Biotech Updates

Genomic Tape Recorders Developed through E. coli

November 19, 2014

Researchers from Michigan Institute of Technology developed genomic tape recorders using the genome  of Escherichia coli bacterium. This technology can able to long-term store, erase and easily retrieve memories from chemical exposure or other events in the DNA.

The memory storage was programmed through genetically engineering E. coli to produce a recombinase enzyme. This enzyme has the ability to insert DNA or any other specific sequence of the DNA into a target site. Production of DNA in this process is only activated in the presence of predetermined molecule or any other type of input such as light. This exposure has been stored throughout the lifetime of the bacterial population and can be passed on from generation to generation.

The information stored can also be retrieved through sequencing the genome or targeting a sequence to alter the gene. It can also erase the information by the stimulation of cells incorporated at different pieces in the DNA. This technology is essential in environmental and medical monitoring.

Read more the story at: http://newsoffice.mit.edu/2014/bacteria-storage-device-memory-1113.