TUNEL assay is the cell death detection method where the biochemical marker of apoptosis is DNA fragmentation. The assay involves the microscopical detection of generated DNA fragments with free 3'-hydroxyl residues. in apoptotic cells using enzyme terminal deoxynucleotidyl transferase (TdT) which adds biotinylated nucleotides at the site of DNA breaks. Major challenges of this method involve proper access of the enzyme which could be hampered by poor permeabilization and/or excessive fixation with cross-linking fixative (common with archival tissue). This issue can be resolved by optimizing the incubation time with Proteinase K or CytoninTM.
Get tips on using GeneJET Genomic DNA Purification Kit to perform DNA isolation / purification Bacteria - Gram positive Streptomyces. Sp
Get tips on using GenElute™ Bacterial Genomic DNA Kit to perform DNA isolation / purification Bacteria - Gram positive Actinomycytes
Get tips on using GenElute™ Bacterial Genomic DNA Kit to perform DNA isolation / purification Bacteria - Gram negative E.coli
Get tips on using GeneChip® Human Genome U133 Plus 2.0 Array to perform Microarray Human - Endometrial stromal cells Expression array
Get tips on using GeneChip® Human Genome U133 Plus 2.0 Array to perform Microarray Human - Precision cut lung slices Expression array
Get tips on using GeneChip® Human Genome U133 Plus 2.0 Array to perform RNA amplification & labeling Mammalian - RNA amplification and Labeling Human Endometrial Stromal cells Biotin
Get tips on using GeneChip® Human Genome U133 Plus 2.0 Array to perform RNA amplification & labeling Mammalian - RNA, rhesus monkey brain tissue Human endothelail stromal cells
Get tips on using GeneRead Size Selection Kit (50) to perform Whole Genome Amplification NGS library purification
RNA-Seq is a method to sequence RNA by applying Next Generation Sequencing (NGS). The quality of RNA is critical for the success of RNA-Seq. The integrity of RNA is measured by the RNA integrity number (RIN). RIN is computed from RNA electrophoresis and electropherogram profiles (the peak area of the 28S rRNA should be approximately twice the peak area of the 18S rRNA). If you get the RIN value lower than 7, the possibility of getting the low quality of RNA-seq data is high. To get a high quality RNA, it is better to work with fresh samples or snap-freeze the tissues in liquid nitrogen as quickly as possible and store them at -80°C until further use. Make sure designated areas and all your filter tips, microfuge tubes, plastic, and glassware are RNase-free.
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