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Cited by 162

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Efforts toward the Expansion of the Genetic Alphabet: Information Storage and Replication with Unnatural Hydrophobic Base Pairs

Ogawa, Anthony K., Wu, Yiqin, McMinn, Dustin L., Liu, Jianquan, Schultz, Peter G., Romesberg, Floyd E.·2000·Journal of the American Chemical Society

Abstract

The faithful recognition of the interstrand hydrogen bonds between complementary nucleobases forms the foundation of the genetic code. The ability to replicate DNA containing a stable third base pair would allow for an expansion of the information content of DNA by supplementing the existing two base pairs of the genetic alphabet with a third. We report the optimization of unnatural nucleobases whose pairing in duplex DNA is based on interbase hydrophobic interactions. We show that the stability and selectivity of such unnatural base pairs may be comparable to, or even exceed, that of native pairs. We also demonstrate that several unnatural base pairs are incorporated into DNA by Klenow fragment of Escherichia coli DNA polymerase I with an efficiency equivalent to that of native DNA synthesis. Moreover, the unnatural bases are orthogonal to the native bases, with correct pairing being favored by at least an order of magnitude relative to mispairing.

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Metadata

Authors
Ogawa, A. K., Wu, Y., McMinn, D. L., Liu, J., Schultz, P. G., & Romesberg, F. E.
Venue
Journal of the American Chemical Society
Published
2000-03-24
Volume
122
Issue
14
Pages
3274-3287
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2016066488
Cited by
162
References
1
FWCI
5.29
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Efforts toward the Expansion of the Genetic Alphabet: Information Storage and Replication with Unnatural Hydrophobic Base Pairs. https://app.cochat.ai/papers/10.1021/ja9940064
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Ogawa, A. K., Wu, Y., McMinn, D. L., Liu, J., Schultz, P. G., & Romesberg, F. E. (2000). Efforts toward the Expansion of the Genetic Alphabet: Information Storage and Replication with Unnatural Hydrophobic Base Pairs. Journal of the American Chemical Society. https://doi.org/10.1021/ja9940064

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