GCK ELISA Kit

Produktnummer ABIN455208

Produktdetails GCK ELISA Kit

Target: GCK (Glucokinase (Hexokinase 4) (GCK))

Reaktivität: Human

Nachweismethode: Colorimetric

Methodentyp: Sandwich ELISA

Detektionsbereich: 78-5000 pg/mL

Untere Nachweisgrenze: 78 pg/mL

Applikation: ELISA

Verwendungszweck: This immunoassay kit allows for the specific measurement of human glucokinase, GCK concentrations in cell culture supernates, serum and plasma.

Proben: Cell Culture Supernatant, Serum, Plasma

Analytische Methode: Quantitative

Spezifität: This assay recognizes recombinant and natural human GCK.

Kreuzreaktivität (Details): No significant cross-reactivity or interference was observed.

Sensitivität: < 19.5 pg/mL
The sensitivity of this assay, or Lower Limit of Detection (LLD) was defined as the lowest detectable concentration that could be differentiated from zero.

Produktmerkmale: Homo sapiens,Human,Glucokinase,Hexokinase type IV,HK IV,Hexokinase-4,HK4,Hexokinase-D,GCK,2.7.1.2

Bestandteile: Reagent (Quantity): Assay plate (1), Standard (2), Sample Diluent (1x20ml), Assay Diluent A (1x10ml), 2 Assay Diluent B (1x10ml), Detection Reagent A (1x120µl), Detection Reagent B (1x120µl), Wash Buffer(25 x concentrate) (1x30ml), Substrate (1x10ml), Stop Solution (1x10ml)

Anwendungsinformationen

Probenmenge: 100 μL

Plattentyp: Pre-coated

Protokoll: This assay employs the quantitative sandwich enzyme immunoassay technique. A antibody specific for GCK has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any GCK present is bound by the immobilized antibody. An enzyme-linked antibody specific for GCK is added to the wells. Following a wash to remove any unbound antibody-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of GCK bound in the initial step. The color development is stopped and the intensity of the color is measured.

Aufbereitung der Reagenzien:

Bring all reagents to room temperature before use. Wash Buffer - If crystals have formed in the concentrate, warm to room temperature and mix gently until the crystals have completely dissolved. Dilute 20 mL of Wash Buffer Concentrate into deionized or distilled water to prepare 500 ml of Wash Buffer. Standard - Reconstitute the Standard with 1.0 mL of Sample Diluent. This reconstitution produces a stock solution of 10,000 pg/mL. Allow the standard to sit for a minimum of 15 minutes with gentle agitation prior to making serial dilutions. The diluted standard serves as the high standard (5,000 pg/mL). The Sample Diluent serves as the zero standard (0 pg/mL). Detection Reagent A and B - Dilute to the working concentration specified on the vial label using Assay Diluent A and B (1:100), respectively.

Probennahme: Cell culture supernates - Remove particulates by centrifugation and assay immediately or aliquot and store samples at ≤ -20 °C. Avoid repeated freeze-thaw cycles. Serum - Use a serum separator tube (SST) and allow samples to clot for 30 minutes before centrifugation for 15 minutes at approximately 1000 x g. Remove serum and assay immediately or aliquot and store samples at -20 °C. Plasma - Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples for 15 minutes at 1000 x g at 2 - 8 °C within 30 minutes of collection. Store samples at ≤ -20 °C. Avoid repeated freeze-thaw cycles. Note: Citrate plasma has not been validated for use in this assay.

Testdurchführung:

Allow all reagents to reach room temperature. Arrange and label required number of strips. 3
1. Prepare all reagents, working standards and samples as directed in the previous sections.
2. Add 100 uL of Standard, Control, or sample per well. Cover with the adhesive strip. Incubate for 2 hours at 37 °C.
3. Remove the liquid of each well, don’t wash.
4. Add 100 uL of Detection Reagent A to each well. Incubate for 1 hour at 37°C. Detection Reagent A may appear cloudy. Warm to room temperature and mix gently until solution appears uniform.
5. Aspirate each well and wash, repeating the process three times for a total of three washes. Wash by filling each well with Wash Buffer (350 uL) using a squirt bottle, multi-channel pipette, manifold dispenser or autowasher. Complete removal of liquid at each step is essential to good performance. After the last wash, remove any remaining Wash Buffer by aspirating or decanting. Invert the plate and blot it against clean paper towels.
6. Add 100 uL of Detection Reagent B to each well. Cover with a new adhesive strip.Incubate for 1 hours at 37 °C.
7. Repeat the aspiration/wash as in step
5. 8. Add 90 uL of Substrate Solution to each well. Incubate for 30 minutes at room temperature. Protect from light.
9. Add 50 uL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing.
10. Determine the optical density of each well within 30 minutes, using a microplate reader set to 450 nm.
Important Note:
1. The wash procedure is critical. Insufficient washing will result in poor precision and falsely elevated absorbance readings.
2. It is recommended that no more than 32 wells be used for each assay run if manual pipetting is used since pipetting of all standards, specimens and controls should be completed within 5 minutes. A full plate of 96 wells may be used if automated pipetting is available.
3. Duplication of all standards and specimens, although not required, is recommended. 4
4. When mixing or reconstituting protein solutions, always avoid foaming.
5. To avoid cross-contamination, change pipette tips between additions of each standard level, between sample additions, and between reagent additions. Also, use separate reservoirs for each reagent.
6. To ensure accurate results, proper adhesion of plate sealers during incubation steps is necessary.

Ergebnisberechnung:

Average the duplicate readings for each standard, control, and sample and subtract the average zero standard optical density. Create a standard curve by reducing the data using computer software capable of generating a four parameter logistic (4-PL) curve-fit. As an alternative, construct a standard curve by plotting the mean absorbance for each standard on the y-axis against the concentration on the x-axis and draw a best fit curve through the points on the graph. The data may be linearized by plotting the log of the GCK concentrations versus the log of the O.D. and the best fit line can be determined by regression analysis. This procedure will produce an adequate but less precise fit of the data. If samples have been diluted, the concentration read from the standard curve must be multiplied by the dilution factor.

Beschränkungen: Nur für Forschungszwecke einsetzbar

Handhabung

Handhabung: 1. The kit should not be used beyond the expiration date on the kit label.
2. Do not mix or substitute reagents with those from other lots or sources.
3. If samples generate values higher than the highest standard, further dilute the samples with the Assay Diluent and repeat the assay. Any variation in standard diluent, operator, pipetting technique, washing technique,incubation time or temperature, and kit age can cause variation in binding.
4. This assay is designed to eliminate interference by soluble receptors, ligands, binding proteins, and other factors present in biological samples. Until all factors have been tested in the Immunoassay, the possibility of interference cannot be excluded.

Lagerung: 4 °C/-20 °C

Informationen zur Lagerung: The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20 °C upon being received. The other reagents can be stored at 4 °C.

Details zu GCK

Target: GCK (Glucokinase (Hexokinase 4) (GCK))

Andere Bezeichnung: GCK (GCK Produkte)

Synonyme: FGQTL3 ELISA Kit, GK ELISA Kit, GLK ELISA Kit, HHF3 ELISA Kit, HK4 ELISA Kit, HKIV ELISA Kit, HXKP ELISA Kit, LGLK ELISA Kit, MODY2 ELISA Kit, Gk ELISA Kit, Gls006 ELISA Kit, GCK ELISA Kit, BA4487 ELISA Kit, glk ELISA Kit, hk4 ELISA Kit, hhf3 ELISA Kit, hkiv ELISA Kit, hxkp ELISA Kit, gck-A ELISA Kit, mody2 ELISA Kit, glucokinase ELISA Kit, GLUKA ELISA Kit, RNGK2 ELISA Kit, glucokinase ELISA Kit, glucokinase (hexokinase 4) L homeolog ELISA Kit, glucokinase (hexokinase 4) ELISA Kit, GCK ELISA Kit, Gck ELISA Kit, glcK ELISA Kit, Bphyt_1025 ELISA Kit, Halhy_6548 ELISA Kit, gk ELISA Kit, gck.L ELISA Kit, gck ELISA Kit

Hintergrund: Glucokinase is an enzyme that facilitates phosphorylation of glucose to glucose-6-phosphate. It plays an important role in regulating blood glucose levels and a potentially attractive target for diabetes of the young type 2 and persistent hyperinsulinemic hypoglycemia of infancy. It acts as the “glucose sensor” for the pancreas, so that when the blood glucose rises, the amount of insulin produced also increases. This means that the blood glucose does not become too high. GCK is expressed in pancreatic beta cells where it functions as the major glucose sensor of the body, determining the “set point” for insulin secretion. GCK is also expressed in the liver, where it catalyzes the first committed step in the disposal of glucose. Phosphorylation of glucose by glucokinase appears to be the rate-limiting step for glucose catabolism. A lack of glucokinase activity leads to reduced insulin secretion, hyperglycemia and has been implicated as a cause for maturity onset diabetes of the youth (MODY). In fact, heterozygous point mutations in the gene encoding GCK have been detected in individuals suffering from MODY.

Pathways: MAPK Signalweg, Positive Regulation of Peptide Hormone Secretion, Carbohydrate Homeostasis, Cellular Glucan Metabolic Process, Regulation of Carbohydrate Metabolic Process