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描述 产品目录编号 S7821 品牌系列 Chemicon®
商名 - Chemicon
- CpGenome
描述 CpGenome Universal Methylated DNA 概述 CpGenome™ Universal Methylated DNA is enzymatically methylated human male genomic DNA. This product is intended for use with the CpGenome™ DNA Modification Kit (S7820) or with amplification primers. It can be used as a methylation-positive control for gene methylation studies.
Materials Provided:
Each vial contains 10 micrograms (100 μl) of human genomic DNA at a concentration of 0.1 μg/μl. Note: this DNA must first be bisulfite modified (S7820) to use a primer that is specific for the methylated form of the gene of interest.
Validation:
Methylation-specific PCR (MSP) was performed on the DNA prior to and post-enzymatic methylation. Sets of primers from the CpG WIZ™ p15 and E-cadherin Amplification Kits were used in the assay. A set of primers designed to anneal to unmethylated DNA and a second set designed to anneal to methylated sequences were used from each kit. The methylated primer sets generated products only after the DNA was methylated.
CpGenome and CpG WIZ are trademarks of Serologicals Corporation. CpG WIZ™ Methylation Products apply technologies exclusively licensed from The Johns Hopkins University School of Medicine. Methylation-specific PCR (MSP) technology is covered under U.S. Patent # 5,786,146.背景信息 Methylation of cytosines located 5' to guanosine is known to have a profound effect on the expression of many eukaryotic genes. In normal cells methylation occurs predominantly in CG-poor regions, while CG-rich areas, called CpG-islands remain unmethylated. The exceptions are the extensive methylation of CpG islands associated with transcriptional inactivation of regulatory regions of imprinted genes and genes on the inactive X-chromosome of females. Aberrant methylation of normally unmethylated CpG islands has been documented as a relatively frequent event in immortalized and transformed cells and has been associated with transcriptional inactivation of defined tumor suppresser genes in human cancers. Hundreds of CpG islands are now known to exhibit the characteristic of hypermethylation in tumors.
Several methods have been developed to determine the methylation status of cytosine. These include digestion with methylation sensitive restriction enzymes as in restriction landmark genomic scanning, oligonucleotide arrays, genomic DNA sequencing and methylation specific PCR (MSP). Some techniques are more useful for discovery while others are better used for monitoring of known methylated cytosines. Genomic DNA sequencing, although time consuming and labor intensive, offers a more universal detection method. MSP is now an established technology for the monitoring of abnormal gene methylation in selected gene sequences. Utilizing small amounts of DNA, this procedure offers sensitive and specific detection of 5-methylcytosine in promoters. It is being exploited to define tumor suppresser gene function, and to provide a new strategy for early tumor detection.
The initial step of both genomic sequencing and MSP is to perform a bisulfite modification of the DNA sample. MSP then involves PCR amplification with specific primers designed to distinguish methylated from unmethylated DNA.产品信息 演示 Liquid in TE (10mM Tris-HCL, 0.1mM EDTA) with no preservatives. 应用 应用 Enzymatically methylated human male genomic DNA to be used as a methylation-positive control for gene methylation studies. 应用说明 For MSP primer design, please use the MethPrime software package. 生物信息 品种反应性 Human 修改 - Methylation
产品使用声明 使用声明 - Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
储存和货运信息 存储条件 Recommended Storage: -15°C to -25°C, in aliquots, protected from freeze-thaws for up to two years from date of receipt. Do not freeze and thaw the same -20°C aliquot more than 3X for best results. Multiple freeze thaws can fragment DNA. Storage at -70°C can be used for longer term storage if necessary; minimize multiple freeze thaws for best results. 包装信息 数量 10 µg
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