CHI3L1 ELISA kit (Human)

SKU: SEB463Hu

Size: 96Tests

# of Times Cited in literature: 6

Prepare Time: 1-3 days(please inquire for mutiple units)

Target Name: CHI3L1

Target Full Name: Chitinase-3-like Protein 1

Alternative Names: GP39; CHI3-L1; YKL40; Chondrex; Chitinase 3-Like 1; Chondrocyte Protein YKL40; 39 kDa synovial protein

Target Species: Human

Uniprot: P36222

Gene ID: 1116

Featured Series: SE kit

Featured Series Function: Detects protein (regular version)

Specificity: Reactive with Human CHI3L1 / Chitinase-3-like Protein 1

Method: Colormetric

Detection principle: Double-antibody Sandwich

Detection range: 62.5-4,000pg/mL

Sensitivity: 21.4pg/mL

Assay Time: 3h

Sample Size: 100uL

Recommended/Predicted Sample Types: Serum, Plasma, Tissue Homogenates and other Biological Fluids

Assay Precision: Intra-Assay: CV<10%, Inter-Assay: CV<12%

Reproducibility test menthod: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Chitinase-3-like Protein 1 (CHI3L1) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Chitinase-3-like Protein 1 (CHI3L1) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100

Storage: 4°C for 1 month/ -20°C for long-term(One year within shelf life)

Shelf-life: 12 months

Specificity: This assay has high sensitivity and excellent specificity for detection of Chitinase-3-like Protein 1 (CHI3L1). No significant cross-reactivity or interference between Chitinase-3-like Protein 1 (CHI3L1) and analogues was observed.

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.

Assay procedure summary: 1. Prepare all reagents, samples and standards; 2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C; 3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C; 4. Aspirate and wash 3 times; 5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C; 6. Aspirate and wash 5 times; 7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C; 8. Add 50µL Stop Solution. Read at 450nm immediately.

Test principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Chitinase-3-like Protein 1 (CHI3L1). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Chitinase-3-like Protein 1 (CHI3L1). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Chitinase-3-like Protein 1 (CHI3L1), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Chitinase-3-like Protein 1 (CHI3L1) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Research Area: Metabolic pathway;Infection immunity;Bone metabolism;Rheumatology;

References Citing This Product: Serum YKL-40: a potential biomarker for psoriasis or endothelial dysfunction in psoriasis?

YKL-40 is correlated with FEV1 and the asthma control test (ACT) in asthmatic patients: influence of treatment

Assessment of pulsed electromagnetic field therapy with Serum YKL‐40 and ultrasonography in patients with knee osteoarthritis

YKL-40 expression in chronic obstructive pulmonary disease: relation to acute exacerbations and airway remodeling

Compositions and Methods for Diagnosing Lung Cancer

Chronic obstructive pulmonary disease (COPD)--from biomarkers to clinical phenotypes

Differences in Osteoimmunological Biomarkers Predictive of Psoriatic Arthritis among a Large Italian Cohort of Psoriatic Patients

High Blood Eosinophil and YKL-40 Levels, as Well as Low CXCL9 Levels, are Associated with Increased Readmission in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease