CLIA Kit for Protease Activated Receptor 2 (PAR2)

F2RL1; F2-RL1; GPR11; PAR2; Coagulation Factor II(thrombin)receptor-Like 1; G-protein coupled receptor 11; Thrombin receptor-like 1

Specificity

This assay has high sensitivity and excellent specificity for detection of Protease Activated Receptor 2 (PAR2).
No significant cross-reactivity or interference between Protease Activated Receptor 2 (PAR2) and analogues was observed.

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Protease Activated Receptor 2 (PAR2) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Protease Activated Receptor 2 (PAR2) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
Substrate A 1×10mL Substrate B 1×2mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 100µL Substrate Solution. Incubate 10 minutes at 37°C;
8. Read RLU value immediately.

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Magazine Citations
The Open Respiratory Medicine Journal Biomarkers of Fibroproliferative Healing in Fibrosing Idiopathic Interstitial Pneumonias PubMed: PMC3551240
Experimental Dermatology Cathepsin S, a new pruritus biomarker in clinical dandruff/seborrhoeic dermatitis evaluation Onlinelibrary: exd.12357
Exp Ther Med. PAR2, IL4R, TGFβ and TNFα in bronchoalveolar lavage distinguishes extrinsic allergic alveolitis from sarcoidosis Pubmed:Pmc4079423
BMC Neurol Proteinase-activated receptor 2 and disease biomarkers in cerebrospinal fluid in cases with autopsy-confirmed prion diseases and other neurodegenerative diseases PubMed: 25886404
Journal of Interferon & Cytokine Research Epithelial Cell-Derived Cytokines Contribute to the Pathophysiology of Eosinophilic Chronic Rhinosinusitis Pubmed:26540312
International journal of molecular sciences Cathepsin S Alters the Expression of Pro-Inflammatory Cytokines and MMP-9, Partially through Protease—Activated Receptor-2, in Human Corneal Epithelial Cells Pubmed: 30423938
Journal of Cosmetic Dermatology Whitening effects of cosmetic formulation in the vascular component of skin pigmentation Pubmed: 31074159
diagnostics Interstitial Score and Concentrations of IL-4R¦Á, PAR-2, and MMP-7 in Bronchoalveolar Lavage Fluid Could Be Useful Markers for Distinguishing Idiopathic Interstitial?¡­ 33924683
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