Propargyl-PEG4-NHS ester

Overview

• Detection kits for XMRV
• Available in TaqMan format for analysis

Xenotropic murine leukemia virus-related virus (XMRV) is a gammaretrovirus. The virus was first described in 2006 and has since been isolated from human biological samples. XMRV belongs to the family Retroviridae and the genus gammaretrovirus. It has a single-stranded RNA genome that replicates through a DNA intermediate. The virus gets its name due to its close relationship with the murine leukemia viruses (MuLVs). The viral genome is approximately 8100 nucleotides in length and is 95% identical with several endogenous retroviruses of mice. While gammaretroviruses have well-characterized oncogenic effects in animals, they have not been shown to cause human cancers. However, XMRV was recently discovered in human prostate cancers and is the first gammaretrovirus known to infect humans. In addition to prostate cancer, a possible association with chronic fatigue syndrome has been reported, however it has yet to be established whether XMRV is a cause of this disease.

The causal role of XMRV in cancer has yet to be established and the virus does not appear to be capable of transforming cells directly. In prostate cancer, XMRV protein has been found in tumour-associated but nonmalignant stromal cells, but not in the actual prostate cancer cells. This raises the possibility that the virus may support tumorigenesis. In other studies, XMRV proteins and nucleic acids were found in malignant cells.

Details

Supporting Data

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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.

Component	Cat. TM34750 (100 preps)	Cat. TM34710 (100 preps)
MDx TaqMan 2X PCR Master Mix	2 x 700 μL	–
XMRV Primer & Probe Mix	280 μL	280 μL
XMRV Positive Control	150 μL	150 μL
Nuclease-Free Water (Negative Control)	1.25 mL	1.25 mL
Product Insert	1	1

Overview

• Ready-to-use
• Quantitative
• Highly Stable
• Precise
• Eight discrete fragments from 50 bp to 2000 bp
• Higher intensity reference band at 500 bp

The FastRunner DNA Ladder is prepared to ensure quality and batch-to-batch consistency. This Ladder contains eight discrete fragments ranging from 50 bp to 2000 bp with a higher intensity reference band at 500 bp. This Ladder is ideal for quick sizing of PCR products and restriction digests.

Contents
1mL of premixed DNA ladder (0.5µg/10µL) in loading buffer (10mM EDTA, 10% glycerol, 0.015% bromophenol blue, and 0.17% SDS).

Details

Supporting Data

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FastRunner DNA Ladder (Cat# 12800) – 100 loads

Ladder Properties:
• Eight discrete bands, ranging from 50 bp to 2000 bp
• Higher intensity band at 500 bp for easy reference

Fragment	Size (bp)	Mass (ng)
1	2000	104
2	1500	88
3	1000	68
4	750	59
5	500	93
6	300	28
7	150	35
8	50	25

Recommended Use:
Mix thoroughly. For best results, load 10µL of DNA ladder per well. For precise mass determination with a densitometer, stain gel after electrophoresis using 0.5µg/mL ethidium bromide for 30-40 minutes. The table above shows the size and mass for each band based on 10µL ladder per well.

Storage: 
Stable at room temperature. For longer term storage, -20°C is recommended.

This ladder was standardized using 10µL of DNA per lane on a 0.8 cm thick, 13 x 15 cm, 1.0% agarose gel run in TAE buffer.

bis-PEG4-endo-BCN is a homobifunctional click chemistry linker, PEG increase its aqueous solubility. The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

bis-PEG4-endo-BCN is a homobifunctional click chemistry linker, PEG increase its aqueous solubility. The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.