ELISA/assay

Cytochrome b-245 Beta Polypeptide (CYBb) ELISA Kit

MBS2022338

48-Strip-Wells

565 USD

ELISA Kit

Cytochrome b-245 Beta Polypeptide (CYBb) ELISA Kit

Cytochrome b-245 Beta Polypeptide (CYBb)

CGD; GP91PHOX; NOX2; Neutrophil cytochrome b91; Cytochrome b558 beta; Heme-binding membrane glycoprotein gp91phox; Superoxide-generating NADPH oxidase heavy chain

cytochrome b-245 beta polypeptide; Cytochrome b-245 heavy chain; cytochrome b-245 heavy chain; cytochrome b-245, beta polypeptide; CGD91-phox; Cytochrome b(558) subunit beta; Cytochrome b558 subunit beta; Heme-binding membrane glycoprotein gp91phox; NADPH oxidase 2; Neutrophil cytochrome b 91 kDa polypeptide; Superoxide-generating NADPH oxidase heavy chain subunit; gp91-1; gp91-phox; p22 phagocyte B-cytochrome

CYBb

CYBB; CYBB; CGD; NOX2; IMD34; AMCBX2; GP91-1; GP91PHOX; p91-PHOX; GP91-PHOX; NOX2; Cytochrome b558 subunit beta

CY24B_HUMAN

Human

570

This assay has high sensitivity and excellent specificity for detection of Cytochrome b-245 Beta Polypeptide (CYBb). No significant cross-reactivity or interference between Cytochrome b-245 Beta Polypeptide (CYBb) 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: Tissue homogenates, Cell lysates and other biological fluids. Assay Type: Sandwich. Detection Range: 0.156-10ng/mL. Sensitivity: Typically less than 0.059ng/mL.

Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Cytochrome b-245 Beta Polypeptide (CYBb) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Cytochrome b-245 Beta Polypeptide (CYBb) 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 Cytochrome b-245 Beta Polypeptide (CYBb). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Cytochrome b-245 Beta Polypeptide (CYBb). 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 Cytochrome b-245 Beta Polypeptide (CYBb), 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 Cytochrome b-245 Beta Polypeptide (CYBb) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

18568441

AAL76082.1

P04839

65,336 Da

Adaptive Immune System Pathway (366160); Antigen Processing-Cross Presentation Pathway (477122); Class I MHC Mediated Antigen Processing Presentation Pathway (366161); Cross-presentation Of Particulate Exogenous Antigens (phagosomes) Pathway (477123); Disease Pathway (530764); HIF-1 Signaling Pathway (695200); Immune System Pathway (106386); Latent Infection Of Homo Sapiens With Mycobacterium Tuberculosis Pathway (645267); Leukocyte Transendothelial Migration Pathway (83083); Leukocyte Transendothelial Migration Pathway (494)

Cytochrome b (-245) is composed of cytochrome b alpha (CYBA) and beta (CYBB) chain. It has been proposed as a primary component of the microbicidal oxidase system of phagocytes. CYBB deficiency is one of five described biochemical defects associated with chronic granulomatous disease (CGD). In this disorder, there is decreased activity of phagocyte NADPH oxidase; neutrophils are able to phagocytize bacteria but cannot kill them in the phagocytic vacuoles. The cause of the killing defect is an inability to increase the cell's respiration and consequent failure to deliver activated oxygen into the phagocytic vacuole. [provided by RefSeq, Jul 2008]

CYBB: Critical component of the membrane-bound oxidase of phagocytes that generates superoxide. It is the terminal component of a respiratory chain that transfers single electrons from cytoplasmic NADPH across the plasma membrane to molecular oxygen on the exterior. Also functions as a voltage-gated proton channel that mediates the H(+) currents of resting phagocytes. It participates in the regulation of cellular pH and is blocked by zinc. Defects in CYBB are a cause of granulomatous disease,chronic, X-linked (CGD). A disorder characterized by the inability of neutrophils and phagocytes to kill microbes that they have ingested. Patients suffer from life- threatening bacterial/fungal infections. Defects in CYBB are a cause of mycobacteriosis atypical X-linked type 2 (AMCBX2). A rare condition characterized by predisposition to illness caused by moderately virulent mycobacterial species, such as Bacillus Calmette-Guerin (BCG) vaccine and environmental non-tuberculous mycobacteria, and by the more virulent Mycobacterium tuberculosis. Other microorganisms rarely cause severe clinical disease in individuals with susceptibility to mycobacterial infections. Protein type: Membrane protein, integral; Oxidoreductase; Mitochondrial; EC 1.-.-.-; Membrane protein, multi-pass. Chromosomal Location of Human Ortholog: Xp21.1. Cellular Component: Golgi apparatus; phagocytic vesicle membrane; mitochondrion; cell soma; rough endoplasmic reticulum; integral to plasma membrane; dendrite; plasma membrane; NADPH oxidase complex. Molecular Function: protein binding; FAD binding; electron carrier activity; protein heterodimerization activity; metal ion binding; superoxide-generating NADPH oxidase activity; heme binding; voltage-gated ion channel activity. Biological Process: response to drug; respiratory burst; interaction with host; superoxide metabolic process; antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent; antigen processing and presentation of peptide antigen via MHC class I; innate immune response; antigen processing and presentation of exogenous peptide antigen via MHC class I; ion transport; vascular endothelial growth factor receptor signaling pathway; inflammatory response; superoxide release; hydrogen peroxide biosynthetic process; response to nutrient. Disease: Immunodeficiency 34; Granulomatous Disease, Chronic, X-linked

48-Strip-Wells

565 USD

96-Strip-Wells

765

5x96-Strip-Wells

2975

10x96-Strip-Wells

5340