New letters for life's alphabet

A semi-synthetic organism with an expanded genetic alphabet

(2014) Denis A. Malyshev et al.   NATURE

Genomically Recoded Organisms Expand Biological Functions

(2013) M. J. Lajoie et al.   SCIENCE

Efficient and sequence-independent replication of DNA containing a third base pair establishes a functional six-letter genetic alphabet

(2012) Denis A. Malyshev et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Amplification, Mutation, and Sequencing of a Six-Letter Synthetic Genetic System

(2011) Zunyi Yang et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Highly specific unnatural base pair systems as a third base pair for PCR amplification

(2011) Rie Yamashige et al.   NUCLEIC ACIDS RESEARCH

Optimization of an Unnatural Base Pair toward Natural-Like Replication

(2009) Young Jun Seo et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY