ELISA/assay

Apolipoprotein B (APOB) ELISA Kit

MBS2022366

48-Strip-Wells

470 USD

ELISA Kit

Apolipoprotein B (APOB) ELISA Kit

Apolipoprotein B (APOB)

Apo-B; FLDB; Apo B-100; Apo B-48

apolipoprotein B, partial; Apolipoprotein B-100; apolipoprotein B-100; apolipoprotein B

APOB

APOB; APOB; FLDB; LDLCQ4; Apo B-100; Apo B-48

APOB_HUMAN

Human

4,563

This assay has high sensitivity and excellent specificity for detection of Apolipoprotein B (APOB). No significant cross-reactivity or interference between Apolipoprotein B (APOB) and analogues was observed.

For unopened kit: All the reagents should be kept according to the labels on vials. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20 degree C upon receipt while the others should be at 4 degree C. For opened kit: When the kit is opened, the remaining reagents still need to be stored according to the above storage condition. Besides, please return the unused wells to the foil pouch containing the desiccant pack, and reseal along entire edge of zip-seal. 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.

Samples: Serum, plasma, tissue homogenates, Cell lysates, cell culture supernates and other biological fluids. Assay Type: Sandwich. Detection Range: 31.25-2000ng/mL. Sensitivity: Typically less than 29ng/mL.

Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Apolipoprotein B (APOB) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Apolipoprotein B (APOB) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 . Intra-Assay: CV<10% . Inter-Assay: CV<12% . Assay Procedure Summary: 1. Prepare all reagents, samples and standards;. 2. Add 100uL standard or sample to each well. Incubate 2 hours at 37 degree C;. 3. Aspirate and add 100uL prepared Detection Reagent A. Incubate 1 hour at 37 degree C;. 4. Aspirate and wash 3 times;. 5. Add 100uL prepared Detection Reagent B. Incubate 30 minutes at 37 degree C;. 6. Aspirate and wash 5 times;. 7. Add 90uL Substrate Solution. Incubate 15-25 minutes at 37 degree C;. 8. Add 50uL Stop Solution. Read at 450nm immediately.

Principle of the Assay: 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 Apolipoprotein B (APOB). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Apolipoprotein B (APOB). 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 Apolipoprotein B (APOB), 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 Apolipoprotein B (APOB) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

553189

AAA51752.1

P04114

515,605 Da

Binding And Uptake Of Ligands By Scavenger Receptors Pathway (771599); Cell Surface Interactions At The Vascular Wall Pathway (106062); Chylomicron-mediated Lipid Transport Pathway (106157); Disease Pathway (530764); Diseases Associated With Visual Transduction Pathway (771581); FOXA1 Transcription Factor Network Pathway (137979); Fat Digestion And Absorption Pathway (194385); Fat Digestion And Absorption Pathway (194324); Hemostasis Pathway (106028); LDL-mediated Lipid Transport Pathway (106159)

This gene product is the main apolipoprotein of chylomicrons and low density lipoproteins. It occurs in plasma as two main isoforms, apoB-48 and apoB-100: the former is synthesized exclusively in the gut and the latter in the liver. The intestinal and the hepatic forms of apoB are encoded by a single gene from a single, very long mRNA. The two isoforms share a common N-terminal sequence. The shorter apoB-48 protein is produced after RNA editing of the apoB-100 transcript at residue 2180 (CAA- UAA), resulting in the creation of a stop codon, and early translation termination. Mutations in this gene or its regulatory region cause hypobetalipoproteinemia, normotriglyceridemic hypobetalipoproteinemia, and hypercholesterolemia due to ligand-defective apoB, diseases affecting plasma cholesterol and apoB levels. [provided by RefSeq, Jul 2008]

APOB: Apolipoprotein B is a major protein constituent of chylomicrons (apo B-48), LDL (apo B-100) and VLDL (apo B-100). Apo B-100 functions as a recognition signal for the cellular binding and internalization of LDL particles by the apoB/E receptor. Defects in APOB are a cause of familial hypobetalipoproteinemia type 1 (FHBL1). A disorder characterized by highly reduced plasma concentrations of low density lipoproteins, and dietary fat malabsorption. Clinical presentation may vary from no symptoms to severe gastrointestinal and neurological dysfunction similar to abetalipoproteinemia. Defects in APOB are a cause of familial ligand-defective apolipoprotein B-100 (FDB). FDB is a dominantly inherited disorder of lipoprotein metabolism leading to hypercholesterolemia and increased proneness to coronary artery disease (CAD). The plasma cholesterol levels are dramatically elevated due to impaired clearance of LDL particles by defective APOB/E receptors. Defects in APOB associated with defects in other genes (polygenic) can contribute to hypocholesterolemia. Protein type: Secreted; Carrier; Secreted, signal peptide. Chromosomal Location of Human Ortholog: 2p24-p23. Cellular Component: Golgi apparatus; extracellular space; endoplasmic reticulum membrane; intracellular membrane-bound organelle; endoplasmic reticulum lumen; early endosome; extracellular region; cytosol; actin cytoskeleton; chylomicron; cell soma; cytoplasm; plasma membrane; endosome membrane. Molecular Function: heparin binding; protein binding; low-density lipoprotein receptor binding; cholesterol transporter activity; phospholipid binding. Biological Process: phototransduction, visible light; lipoprotein catabolic process; response to lipopolysaccharide; response to carbohydrate stimulus; post-embryonic development; response to selenium ion; triacylglycerol catabolic process; retinoid metabolic process; transmembrane transport; cholesterol metabolic process; nervous system development; receptor-mediated endocytosis; cholesterol transport; in utero embryonic development; regulation of cholesterol biosynthetic process; response to virus; lipoprotein metabolic process; cholesterol efflux; cholesterol homeostasis; sperm motility; fertilization; lipoprotein biosynthetic process; lipoprotein transport; artery morphogenesis; spermatogenesis; triacylglycerol mobilization; blood coagulation; leukocyte migration. Disease: Hypercholesterolemia, Autosomal Dominant, Type B; Hypobetalipoproteinemia, Familial, 1

48-Strip-Wells

470 USD

96-Strip-Wells

630

5x96-Strip-Wells

2410

10x96-Strip-Wells

4320