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Spin column-based nucleic acid purification. Silica in a spin column with water and with DNA sample in chaotropic buffer. Spin column-based nucleic acid purification is a solid phase extraction method to quickly purify nucleic acids. This method relies on the fact that nucleic acid will bind to the solid phase of silica under certain conditions.
DNA extraction. The first isolation of deoxyribonucleic acid (DNA) was done in 1869 by Friedrich Miescher. [1] DNA extraction is the process of isolating DNA from the cells of an organism isolated from a sample, typically a biological sample such as blood, saliva, or tissue. It involves breaking open the cells, removing proteins and other ...
New England Biolabs (NEB) is an American life sciences company which produces and supplies recombinant and native enzyme reagents for life science research. [2] It also provides products and services supporting genome editing, synthetic biology and next-generation sequencing. [3] NEB also provides free access to research tools such as REBASE ...
Plasmid miniprep. 0.8% agarose gel ethidium bromide -stained. A plasmid preparation is a method of DNA extraction and purification for plasmid DNA. It is an important step in many molecular biology experiments and is essential for the successful use of plasmids in research and biotechnology. [1][2] Many methods have been developed to purify ...
An R-loop is a three-stranded nucleic acid structure, which consists of a DNA-RNA hybrid duplex and a displaced single stranded DNA (ssDNA). [2] R-loops are predominantly formed in cytosine -rich genomic regions during transcription [ 2 ] and are known to be involved with gene expression and immunoglobulin class switching .
Genomic deoxyribonucleic acid (abbreviated as gDNA[1]) is chromosomal DNA, in contrast to extra-chromosomal DNAs like plasmids. Most organisms have the same genomic DNA in every cell; however, only certain genes are active in each cell to allow for cell function and differentiation within the body. [2] gDNA predominantly resides in the cell ...
A genomic library is a collection of overlapping DNA fragments that together make up the total genomic DNA of a single organism. The DNA is stored in a population of identical vectors, each containing a different insert of DNA. In order to construct a genomic library, the organism's DNA is extracted from cells and then digested with a ...
ZymoGenetics. ZymoGenetics, Inc was one of the oldest biotechnology / pharmaceutical companies in the USA, [1] based in Seattle, Washington. The company was involved in the development of therapeutic proteins. Located on Lake Union, the address of the ZymoGenetics headquarters was 1201 Eastlake Avenue East. [2]