Sulfo DBCO-PEG3-NHS ester

Description

For rapid, sensitive and accurate screening of potential Tyrosinase inhibitors

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Tyrosinase (EC 1.14.18.1) is a copper-binding enzyme that is expressed across a vast range of species ranging from bacteria and fungi to mammals. It is involved in two sequential reactions of the melanin synthesis pathway: first being the hydroxylation of a monophenol and second the conversion of an ortho-diphenol to a quinone. Quinone then undergoes a series of reactions including polymerization to form melanin.

Tyrosinase is of great interest to the agriculture industry since it causes browning of fruits, vegetable, and mushrooms, as well as to the cosmetic industry as it causes skin darkening. Development and screening of tyrosinase inhibitors, therefore, is very useful for conditions such as hyperpigmentation and melasma. Tyrosinase activity is significantly increased in melanoma. Therefore, the detection of tyrosinase activity could be promising as a specific diagnostic test for melanoma and may be useful in monitoring patient response to melanoma treatments.

This Tyrosinase Activity Assay Kit is a simple one-step, plate-based assay for the measurement of tyrosinase activity in biological samples. In this assay, tyrosinase catalyzes the conversion of a phenolic substrate to a Quinone intermediate, which reacts with the tyrosine enhancer forming a highly stable chromophore with absorbance at 520 nm. The assay can detect as low as 30 μU Tyrosinase in biological samples.

Highly reproducibility
Highly Sensitive Assay to Screen for Tyrosinase Activity
Stable formulation of ready to use Reaction Facilitator (tyrosinase)

Hydrolysis probe genotyping master mix for use with 5’ nuclease assays such as TaqMan™, BHQ®, BHQplus® & Zen™ probes. Accurate, robust performance at competitive prices.

About

ProbeSure Master Mix combines class-leading performance with the most competitive prices in the market. ProbeSure Master Mix has provided users with accurate, robust, and consistent performance for many years. It has been carefully optimised to work over a wide range of reaction volumes and sample template qualities.

ProbeSure Master Mix is supplied at 2x concentration for convenience and is supplied with the ROX normalising dye at either high level (500 nM final concentration), low level (25 nM final concentration) or without ROX.

Hydrolysis probe genotyping master mix for use with 5’ nuclease assays such as TaqMan™, BHQ®, BHQplus® & Zen™ probes. Accurate, robust performance at competitive prices.

Introduction

Magen’s HiPure columns are prepared by high quality glass fiber filter membrane as raw materials through membrane cutting, membrane release, ring release, ring pressing, gland, weighing and other processes. HiPure nucleic acid adsorption columns have the characteristics of long-term stability and high binding capacity. Experiments show that the highest binding capacity and binding efficiency of HiPure nucleic acid adsorption columns are basically unchanged when stored at room temperature for 4 years.

The series of nucleic acid columns produced by Magen Biotech are based on carefully selected imported glass fiber membranes (GF/B, GF/D, GF/F). Columns production processes such as polypropylene injection molding materials, injection molding process, and downstream membrane packing and compression rings are strictly controlled. This is to ensure that the column has extremely high adsorption capacity and long-term stability. Compared with conventional products on the market, Magen’s columns are with varieties, and binding rate will not change when stored at room temperature for 4 years.

Details

Specifications

Features	Specifications
Recommended application	Plasmid Medium Yield preparation
Preservation conditions	Room temperature
Stability	Up to 4 years
Filter membrane	High quality glass fiber filter GF/B, 8 layers
Membrane aperture	1.0 μm
Maximum binding yield of plasmid	250 μg
Maximum yield of alcohol mediated Binding	1 mg
Plasmid Yields	Up to 0.25mg
Single liquid carrying capacity of column	4 ml
Minimum elution volume	500 μl
Withstand centrifugal force	5,000 x g
Centrifuge	Lowspeed centrifuge for 15ml centrifuge tubes, >3000 x g, swing-out Rotor, or Fixed Angle Rotor

Adsorption Mechanism

Based on the negatively charged DNA skeleton, it has a high affinity for positively charged glass fibers. In high salt and ethanol solutions, DNA/RNA binds to glass fiber and interacts with hydrophilic matrix on silica through hydrogen bond. DNA/RNA is tightly bound. All pollutants can be removed by washing solution. At high salt concentration, nucleic acids selectively bind to silica gel membrane, while other pollutants, mainly proteins, are removed by membrane washing.

Ordering information

CAT.No.	Product Name	Package
C13121	HiPure DNA Midi Column III (8 x GF/B)with 15ml Collection Tubes	100/Bag

Purchase Guide

Item No.	Product Name	Membrane type/number of layers	Collection tubes	Plasmid DNA binding capacity (Physical adsorption)	gDNA/RNA binding capacity (Alcohol-mediated adsorption)	Minimum Elution volume	Liquid volume capacity
C13010	HiPure DNA Nano Column	2 layers GF/F	2ml without cap	5μg	20μg	10μl	700μl
C13011	HiPure DNA Micro Column	3 layers GF/F	2ml without cap	10μg	50μg	15μl	700μl
C13100	HiPure DNA Mini Column I	2 layers GF/B	2ml without cap	15μg	100μg	30μl	700μl
C13110	HiPure DNA Mini Column II	4 layers GF/B	2ml without cap	35μg	200μg	50μl	800μl
C13111	HiPure RNA Mini Column	3 layers GF/B	2ml without cap	30μg	200μg	30μl	800μl
C13112	HiPure Viral Mini Column	3 layers GF/F	2ml without cap	30μg	200μg	30μl	800μl
C13113	HiPure CFDNA Mini Column	3 layers GF/F,1 layer GF/B	2ml without cap	30μg	200μg	30μl	800μl
C13120	HiPure DNA Midi Column	4 layers GF/B	15ml Centrifuge tube	125μg	1mg	500μl	4ml
C13121	HiPure DNA Midi Column III	8 layers GF/B	15ml Centrifuge tube	250μg	1mg	500μl	4ml
C13122	HiPure DNA Maxi Column	4 layers GF/B	50ml Centrifuge tube	500μg	5mg	1000μl	20ml
C13123	HiPure DNA Maxi Column III	8 layers GF/B	50ml Centrifuge tube	1mg	5mg	1000μl	20ml
C13124	HiPure DNA Maxi Column C	8 layers GF/B	50ml high speed Centrifuge tube	1mg	5mg	700μl	12ml
C13130	HiPure DNA Plate	2 layers GF/F	1.6ml Plate	30μg	100μg	80μl	900μl
C13131	HiPure gDNA Plate	2 layers GF/B	1.6ml Plate	30μg	100μg	80μl	900μl

Note: GF/B pore size is for 1.0μM glass fiber membrane; GF/F pore size is for 0.7μm glass fiber membrane.

Magen’s HiPure columns are prepared by high quality glass fiber filter membrane as raw materials through membrane cutting, membrane release, ring release, ring pressing, gland, weighing and other processes. HiPure nucleic acid adsorption columns have the characteristics of long-term stability and high binding capacity. Experiments show that the highest binding capacity and binding efficiency of HiPure nucleic acid adsorption columns are basically unchanged when stored at room temperature for 4 years.