Abstract:
:Synthetic DNA-based data storage systems have received significant attention due to the promise of ultrahigh storage density and long-term stability. However, all known platforms suffer from high cost, read-write latency and error-rates that render them noncompetitive with modern storage devices. One means to avoid the above problems is using readily available native DNA. As the sequence content of native DNA is fixed, one can modify the topology instead to encode information. Here, we introduce DNA punch cards, a macromolecular storage mechanism in which data is written in the form of nicks at predetermined positions on the backbone of native double-stranded DNA. The platform accommodates parallel nicking on orthogonal DNA fragments and enzymatic toehold creation that enables single-bit random-access and in-memory computations. We use Pyrococcus furiosus Argonaute to punch files into the PCR products of Escherichia coli genomic DNA and accurately reconstruct the encoded data through high-throughput sequencing and read alignment.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Tabatabaei SK,Wang B,Athreya NBM,Enghiad B,Hernandez AG,Fields CJ,Leburton JP,Soloveichik D,Zhao H,Milenkovic Odoi
10.1038/s41467-020-15588-zsubject
Has Abstractpub_date
2020-04-08 00:00:00pages
1742issue
1issn
2041-1723pii
10.1038/s41467-020-15588-zjournal_volume
11pub_type
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