Water-soluble, substrate for sortase mediated labeling of proteins. Sortase catalyzes a transpeptidase reaction between a specific internal sequence of a protein and an amine group present on the N-terminus of triglycine recently has become an area of great interest. This method of labeling proteins has been denoted as “Sortagging”. Proteins conjugated to DBCO-Gly-Gly-Gly can be further modified with azide-containing molecules creating site-specific protein conjugates. Examples of creating protein conjugates using sortagging include site-specifically PEGylating proteins,1 site-specific protein-lipid conjugates,2 and constructing peptides and glycosylphosphatidylinositol chimeras.3 Sortase has also been used in peptide synthesis to cyclize peptides to create macrocyclic peptides, glycopeptides4 and protein−protein conjugates.
Detail
Water-soluble, substrate for sortase mediated labeling of proteins. Sortase catalyzes a transpeptidase reaction between a specific internal sequence of a protein and an amine group present on the N-terminus of triglycine recently has become an area of great interest. This method of labeling proteins has been denoted as “Sortagging”. Proteins conjugated to DBCO-Gly-Gly-Gly can be further modified with azide-containing molecules creating site-specific protein conjugates. Examples of creating protein conjugates using sortagging include site-specifically PEGylating proteins,1 site-specific protein-lipid conjugates,2 and constructing peptides and glycosylphosphatidylinositol chimeras.3 Sortase has also been used in peptide synthesis to cyclize peptides to create macrocyclic peptides, glycopeptides4 and protein−protein conjugates.
Food and beverage samples such as milk or milk based products, wine, fruit juices, paper (and cardboard), waste treatment samples and other materials (e.g. biological cultures etc.).
This product has been discontinued.
The hydrogen peroxide Assay Kit provides a simple robust method for the measurement of hydrogen peroxide. This kit utilizes a highly sensitive Megaplex Red probe which in the presence of horseradish peroxidase (HRP), allows for the measurement of H2O2 in a sample. Upon oxidation of the probe by HRP, a coloured product (resorufin) is formed that can be measured in fluorescence mode using excitation in the range 530-560 nm and emission at ~ 590 nm or colourimetrically at 570 nm. The excitation and emission maxima of Megaplex Red are 571 nm and 585 nm respectively.
Fluorometric/UV method for the determination of H2O2 content in a variety of samples.
Advantages
Simple format
Very competitive price (cost per test)
Ability to run in fluorescence or absorbance mode
User friendly – Detailed protocol provided for the creation of calibration curve and the calculation of concentration in fluorescence mode. Single point standard for quicker and simpler analysis in absorbance mode.
Mega-Calc™ software tool is available from our website for hassle-free raw data processing
Suitable for manual, microplate and auto-analyser formats
All reagents stable for > 2 years
Document
The hydrogen peroxide Assay Kit provides a simple robust method for the measurement of hydrogen peroxide. This kit utilizes a highly sensitive Megaplex Red probe which in the presence of horseradish peroxidase (HRP), allows for the measurement of H2O2 in a sample. Upon oxidation of the probe by HRP, a coloured product (resorufin) is formed that can be measured in fluorescence mode using excitation in the range 530-560 nm and emission at ~ 590 nm or colourimetrically at 570 nm. The excitation and emission maxima of Megaplex Red are 571 nm and 585 nm respectively.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
myo-Inositol
Assay Format:
Spectrophotometer
Detection Method:
Absorbance
Wavelength (nm):
492
Signal Response:
Increase
Linear Range:
2 to 35 µg of myo-inositol per assay
Limit of Detection:
0.8 mg/L
Reaction Time (min):
~ 30 min
Application examples:
Animal feeds, food and other materials.
Method recognition:
Novel method
The myo-Inositol Assay Kit is a reliable and accurate enzymatic UV-method for the specific measurement and analysis of myo-inositol in animal feeds, foods and various other materials.
Phytic acid content of samples with very low levels of free myo-inositol can also be determined using K-INOSL. This can be achieved by measuring the amount of myo-inositol released after de-phosphorylation of phytic acid with the enzymes phytase and alkaline phosphatase, as used with the Megazyme Phytic Acid/Total Phosphorus Assay Kit (K-PHYT).
Not suitable for the determination of myo-inositol in baby formula.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
All reagents stable for > 2 years after preparation
Only enzymatic kit available
Rapid reaction
Mega-Calc™ software tool is available from our website for hassle-free raw data processing
Standard included
Document
The myo-Inositol Assay Kit is a reliable and accurate enzymatic UV-method for the specific measurement and analysis of myo-inositol in animal feeds, foods and various other materials.
Human Immunodeficiency Virus (HIV) TaqMan RT-PCR Detection Kits
Product Info
Document
Product Info
Overview
Detection kits for HIV
Available in TaqMan format for analysis
Human Immunodeficiency Virus (HIV) is a retrovirus which destroys essential cells in the human immune system, such as CD4+ lymphocytes (a type of T cell), macrophages and dendritic cells. Infection with HIV therefore leads to an impaired immune system and increased susceptibility to opportunistic cancers and infections. Due to the mutating nature of HIV and damage to the T cells, the immune system is unable to fight off infections and disease. Without treatment, HIV can progress to Acquired Immunodeficiency Syndrome (AIDS). The rate of HIV progression to AIDS depends on a number of different factors including viral, host and environmental factors. However, with adherence to antiretroviral therapy (ART), many individuals with HIV will never progress to AIDS, having near normal life expectancy. Transmission of HIV is through direct contact with infected bodily fluids, either sexually; by the sharing of blood-contaminated needles or instruments; maternally through childbirth or breastfeeding; or via blood transfusion/organ transplant.
HIV TaqMan RT-PCR Kit, 100 reactions
Ready to use format, including Master Mix for the target and PCR control to monitor for PCR inhibition and validate the quality
Specific Primer and Probe mix for the pathogen/virus/viroid of interest
Primer and Probe mix
Positive and negative control to confirm the integrity of the kit reagents
HIV TaqMan RT-PCR Probe/Primer Set and Controls, 100 reactions
Specific Primer/Probe mix and Positive Control for the pathogen/virus/viroid of interest
Nuclease-free water
Can be used together with Norgen’s RT-PCR Master Mix (#28113) or customer supplied master mix
For research use only and NOT intended for in vitro diagnostics.
Storage Conditions and Product Stability All kit components can be stored for 1 year after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.
