risk of cardiovascular heart failure and death.

Long Name:

Interleukin 33 Receptor

Entrez Gene IDs:

9173 (Human); 17082 (Mouse)

Alternate Names:

DER4; DER4ST2growth stimulation-expressed; Fit-1; IL-1 R4; IL1R4; IL-1R4; IL-1RL1; IL-33 R; IL33R; IL-33R; interleukin 1 receptor-like 1; interleukin 1 receptor-related protein; interleukin-1 receptor-like 1; Ly84; MGC32623; Protein ST2; ST2; ST2L; ST2V; T1; T1homolog of mouse growth stimulation-expressed