The ability to introduce non-canonical amino acids in vivo has greatly expanded the repertoire of accessible proteins for basic research and biotechnological application. Here, the different methods and strategies to incorporate new or modified amino acids are explained in detail, including a lot of practical advice for first-time users of this powerful technique. Novel applications in protein biochemistry, genomics, biotechnology and biomedicine made possible by the expansion of the genetic code are discussed and numerous examples are given. Essential reading for all molecular life scientists who want to stay ahead in their research.

The purpose of this book is to bring to interested readers (professionals and laypersons alike) an appreciation and a basic understanding of what the genetic code is and why it has come to revolutionize thinking about living systems as a whole. The consequences of this revolution in molecular biology are so vast as to be almost incomprehensible. It seems important in a democratic society to have a citizenry well informed about the crucial issues of the day, such as genetic engineering and molecular medicine, which impact the social order and the ethos of society in such a profound way.This book discusses concisely the genetic code ? what it is and how it provides the key to molecular biology. The structures of DNA (as revealed by Watson and Crick) and of the various forms of RNA are described in some detail, and it is shown how these structures are marvellously adapted to the twin problems of inheritance of traits and faithful development of individual organisms. In this latter respect, the role of proteins as the ?molecules of life? is described and the central dogma of molecular biology (information flows from DNA to RNA to protein) elaborated. In addition, theories of the origin and development of the universal genetic code are reviewed briefly, and a perspective concerning the impact of molecular biology on the social ethos is presented.

The purpose of this book is to bring to interested readers (professionals and laypersons alike) an appreciation and a basic understanding of what the genetic code is and why it has come to revolutionize thinking about living systems as a whole. The consequences of this revolution in molecular biology are so vast as to be almost incomprehensible. It seems important in a democratic society to have a citizenry well informed about the crucial issues of the day, such as genetic engineering and molecular medicine, which impact the social order and the ethos of society in such a profound way.This book discusses concisely the genetic code — what it is and how it provides the key to molecular biology. The structures of DNA (as revealed by Watson and Crick) and of the various forms of RNA are described in some detail, and it is shown how these structures are marvellously adapted to the twin problems of inheritance of traits and faithful development of individual organisms. In this latter respect, the role of proteins as the “molecules of life” is described and the central dogma of molecular biology (information flows from DNA to RNA to protein) elaborated. In addition, theories of the origin and development of the universal genetic code are reviewed briefly, and a perspective concerning the impact of molecular biology on the social ethos is presented.

This book is a printed edition of the Special Issue "The Origin and Evolution of the Genetic Code: 100th Anniversary Year of the Birth of Francis Crick" that was published in Life

Looks at cells as life's building blocks, focusing on DNA and genetic engineering, discussing DNA as a cell's instruction manual, explaining how DNA is put together, and exploring some of the controversies surrounding genetic engineering and gene therapy.

Dear Colleagues, Synthetic biology is a broad and emerging discipline that capitalizes on recent advances in molecular biology, genetics, protein and RNA engineering and omics technologies. These technologies have transformed our ability to reveal the biology of the cell and the molecular basis of disease. This Special Issue on “Synthetic RNA and DNA Programming” features original research articles and reviews, highlighting novel aspects of basic molecular biology and the molecular mechanisms of disease that were uncovered by the application and development of novel synthetic biology-driven approaches.

Everyone has heard of the story of DNA as the story of Watson and Crick and Rosalind Franklin, but knowing the structure of DNA was only a part of a greater struggle to understand life's secrets. Life's Greatest Secret is the story of the discovery and cracking of the genetic code, the thing that ultimately enables a spiraling molecule to give rise to the life that exists all around us. This great scientific breakthrough has had farreaching consequences for how we understand ourselves and our place in the natural world, and for how we might take control of our (and life's) future. Life's Greatest Secret mixes remarkable insights, theoretical dead-ends, and ingenious experiments with the swift pace of a thriller. From New York to Paris, Cambridge, Massachusetts, to Cambridge, England, and London to Moscow, the greatest discovery of twentieth-century biology was truly a global feat. Biologist and historian of science Matthew Cobb gives the full and rich account of the cooperation and competition between the eccentric characters -- mathematicians, physicists, information theorists, and biologists -- who contributed to this revolutionary new science. And, while every new discovery was a leap forward for science, Cobb shows how every new answer inevitably led to new questions that were at least as difficult to answer: just ask anyone who had hoped that the successful completion of the Human Genome Project was going to truly yield the book of life, or that a better understanding of epigenetics or "junk DNA" was going to be the final piece of the puzzle. But the setbacks and unexpected discoveries are what make the science exciting, and it is Matthew Cobb's telling that makes them worth reading. This is a riveting story of humans exploring what it is that makes us human and how the world works, and it is essential reading for anyone who'd like to explore those questions for themselves.

"The book...is, in fact, a short text on the many practical problems...associated with translating the explosion in basic biotechnological research into the next Green Revolution," explains Economic Botany. The book is "a concise and accurate narrative, that also manages to be interesting and personal...a splendid little book." Biotechnology states, "Because of the clarity with which it is written, this thin volume makes a major contribution to improving public understanding of genetic engineering's potential for enlarging the world's food supply...and can be profitably read by practically anyone interested in application of molecular biology to improvement of productivity in agriculture."

Several projects focused on expanding the genetic code of Escherichia coli to include amino acids beyond the common twenty are described. These include the identification of extended codons, orthogonal pairs, and the engineering of amino acid metabolic pathways in E. coli . To incorporate multiple unnatural amino acids at distinct sites in a polypeptide, multiple noncoding codons are required. To this end efficiently-suppressed 4- and 5-base codons were identified using a selection strategy. To make use of these extended codons, three orthogonal aminoacyl-tRNA synthetase/suppressor tRNA pairs were engineered from archaebacteria. These systems do not cross-react with their E. coli homologs, but efficiently suppress UAG, AGGA, or UGA codons. Using a combination of saturation mutagenesis and genetic selection, several variants of the Pyrococcus horikoshii lysyl-tRNA synthetase were identified that permit the genetic encoding of homoglutamine in response to the codon AGGA in E. coli . In addition to adding new components to the translational machinery of E. coli , we have also added a biosynthetic pathways for p-aminophenylalanine providing the first example of an autonomous 21-amino acid organism that can biosynthesize an unnatural amino acid and incorporate it into protein with no media supplement. Finally, in an effort to incorporate [alpha]-hydroxy acids genetically into proteins we have identified strains deficient in their biotransformation to [alpha]-amino acids in E. coli . In combination with extended codons and orthogonal pairs, these strains set the stage for the evolution of a system that genetically encodes polyesters. The work described here not only allows us to generate proteins and possibly entire organisms with novel properties not restricted by the common twenty amino acids, it also provides an opportunity to explore basic mechanisms of translation.

A Best Book of 2021 by Bloomberg BusinessWeek, Time, and The Washington Post The bestselling author of Leonardo da Vinci and Steve Jobs returns with a “compelling” (The Washington Post) account of how Nobel Prize winner Jennifer Doudna and her colleagues launched a revolution that will allow us to cure diseases, fend off viruses, and have healthier babies. When Jennifer Doudna was in sixth grade, she came home one day to find that her dad had left a paperback titled The Double Helix on her bed. She put it aside, thinking it was one of those detective tales she loved. When she read it on a rainy Saturday, she discovered she was right, in a way. As she sped through the pages, she became enthralled by the intense drama behind the competition to discover the code of life. Even though her high school counselor told her girls didn’t become scientists, she decided she would. Driven by a passion to understand how nature works and to turn discoveries into inventions, she would help to make what the book’s author, James Watson, told her was the most important biological advance since his codiscovery of the structure of DNA. She and her collaborators turned a curiosity of nature into an invention that will transform the human race: an easy-to-use tool that can edit DNA. Known as CRISPR, it opened a brave new world of medical miracles and moral questions. The development of CRISPR and the race to create vaccines for coronavirus will hasten our transition to the next great innovation revolution. The past half-century has been a digital age, based on the microchip, computer, and internet. Now we are entering a life-science revolution. Children who study digital coding will be joined by those who study genetic code. Should we use our new evolution-hacking powers to make us less susceptible to viruses? What a wonderful boon that would be! And what about preventing depression? Hmmm…Should we allow parents, if they can afford it, to enhance the height or muscles or IQ of their kids? After helping to discover CRISPR, Doudna became a leader in wrestling with these moral issues and, with her collaborator Emmanuelle Charpentier, won the Nobel Prize in 2020. Her story is an “enthralling detective story” (Oprah Daily) that involves the most profound wonders of nature, from the origins of life to the future of our species.