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Multiplex Assay Kit for Surfactant Associated Protein G (SPG) ,etc. by FLIA (Flow Luminescence Immunoassay)

SP-G; SFTPG; SFTA2; Surfactant Associated 2

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

Specificity

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

Recovery

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

Matrix Recovery range (%) Average(%)
serum(n=5) 95-103 99
EDTA plasma(n=5) 80-101 94
heparin plasma(n=5) 90-99 96

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Surfactant Associated Protein G (SPG) ,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 Surfactant Associated Protein G (SPG) ,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 Surfactant Associated Protein G (SPG) ,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) 96-105% 86-96% 78-97% 78-97%
EDTA plasma(n=5) 91-99% 96-103% 91-99% 89-96%
heparin plasma(n=5) 93-101% 78-104% 94-101% 83-92%

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#:SPG) 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
Molecular Neurobiology Localization, Occurrence, and CSF Changes of SP-G, a New Surface Active Protein with Assumable Immunoregulatory Functions in the CNS Pubmed:30032421
Biomolecules Surfactant Protein-G in Wildtype and 3xTg-AD Mice: Localization in the Forebrain, Age-Dependent Hippocampal Dot-like Deposits and Brain Content Pubmed:35053244
Int J Mol Sci Regionally Altered Immunosignals of Surfactant Protein-G, Vascular and Non-Vascular Elements of the Neurovascular Unit after Experimental Focal Cerebral … Pubmed:35682557
Catalog No. Related products for research use of Homo sapiens (Human) Organism species Applications (RESEARCH USE ONLY!)
RPD755Hu01 Recombinant Surfactant Associated Protein G (SPG) Positive Control; Immunogen; SDS-PAGE; WB.
PAD755Hu01 Polyclonal Antibody to Surfactant Associated Protein G (SPG) WB
SED755Hu ELISA Kit for Surfactant Associated Protein G (SPG) Enzyme-linked immunosorbent assay for Antigen Detection.
LMD755Hu Multiplex Assay Kit for Surfactant Associated Protein G (SPG) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.