Cited by 243Gene Regulatory Network AnalysisCRISPR and Genetic EngineeringDNA and Biological Computing

Permanent genetic memory with >1-byte capacity

Open access
Yang, Lei, Nielsen, Alec A K, Fernandez-Rodriguez, Jesus, McClune, Conor J, Laub, Michael T, Lu, Timothy K, Voigt, Christopher A·2014·Nature Methods

Abstract

Genetic memory enables the recording of information in the DNA of living cells. Memory can record a transient environmental signal or cell state that is then recalled at a later time. Permanent memory is implemented using irreversible recombinases that invert the orientation of a unit of DNA, corresponding to the [0,1] state of a bit. To expand the memory capacity, we have applied bioinformatics to identify 34 phage integrases (and their cognate attB and attP recognition sites), from which we build 11 memory switches that are perfectly orthogonal to each other and the FimE and HbiF bacterial invertases. Using these switches, a memory array is constructed in Escherichia coli that can record 1.375 bytes of information. It is demonstrated that the recombinases can be layered and used to permanently record the transient state of a transcriptional logic gate.

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  • Preservation of DNA digital archives can be implemented using not only in vitro substrates but also in vivo approaches.

    “It is also important to mention that the preservation of DNA digital archives can be implemented using not only in vitro substrates but also in vivo approaches.150−153”

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Authors
Yang, L., Nielsen, A. A. K., Fernandez-Rodriguez, J., McClune, C. J., Laub, M. T., Lu, T. K., & Voigt, C. A.
Affiliations
Massachusetts Institute of Technology (US)
Corresponding author
Voigt, Christopher A
Venue
Nature Methods
Published
2014-10-26
Volume
11
Issue
12
Pages
1261-1266
ISSN
  • 1548-7091 (ISSN-L)
  • 1548-7105
OpenAlex
W1586524232
Cited by
243
References
49
Citations by year
2026: 16 · 2025: 20 · 2024: 22 · 2023: 19 · 2022: 24 · 2021: 16 · 2020: 20 · 2019: 22 · 2018: 21 · 2017: 23 · 2016: 27 · 2015: 13
FWCI
8.56
Type
journal article
Language
en
Open access
Locations
  • Nature Methods (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
  • PMC
Funders
National Institute of General Medical Sciences (P50GM098792, R01GM095765, GM095765, T32GM007287)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Biological Computing
Keywords
ancestral memory, phage integrase, memory arrays, Escherichia coli
MeSH terms
Bacteriophages, DNA-Binding Proteins, DNA, Bacterial, Escherichia coli, Memory, Recombination, Genetic, Gene Expression Regulation, Bacterial, Computational Biology, Integrases, Escherichia coli Proteins, Recombinases

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