SEMA3A ELISA kit (Human)

SKU: SEL917Hu

Size: 96Tests

# of Times Cited in literature: 7

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

Target Name: SEMA3A

Target Full Name: Semaphorin 3A

Alternative Names: SEMAL; Hsema-I; Hsema-III; SEMA1; SEMAD; SEMAIII; SemD; Coll-1; Sema Domain,Immunoglobulin Domain(Ig),Transmembrane Domain(TM)and Short Cytoplasmic Domain 3A

Target Species: Human

Uniprot: Q14563

Gene ID: 10371

Featured Series: SE kit

Featured Series Function: Detects protein (regular version)

Specificity: Reactive with Human SEMA3A / Semaphorin 3A

Method: Colormetric

Detection principle: Double-antibody Sandwich

Detection range: 1.56-100ng/mL

Sensitivity: 0.62ng/mL

Assay Time: 3h

Sample Size: 100uL

Recommended/Predicted Sample Types: Serum, Plasma, Tissue Homogenates, Cell Lysates, Cell Culture Supernates 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 Semaphorin 3A (SEMA3A) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Semaphorin 3A (SEMA3A) 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 Semaphorin 3A (SEMA3A). No significant cross-reactivity or interference between Semaphorin 3A (SEMA3A) 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 Semaphorin 3A (SEMA3A). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Semaphorin 3A (SEMA3A). 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 Semaphorin 3A (SEMA3A), 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 Semaphorin 3A (SEMA3A) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Research Area: CD & Adhesion molecule;

References Citing This Product: Semaphorin 3A is a marker for disease activity and a potential immunoregulator in systemic lupus erythematosus

Cathelicidin LL-37 Induces Semaphorin 3A Expression in Human Epidermal Keratinocytes: Implications for Possible Application to Pruritus

Neurofilament light chain level is a weak risk factor for the development of MS.

Gold Nanoparticles Induce Tumor Vessel Normalization and Impair Metastasis by Inhibiting Endothelial Smad2/3 Signaling

Extract of Scutellaria baicalensis induces semaphorin 3A production in human epidermal keratinocytes