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New Tools to Measure S-Adenosylmethionine (SAM) and Methylation Index

AMSBIO
27 Sept 2015
Lois Manton-O'Byrne, PhD
Executive Editor

Industry news

AMSBIO has launched a unique series of monoclonal and polyclonal antibodies against S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH) that allows immunoassays to be used in methylation regulation research.

Methylation is involved in nearly every aspect of life. SAM is the sole methyl donor for a variety of methyl-transfer reactions in DNA, RNA, proteins, lipids, phosphilipids, hormones and neurotransmitters. Proper DNA methylation is essential for normal embryonic development. However, when the methyl-transferase gene is homozygously deleted, it is lethal. DNA improperly methylated has been found in many tumors. Alterations in DNA methylation patterns induce the expression of oncogenes or silence the expression of tumor-suppressor genes.

Since SAM is an intrinsically unstable molecule, without a distinguished maximum absorption peak, traditionally the determination of its concentration in various biological fluids and tissues has been a challenging task. The new antibodies, available from AMSBIO, offer a simple, convenient immunoassay method that does not require costly instrumentation for the determination of the biological concentration of SAM, and to monitor its change and metabolic paths in the body fluids, tissues and organelles. AMSBIO also offers other immunoassay products to determine the ratio of SAM and SAH, also known as the Methylation Index, which is widely recognized as a valuable way to evaluate the methylation status of humans and other organisms.

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AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.DNA / RNA Extraction and PurificationPurified DNA and RNA are required for numerous downstream molecular biology applications. Consequently, the importance of high-quality DNA/RNA extraction and purification equipment cannot be underestimated. Many purification kits are available and are typically optimized for nucleic acid type and source, including plasmid DNA, genomic DNA, mRNA, RNA and viral nucleic acid purification kits. Automated extraction and purification of nucleic acids can be implemented with magnetic bead separator instruments or high-throughput purification workstations. Find the best DNA/RNA extraction and purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.DNA SequencingDNA sequencing, such as sanger sequencing, is a biological technique that determines the precise order of nucleotide bases in a fragment or template of DNA. DNA sequencers and genetic analyzers are based on capillary electrophoresis, where labeled DNA fragments are electrophoretically separated by size as they migrate through a polymer. Find the best DNA sequencing products, including DNA sequencing kits, genomic libraries and genetic identity kits in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Monoclonal AntibodiesMonoclonal antibodies (mAbs) are lab-made molecules that can bind to specific antigens on cells, making them highly effective in treating cancers, autoimmune diseases, and infections. These targeted therapies are transforming the treatment landscape for many conditions. Browse our peer-reviewed product directory to find monoclonal antibodies for research and clinical applications; compare products, check reviews, and get pricing directly from manufacturers.DNADeoxyribonucleic Acid (DNA) is the main component of chromosomes and the carrier of genetic information of living organisms. Find out here about PCR, NGS, ChIP-Seq, gel imaging, and many other techniques which can be used for the analysis of DNA.DNA MethylationRNARNA is a nucleic acid that plays a key role in gene expression and protein synthesis. It serves as a messenger between DNA and ribosomes, carrying genetic instructions to produce proteins. Advances in RNA-based therapies, such as mRNA vaccines and gene editing, have revolutionized treatment strategies for genetic disorders and infectious diseases. Explore RNA research tools and therapies in our peer-reviewed product directory; compare products, check customer reviews, and get pricing directly from manufacturers.HormonesLipidsLipids are a diverse group of organic compounds that are insoluble in water, including fats, oils, and hormones. They are critical for cellular structure and energy storage. Explore lipid analysis tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.TumorsTumor research focuses on understanding abnormal cell growth that leads to cancer. Identifying biomarkers, studying tumor microenvironments, and developing targeted therapies are critical for advancing cancer treatment. Early detection and personalized treatment options are key to improving outcomes for patients. Browse our peer-reviewed product directory to explore tools for tumor research, diagnostics, and cancer therapies; compare products, read customer reviews, and get pricing directly from manufacturers.

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New Tools to Measure S-Adenosylmethionine (SAM) and Methylation Index