Multiplex Assay Kit for Complement Receptor 1, Erythrocyte (CR1) ,etc. by FLIA (Flow Luminescence Immunoassay)

CD35; C3BR; KN; C3b/C4b Receptor,Including Knops Blood Group System; Immune Adherence Receptor

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

Specificity

This assay has high sensitivity and excellent specificity for detection of Complement Receptor 1, Erythrocyte (CR1) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Complement Receptor 1, Erythrocyte (CR1) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Complement Receptor 1, Erythrocyte (CR1) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Complement Receptor 1, Erythrocyte (CR1) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 83-101 97
EDTA plasma(n=5) 80-89 84
heparin plasma(n=5) 91-98 94
sodium citrate plasma(n=5) 91-104 97

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Complement Receptor 1, Erythrocyte (CR1) ,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 Complement Receptor 1, Erythrocyte (CR1) ,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 Complement Receptor 1, Erythrocyte (CR1) ,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) 93-105% 81-90% 88-96% 91-101%
EDTA plasma(n=5) 98-105% 93-104% 81-95% 93-101%
heparin plasma(n=5) 89-105% 89-105% 96-104% 97-104%
sodium citrate plasma(n=5) 81-90% 88-95% 80-104% 95-102%

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#:CR1) 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
Turkish Neurosurgery Ghrelin Alleviates Spinal Cord Injury in Rats Via Its Anti-inflammatory Effects JTN: 913
17 Complement Receptor 1 Gene Variants Are Associated with Erythrocyte Sedimentation Rate PubMed: 21700265
Journal of Neural Transmission Cerebrospinal fluid levels of complement proteins C3, C4 and CR1 in Alzheimer's disease PubMed: 22488444
Annals of Neurology  High complement levels in astrocyte‐derived exosomes of Alzheimer disease Pubmed:29406582
Scientific Reports Human complement receptor type 1 (CR1) protein levels and genetic variants in chronic Chagas Disease Pubmed:29323238
Alzheimers & Dementia Complement protein levels in plasma astrocyte-derived exosomes are abnormal in conversion from mild cognitive impairment to Alzheimer's disease …
FASEB JOURNAL Traumatic brain injury increases plasma astrocyte‐derived exosome levels of neurotoxic complement proteins Pubmed: 31916313
Frontiers in Immunology Hepatitis B Virus Infection Among Leprosy Patients: A Case for Polymorphisms Compromising Activation of the Lectin Pathway and Complement Receptors 33643280
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