Multiplex Assay Kit for Protein S (PROS) ,etc. by FLIA (Flow Luminescence Immunoassay)

PSA; PS; PS26; PS21; PS22; PS23; PS24; PS25; VKDPS; VKDP-S; Protein Sa; Vitamin K Dependent Protein S

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

Specificity

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

Recovery

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

Matrix Recovery range (%) Average(%)
serum(n=5) 94-101 97
EDTA plasma(n=5) 93-101 96
heparin plasma(n=5) 96-104 99
sodium citrate plasma(n=5) 94-102 97

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Protein S (PROS) ,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 Protein S (PROS) ,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 Protein S (PROS) ,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) 79-101% 78-104% 95-102% 84-105%
EDTA plasma(n=5) 82-102% 90-97% 84-97% 90-103%
heparin plasma(n=5) 88-99% 80-92% 80-97% 88-97%
sodium citrate plasma(n=5) 94-105% 80-95% 82-96% 80-102%

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#:PROS) 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
Arthritis Res Ther Validation in the ESPOIR cohort of vitamin K-dependent protein S (PROS) as a potential biomarker capable of predicting response to the methotrexate … Pubmed:35313956
Catalog No. Related products for research use of Homo sapiens (Human) Organism species Applications (RESEARCH USE ONLY!)
RPB971Hu01 Recombinant Protein S (PROS) Positive Control; Immunogen; SDS-PAGE; WB.
RPB971Hu02 Recombinant Protein S (PROS) Positive Control; Immunogen; SDS-PAGE; WB.
PAB971Hu01 Polyclonal Antibody to Protein S (PROS) WB; IHC; ICC; IP.
PAB971Hu02 Polyclonal Antibody to Protein S (PROS) WB; IHC; ICC; IP.
LAB971Hu71 Biotin-Linked Polyclonal Antibody to Protein S (PROS) WB; IHC; ICC.
MAB971Hu22 Monoclonal Antibody to Protein S (PROS) WB; IHC; ICC; IP.
LAB971Hu72 Biotin-Linked Monoclonal Antibody to Protein S (PROS) WB; IHC; ICC.
SEB971Hu ELISA Kit for Protein S (PROS) Enzyme-linked immunosorbent assay for Antigen Detection.
LMB971Hu Multiplex Assay Kit for Protein S (PROS) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.