AIM To characterise the genomic DNA (gDNA) yield from urine and quality of derived methylation data generated from the widely used Illuminia Infinium MethylationEPIC (HM850K) platform and compare this with buffy coat samples. BACKGROUND DNA methylation is the most widely studied epigenetic mark and variations in DNA methylation profile have been implicated in diabetes which affects approximat...

Extraction of intact quality DNA from plant tissues, especially those rich in secondary metabolites, is often challenging. Literally, hundreds of different DNA isolation protocols from various plant species have been published over the last decades. Although many commercial DNA isolation kits are convenient and designed to be safe, their cost and availability cause limitations in small molecula...

Ribonucleotides are misincorporated into replicating DNA due to the similarity of deoxyribonucleotides and ribonucleotides, the high concentration of ribonucleotides in the nucleus and the imperfect accuracy of replicative DNA polymerases in choosing the base with the correct sugar. Embedded ribonucleotides change certain properties of the DNA and can interfere with normal DNA transactions. The...

Besides single-nucleotide variants in the human genome, large-scale genomic variants, such as copy number variations (CNVs), are being increasingly discovered as a genetic source of human diversity and the pathogenic factors of diseases. Recent experimental findings have shed light on the links between different genome architectures and CNV mutagenesis. In this review, we summarize various geno...

With the rapid development of molecular biology and the life sciences, magnetic extraction is a simple, automatic, and highly efficient method for separating biological molecules, performing immunoassays, and other applications. Human blood is an ideal source of human genomic DNA. Extracting genomic DNA by traditional methods is time-consuming, and phenol and chloroform are toxic reagents that ...

The Agilent DNA Extraction Kit (p/n 200600) was compared to standard methods such as beadbeating and enzyme treatment for preparation of genomic DNA from the prokaryote Listeria monocytogenes. Using this extraction kit, with modifications, to lyse the bacteria and isolate high molecular weight DNA reproducibly yielded high quality DNA suitable for further applications such as polymerase chain r...

Transposons are genetic elements that change their intracellular genomic position by transposition and spread horizontally between bacteria when located on plasmids. It was recently discovered from fully heterologous DNA also occurs in the course of natural transformation. Here, we characterize molecular details constraints this process using replicative transposon Tn 1 naturally competent bact...