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Multiplex Assay Kit for Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array)

HSP90-B1; ECGP; GP96; GRP94; TRA1; Glycoprotein 96; Tumor Rejection Antigen(gp96)1;94 kDa glucose-regulated protein; Endoplasmin

Specificity

This assay has high sensitivity and excellent specificity for detection of Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array).
No significant cross-reactivity or interference between Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) and the recovery rates were calculated by comparing the measured value to the expected amount of Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 78-88 84
EDTA plasma(n=5) 89-97 93
heparin plasma(n=5) 94-102 99

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) 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 Heat Shock Protein 90kDa Beta 1 (HSP90b1) ,etc. by CBA (Cytometric Bead Array) 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) 98-105% 97-105% 81-102% 82-95%
EDTA plasma(n=5) 78-91% 84-103% 78-101% 87-101%
heparin plasma(n=5) 87-94% 78-90% 88-102% 78-101%

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

Assay procedure summary

1. Add 200μL analysis buffer solution to each well of the plate for pre-wetting;
2. Preparation of standards, reagents and samples before the experiment;
3. Add 100μL standard or sample to each well, add 10μL magnetic beads, and incubate 120 minutes protect from light at 25°C on shaker;
4. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60 minutes protect from light at 25°C on shaker;
5. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent B, and incubate 30 minutes protect from light at 25°C on shaker;
6. Wash plate once on magnetic frame;
7. Add 100μL sheath fluid, swirl for 10 minutes, read on the machine.

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Magazine Citations
Cell Stress and Chaperones The influence of high-fat, high-sugar diet and bariatric surgery on HSP70 and HSP90 plasma and liver concentrations in diet-induced obese rats Pubmed: 30840227
Biology-Basel Biomechanical Properties of Blood Plasma Extracellular Vesicles Revealed by Atomic Force Microscopy 33374530
Cell Death & Disease The HSP GRP94 interacts with macrophage intracellular complement C3 and impacts M2 profile during ER stress 33483465
Front Med Four-protein model for predicting prognostic risk of lung cancer Pubmed:35266102
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