Proteins are the most abundant biological macromolecules and, based on their
three-dimensional shape, perform life-sustaining functions. The process by which a
protein assumes its folded shape remains an open question and has intrigued biologist…
Using the type I restriction-modification (R-M) system of plasmid EcoR124I, E. coli cells systematically distinguish their own DNA from foreign DNA. Self DNA is protected by
methylation within a specific recognition sequence, while foreign DNA,…