Key to Invitrogen's Gateway technology is the "entry clone," which contains a fragment of interest in a recombinase-ready plasmid. Researchers can quickly and efficiently move between expression ...

Johns Hopkins University School of Medicine alumnus and former faculty member Hamilton O. Smith, whose 1978 Nobel Prize-winning discovery of restriction enzymes revolutionized genetic engineering, ...

Enzymes that cut DNA at specific sites are called endonucleases; these enzymes play many roles in genomic replication, fidelity, and defense. The initial discovery of restriction endonucleases in the ...