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Synthetic biology has long been used to describe an approach to biology that attempts to integrate different areas of research in order to create a more holistic understanding of life. More recently the term has been used in a different way, signaling a new area of research that combines science and engineering in order to design and build novel biological functions and systems. Biology studies the variety of life (clockwise from top-left) E. coli, tree fern, gazelle, Goliath beetle Biology (from Greek: βίος, bio, life; and λόγος, logos, knowledge), also referred to as the biological sciences, is the study of living organisms utilizing the scientific method. ...
Holism (from holon, a Greek word meaning entity) is the idea that the properties of a system cannot be determined or explained by the sum of its components alone. ...
Part of a scientific laboratory at the University of Cologne. ...
Engineering is the applied science of acquiring and applying knowledge to design, analysis, and/or construction of works for practical purposes. ...
 A light programmable biofilm made by the UT Austin / UCSF team during the 2004 Synthetic Biology competition ImageMetadata File history File links UT_HelloWorld. ...
ImageMetadata File history File links UT_HelloWorld. ...
History
In 1978 the Nobel Prize in Physiology or Medicine was awarded to Werner Arber, Daniel Nathans and Hamilton O. Smith for the discovery of restriction enzymes and their application to problems of molecular genetics. In an editorial comment in the journal Gene, Wacław Szybalski wrote: "The work on restriction nucleases not only permits us easily to construct recombinant DNA molecules and to analyze individual genes but also has led us into the new era of synthetic biology where not only existing genes are described and analyzed but also new gene arrangements can be constructed and evaluated" (Gene 1978, 4, p 181). A restriction enzyme (or restriction endonuclease) is an enzyme that cuts double-stranded DNA. The enzyme makes two incisions, one through each of the sugar-phosphate backbones (i. ...
Wacław Szybalski (born 1921 in Lwów, Poland - now Lviv, Ukraine) is a Professor of Oncology at the McArdle Laboratory for Cancer Research, University of Wisconsin-Madison Medical School. ...
The structure of part of a DNA double helix Deoxyribonucleic acid, or DNA, is a nucleic acid molecule that contains the genetic instructions used in the development and functioning of all known living organisms. ...
3D (left and center) and 2D (right) representations of the terpenoid molecule atisane. ...
Biology Biologists are interested in learning more about how natural living systems work. One simple, direct way to test our current understanding of a natural living system is to build an instance (or version) of the system in accordance with our current understanding of the system. Michael Elowitz's early work on the Repressilator [1] is one good example of such work. Elowitz had a model for how gene expression should work inside living cells. To test his model, he built a piece of DNA in accordance with his model, placed the DNA inside living cells, and watched what happened. Slight differences between observation and expectation highlight new science that may be well worth doing. Work of this sort often makes good use of mathematics to predict and study the dynamics of the biological system before experimentally constructing it. A wide variety of mathematical descriptions have been used with varying accuracy, including graph theory, Boolean networks, ordinary differential equations, stochastic differential equations, and Master equations (in order of increasing accuracy). Good examples include the work of Adam Arkin and Alexander van Oudenaarden. See also the PBS Nova special on artificial life. The repressilator is a novel synthetic genetic regulatory network reported in a paper[1] by Michael B. Elowitz and Stanislas Leibler. ...
A pictorial representation of a graph In mathematics and computer science, graph theory is the study of graphs, mathematical structures used to model pairwise relations between objects from a certain collection. ...
For use in mathematics, see Boolean algebra (structure). ...
In mathematics, an ordinary differential equation (or ODE) is a relation that contains functions of only one independent variable, and one or more of its derivatives with respect to that variable. ...
A stochastic differential equation (SDE) is a differential equation in which one or more of the terms is a stochastic process, thus resulting in a solution which is itself a stochastic process. ...
In physics, a master equation is a phenomenological first-order differential equation describing the time-evolution of the probability of a system to occupy each one of a discrete set of states: where Pk is the probability for the system to be in the state k, while the matrix is...
Chemistry Biological systems are physical systems that are made up of chemicals. Around 100 years ago, the science of chemistry went through a transition from studying natural chemicals to trying to design and build new chemicals. This transition led to the field of synthetic chemistry. In the same tradition, some aspects of synthetic biology can be viewed as an extension and application of synthetic chemistry to biology, and include work ranging from the creation of useful new biochemicals to studying the origins of life. Eric Kool's group at Stanford, Steven Benner's group at Florida, Carlos Bustamante's group at Berkeley, and Jack Szostak's group at Harvard are good examples of this tradition. For other uses, see Life (disambiguation), Lives (disambiguation) or Living (disambiguation), Living Things (disambiguation) Look up life, living in Wiktionary, the free dictionary. ...
A physical system is a system that is comprised of matter and energy. ...
For other uses, see Chemistry (disambiguation). ...
In chemistry, chemical synthesis is purposeful execution of chemical reactions in order to get a product, or several products. ...
“Stanford†redirects here. ...
The University of Florida (Florida, UFL, or UF) is a public land-grant, space-grant, research university located in Gainesville, Florida. ...
Sather tower (the Campanile) looking out over the San Francisco Bay and Mount Tamalpais. ...
Harvard University (incorporated as The President and Fellows of Harvard College) is a private university in Cambridge, Massachusetts, USA and a member of the Ivy League. ...
Engineering Engineers view biology as a technology. Synthetic Biology includes the broad redefinition and expansion of biotechnology, with the ultimate goals of being able to design and build engineered biological systems that process information, manipulate chemicals, fabricate materials and structures, produce energy, provide food, and maintain and enhance human health and our environment. A good example of these technologies include the work of Chris Voigt, who redesigned the Type III secretion system used by Salmonella typhimurium to secrete spider silk proteins, a strong elastic biomaterial, instead of its own natural infectious proteins. One aspect of Synthetic Biology which distinguishes it from conventional genetic engineering is a heavy emphasis on developing foundational technologies that make the engineering of biology easier and more reliable. Good examples of engineering in Synthetic Biology include the pioneering work of Tim Gardner and Jim Collins on an engineered genetic toggle switch, the Registry of Standard Biological Parts, and the International Genetically Engineered Machine competition (iGEM). Christopher Voigt is an American synthetic biologist, molecular biophysicist, and engineer. ...
Secretion is the process of segregating, elaborating, and releasing chemicals from a cell, or a secreted chemical substance or amount of substance. ...
Species S. enterica This article is about the bacteria. ...
Kenyans examining insect-resistant transgenic Bt corn. ...
James J. Collins, Ph. ...
Re-writing Re-writers are Synthetic Biologists who are interested in testing the idea that since natural biological systems are so complicated, we would be better off re-building the natural systems that we care about, from the ground up, in order to provide engineered surrogates that are easier to understand and interact with. Re-writers draw inspiration from refactoring, a process sometimes used to improve computer software. Drew Endy and his group have done some preliminary work on re-writing (e.g., Refactoring Bacteriophage T7). Oligonucleotides harvested from a photolithographic or inkjet manufactured DNA chip combined with DNA mismatch error-correction allows inexpensive large-scale changes of codons in genetic systems to improve gene expression or incorporate novel amino-acids (see George Church's laboratory's synthetic cell projects). As in the T7 example above, this favors a synthesis-from-scratch approach. Refactoring is the process of rewriting a computer program or other material to improve its structure or readability, while explicitly keeping its meaning or behavior. ...
Drew Endy is an Assistant Professor of Biological Engineering at MIT. With Tom Knight,Gerald Jay Sussman, and other folks at MIT he has worked to help make the engineering of biology easier. ...
A DNA microarray (also DNA chip or gene chip in common speech) is a piece of glass or plastic on which pieces of DNA have been affixed in a microscopic array. ...
RNA codons. ...
Gene expression, or simply expression, is the process by which the inheritable information which comprises a gene, such as the DNA sequence, is made manifest as a physical and biologically functional gene product, such as protein or RNA. Several steps in the gene expression process may be modulated, including the...
George Church is a Professor of Genetics at Harvard Medical School and Professor of Health Sciences & Technology at MIT. With Wally Gilbert he developed the first direct genomic sequencing method in 1984 and helped initiate the Human Genome Project while he was a Research Scientist at newly-formed Biogen Inc. ...
Human practices: Emerging social, ethical, legal challenges In addition to numerous bioscientific challenges, the vast potential of synthetic biology to play a formative role in contemporary human life raises new questions for bioethics, biosecurity, biosafety, health, energy and intellectual property. To date considerable focus has been given to the so-called dual-use challenge. For example, while the study of synthetic biology can lead to more efficient ways to produce cures (e.g. against malaria), it may also lead to synthesis or redesign of harmful pathogens (e.g., smallpox). In addition, scientists, funders, policymakers, ethicists and others have recognized challenges presented by a post 9/11 political milieu. A new range of potentially malicious actors and actions (i.e., terrorists/terrorism) must now be taken into account by those seeking to govern scientific domains; and the internet and other new media provide global access to technological know-how and scientific knowledge. Such global access cannot be addressed using existing models of nation-specific regulation. (New Scientist, November 12, 2005). Some detailed suggestions for licensing and monitoring the various phases of gene and genome synthesis are beginning to appear. There is also an ongoing, comprehensive, and open discussion of so-called “societal issues” online at OpenWetWare. New Scientist is a weekly international science magazine covering recent developments in science and technology for a general English-speaking audience. ...
In biology the genome of an organism is the whole hereditary information of an organism that is encoded in the DNA (or, for some viruses, RNA). ...
Synthesis (from the ancient Greek σÏν (with) and θεσις (placing), is commonly understood to be an integration of two or more pre-existing elements which results in a new creation. ...
Recently, efforts have been made to think beyond the “societal issues” model of ethics, politics, and science in relation to synthetic biology. This effort refuses the established convention of imagining society outside of and downstream of scientific practices, such that bioethics is assigned the task of limiting the negative impact of science on society. By contrast recent approaches focus on the integral and mutually formative relations among scientific and other human practices. These human practices approaches attempt to invent ongoing and regular forms of collaboration among synthetic biologists, ethicists, political analysts, funders, human scientists and civil society activists. To date collaborative work on “governance” or “society” or “ethics” in relation to synthetic biology has largely consisted either of intensive, short term meetings, aimed at producing guidelines or regulations, or standing committees whose purpose is limited to protocol review or rule enforcement. Such work has proven valuable in identifying the ways in which synthetic biology intensifies already-known challenges in rDNA technologies. However, these forms are not suited to identifying new challenges as they emerge. An example of efforts to develop ongoing collaboration is the Human Practices component of the Synthetic Biology Engineering Research Center (SynBERC), an NSF funded collaboration among a number of leading research universities. In Europe, the multi-partner project SYNBIOSAFE is investigating the biosafety, biosecurity and ethical aspects of synthetic biology.
Key enabling technologies There are several key enabling technologies that are critical to the growth of synthetic biology.
Sequencing Synthetic biologists make use of DNA sequencing in their work in several ways. First, large-scale genome sequencing efforts continue to provide a wealth of information on naturally occurring organisms. This information provides a rich substrate from which synthetic biologists can construct parts and devices. Second, synthetic biologists use sequencing to verify that they fabricated their engineered system as intended. Third, fast, cheap and reliable sequencing can also facilitate rapid detection and identification of synthetic systems and organisms. The term DNA sequencing encompasses biochemical methods for determining the order of the nucleotide bases, adenine, guanine, cytosine, and thymine, in a DNA oligonucleotide. ...
Fabrication A critical limitation in synthetic biology today is the time and effort expended during fabrication of engineered biological systems. As of spring 2007, synthesis of a 1000bp gene costs approximately $800 and 2 weeks to construct.[citation needed] To speed up the cycle of design, fabrication, testing and redesign, synthetic biology requires more rapid and reliable de novo DNA synthesis and assembly of fragments of DNA.
Modeling Models inform the design of engineered biological systems by allowing synthetic biologists to better predict system behavior prior to fabrication. Synthetic biology will benefit from better models of how biological molecules bind substrates and catalyze reactions, how DNA encodes the information needed to specify the cell and how multi-component integrated systems behave.
Measurement Precise and accurate quantitative measurements of biological systems are crucial to improving understanding of biology. Such measurements often help to elucidate how biological systems work and provide the basis for model construction and validation. Differences between predicted and measured system behavior can identify gaps in understanding and explain why synthetic systems don't always behave as intended. Technologies which allow many parallel and time-dependent measurements will be especially useful in synthetic biology. Microscopy and flow cytometry are examples of useful measurement technologies. Microscopy is any technique for producing visible images of structures or details too small to otherwise be seen by the human eye, using a microscope or other magnification tool. ...
Analysis of a marine sample of photosynthetic picoplankton by flow cytometry showing three different populations (Prochlorococcus, Synechococcus and picoeukaryotes) Flow cytometry is a technique for counting, examining and sorting microscopic particles suspended in a stream of fluid. ...
See also BioBrickâ„¢ is an adjective used to describe standard biological parts. ...
Biological engineering (also biosystems engineering and bioengineering) is a broad-based engineering discipline that deals with bio-molecular and molecular processes, product design, sustainability and analysis of biological systems. ...
Biopunk (a portmanteau word combining biotech and punk) is a term used to describe a science fiction genre that focuses on biotechnology and subversives. ...
iGEM Logo The International Genetically Engineered Machines (iGEM) competition is an annual, worldwide competition that involves undergraduate and graduate students in Synthetic Biology. ...
Synthetic Genomics is a company dedicated to using modified microorganisms to produce the alternative fuels ethanol and hydrogen. ...
Systems biology is a term used very widely in the biosciences, particularly from the year 2000 onwards, and in a variety of contexts. ...
External links The Berkeley Lab is perched on a hill overlooking the Berkeley central campus and San Francisco Bay. ...
University of Texas at Austin The University of Texas at Austin (full official name), often UT or Texas for short, is the flagship institution of the University of Texas System, the largest public university system in Texas, established in 1883. ...
Companies - Amyris Biotechnologies
- ATG:biosynthetics
- Blue Heron Biotechnology, Inc.
- CODA Genomics
- Codon Devices, Inc.
- DNA 2.0
- febit synbio gmbh
- GENEART
- LS9, Inc.
- Sloning Biotechnology
- Synthetic Genomics, Inc.
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