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Multiplex Assay Kit for Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay)

HRG4; Pro-NRG4; Pro-neuregulin-4, membrane-bound isoform

(Note: Up to 8-plex in one testing reaction)

Specificity

This assay has high sensitivity and excellent specificity for detection of Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 94-105 99
EDTA plasma(n=5) 84-94 89
heparin plasma(n=5) 92-105 96

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 80-95% 81-96% 78-91% 84-102%
EDTA plasma(n=5) 81-90% 92-101% 78-101% 99-105%
heparin plasma(n=5) 81-89% 78-90% 91-104% 86-94%

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
96-well plate 1 Plate sealer for 96 wells 4
Pre-Mixed Standard 2 Standard Diluent 1×20mL
Pre-Mixed Magnetic beads (22#:NRG4) 1 Analysis buffer 1×20mL
Pre-Mixed Detection Reagent A 1×120μL Assay Diluent A 1×12mL
Detection Reagent B (PE-SA) 1×120μL Assay Diluent B 1×12mL
Sheath Fluid 1×10mL Wash Buffer (30 × concentrate) 1×20mL
Instruction manual 1

Assay procedure summary

1. Preparation of standards, reagents and samples before the experiment;
2. Add 100μL standard or sample to each well,
    add 10μL magnetic beads, and incubate 90min at 37°C on shaker;
3. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60min at 37°C on shaker;
4. Wash plate on magnetic frame for three times;
5. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
6. Wash plate on magnetic frame for three times;
7. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.

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Magazine Citations
Metabolism A case–control study: Association between serum neuregulin 4 level and non-alcoholic fatty liver disease PubMed: 26476959
Diabetes Research and Clinical Practice Comparison of serum NeureCavia (Guinea pig )lin 4 (Nrg4) levels in adults with newly diagnosed type 2 diabetes mellitus and controls without diabetes Pubmed:27329015
Scientific Reports Short-chain fatty acids and inulin, but not guar gum, prevent diet-induced obesity and insulin resistance through differential mechanisms in mice. pubmed:28733671
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
RPC174Mu01 Recombinant Neuregulin 4 (NRG4) Positive Control; Immunogen; SDS-PAGE; WB.
RPC174Mu02 Recombinant Neuregulin 4 (NRG4) Positive Control; Immunogen; SDS-PAGE; WB.
PAC174Mu01 Polyclonal Antibody to Neuregulin 4 (NRG4) WB; IHC; ICC; IP.
PAC174Mu02 Polyclonal Antibody to Neuregulin 4 (NRG4) WB; IHC; ICC; IP.
SEC174Mu ELISA Kit for Neuregulin 4 (NRG4) Enzyme-linked immunosorbent assay for Antigen Detection.
LMC174Mu Multiplex Assay Kit for Neuregulin 4 (NRG4) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.