Systems Metabolic Engineering is changing the way microbial cell factories are designed and optimized for industrial production. Integrating systems biology and biotechnology with new concepts from synthetic biology enables the global analysis and engineering of microorganisms and bioprocesses at super efficiency and versatility otherwise not accessible. Without doubt, systems metabolic engineering is a major driver towards bio-based production of chemicals, materials and fuels from renewables and thus one of the core technologies of global green growth. In this book, Christoph Wittmann and Sang-Yup Lee have assembled the world leaders on systems metabolic engineering and cover the full story - from genomes and networks via discovery and design to industrial implementation practises. This book is a comprehensive resource for students and researchers from academia and industry interested in systems metabolic engineering. It provides us with the fundaments to targeted engineering of microbial cells for sustainable bio-production and stimulates those who are interested to enter this exiting research field.

Trypanosomes are unicellular protozoa of ancient evolutionary origin that are responsible for several tropical diseases, such as African sleeping sickness. Over the last few decades, research in trypanosome biology has revealed many unique and fascinating features, many of which have helped to establish new paradigms in other biological systems. This applies in particular to studies in gene expression and regulation, which benefit enormously from the trypanosome genome projects and from the new genome-wide approaches recently introduced in trypanosome research. This volume covers the most important aspects of biosynthesis, processing, and functions of RNA in trypanosomes, ranging from transcription to RNA editing, mRNA splicing/translation/turnover, processing of transfer and ribosomal RNA, RNA interference, and current transcriptome-wide analyses. Recent progress in RNA-focused research in trypanosomatids promises to yield novel insights into trypanosome-specific features, as well as to reveal in the process new potential therapeutic strategies for combating these parasitic diseases.

The rapidly developing field of systems biology is influencing many aspects of biological research and is expected to transform biomedicine. Some emerging offshoots and specialized branches in systems biology are receiving particular attention and are becoming highly active areas of research. This collection of invited reviews describes some of the latest cutting-edge experimental and computational advances in these emerging sub-fields of systems biology. In particular, this collection focuses on the study of mammalian embryonic stem cells; new technologies involving mass-spectrometry proteomics; single cell measurements; methods for modeling complex stochastic systems; network-based classification algorithms; and the revolutionary emerging field of systems pharmacology.

Long non-coding RNAs (lncRNAs), tentatively defined as ncRNAs of more than two hundred nucleotides in length, are characterized by the complexity and diversity of their sequences and mechanisms of action. Based on genome-wide studies, more than 3,300 of them exist, but to date only the limited number of functional lncRNAs have been identified and characterized. Nonetheless, lncRNAs have emerged as key molecules involved in the control of transcriptional and posttranscriptional gene regulatory pathways. They take part in the recruitment of chromatin modifying complexes and regulate splicing, localization, stability and translation of the target mRNAs. This book provides an overview of the rapidly advancing field of long ncRNAs, describing the epigenetic and non-epigenetic mechanisms by which they regulate various biological functions in model systems, from yeast to mammals. The role of ncRNAs in sex chromosome dosage compensation in flies and mammals is described, as well as their role in centromere and telomere biology. Long non-coding RNAs involved in environmental stress response and development are presented and their mechanisms of action discussed.

This book represents a selected group of manuscripts from lecturers participating in the NATO/Gulbenkian Foundation sponsored course on Somatic Cell Genetics held May 31 to June 12, 1981 in the Hotel Montechoro in the Algarve of Portugal. The text will provide those students who could not attend the meeting with a current survey of important advances in the field of Somatic Cell Genet- ics. It is not possible to recapture here all the lectures, semi- nar discussions, student and faculty interactions, the ambience of the Algarve and the time devoted exclusively to scientific discus- sion. In summary, I feel that this book is good, but the scien- tists, the students, and the entire course were better. Somatic Cell Genetics is a broad subject area and one which has contributed significantly to Our understanding of the mammalian cell. Drs. Caskey, Buttin, Siminovitch, and Lechner elected in designing the course to focus on the results obtained with cultured animal cells.

In this volume of Recent Advances in Phytochmistry you will find a record of the pioneering attempts of plant biochemists and molecular biologists to modify the patterns of secondary metabolism in plants, as presented at the 33rd annual meeting of the Phytochemical Society of North America, in Asilomar, California, on June 27 -July I, 1993. The studies described here represent a marriage of the newest of technologies with one of the oldest human activities, exploitation of plant chemistry. They also represent the beginning of a new era of phytochemical research, an era that will undoubtedly begin to provide answers to some of the long-standing questions that have absorbed plant biochemists for the past century. There is, for instance, a common deflating experience to which every worker in the area of plant secondary metabolism can probably relate. After hearing about the latest research findings regarding some aspect of remarkable compound "X", someone in the audience finally directs the inevitable question at the hapless speaker. "Tell me, is anything known as to the biological role of compound "X" in the plant?" The answer, in most cases, must be "essentially nothing"! This is a frustrating scenario for both the speaker and the audience, since the very fact that a complex biosynthetic pathway remains encoded in a plant genome points to an associated selective advantage. The problem is that establishing the nature and scale of that advantage is a very complex task.

The study of the insulin-like growth factor (IGF) family has become an exciting area of investigation. Initially, this family consisted of ligands (insulin, IGF-I and IGF-m and receptors (the insulin receptor, the type I or IGF-I receptor and the type II or IGF-IYM-6-P receptor). Subsequently, it was discovered that six specific binding proteips (lGFBPs 1-6) playa major role in the actions of this growth factor family. In addition, there are now more potential receptors when one considers the possible roles of the insulin-receptor related receptor (IRR) and hybrid receptor dimers composed of insulin and IGF-I receptor (half-receptors). Another important aspect of this area of research is the realization that the IGFs are not only essential for normal growth and development but, in addition play an important role in the normal specialized function(s) of all tissues of the body, including the nervous system, skeleton, reproductive system, kidney, and the immune system, to name but a few. The development of recombi tant human IGF-I for clinical testing has been a major breakthrough for investigators. Potential uses include wound healing, reversal of catabolic states, diabetes, bone remodeling, recovery from acute renal failure and many others. will determine both its use and its potential hazards.

In Gene Regulatory Sequences and Human Disease, the Editor will introduce the different technological advances that led to this breakthrough. In addition, several examples will be provided of nucleotide variants in noncoding sequences that have been shown to be associated with various human diseases.

The conference entitled "The Translational Apparatus" was held in Berlin from October 31 to November 5, 1992, in honorem et memoriam of H. G. Wittmann. The presentations of the rewarding, enjoyable and scientifically exciting week in Berlin were a fitting appreciation of this great man, and all participants and speakers contributed to the success of the meeting. The second reason for holding the Berlin meeting was to convene a group of scientists for a state-of-the-art presentation on ribosomes and related subjects; the outcome is this book. We have broadened the spectrum of topics to cover activities preceding and following pure ribosomal functions, such as "Synthetases" and "Protein Sorting", respectively, and we took the liberty of ordering the contributions in a way which does not always reflect the order of speakers. We are grateful to the authors who patiently tolerated our organization and our regulations for manuscripts. K.H. Nierhaus F. Franceschi A.R. Subramanian v CONTENTS I. tRNA and Aminoaeyl-tRNA Synthetases 1. The Crystal Structure of SeryI-tRNA Synthetase and its Complexes with A TP and tRNASer...1 S. Cusack, C. Berthet-Colominas, V. Biou, F. Borel, M. Fujinaga, M. Hartlein, I.

The purpose of this and future volumes of the Handbook of Genetics is to bring together a collection of relatively short, authoritative essays or annotated compilations of data on topics of~ignificance to geneticists. Many of the essays will deal with various aspects of the biology of certain species selected because they are favorite subjects for genetic investigation in nature or the laboratory. Often there will be an encyclopedic amount o( information available on such a species, with new papers appearing daily. Most of these will be written for specialists in a jargon that is bewildering to a novice and sometimes even to a veteran geneticist working with evolu tionarily distant organisms. For such readers what is needed is a written introduction to the morphology, life cycle, reproductive behavior, and cul ture methods for the species in question. What are its particular ad vantages (and disadvantages) for genetic study, and what have we learned from it? Where are the classic papers, the key bibliographies, and how or mutant strains? A list giving the sym does one get stocks of wild type bolism for unknown mutations is helpful, but it need include only those mutants that have been retained and are thus available for future studies. Other data, such as up-to-date genetic and cytological maps, listings of break points for chromosomal aberrations, mitotic karyotypes, and hap loid DNA values, will be included when available.

These are exciting days in biology; chromosome such functional attributes of chromosomes as research is no exception. Twenty years ago when replication, dosage compensation and cellular Caspersson and coworkers showed that meta response to DNA lesions. It is only recently that a phase chromosomes are structurally not homo molecular view of the meiotic cell division is geneous through their length, a new world was beginning to emerge: chapter ten refers to human in the offing. Application of various molecular meiosis and the next to molecular events in techniques in chromosome research has subse meiotic prophase in the baker's yeast. Another quently narrowed down the gap between the chapter is on aneuploidy in man and the Djungarian levels of microscopic and molecular understand hamster. The role of chromosome rearrange ing of chromosome organization. While complex ments and oncogenes in malignancy and the ities of older questions of chromosome/ parallelism between the neoplastic and phy chromatin organization are being understood, logenetic chromosomal alterations are discussed newer dimensions and perspectives have been in the next two chapters. Recent introduction of gained with respect to their structure and func potentially useful methods of chromosome isola tions. Even more, novel chromosome techniques tion by flow cytometry, and mapping of structural have become an integral component of clinical ly and functionally distinct domains on metaphase and molecular genetic methodologies."

Velo-Cardio-Facial Syndrome (VCFS) is a genetic disorder caused by the deletion of part of chromosome 22. It occurs in approximately one in 4000 births and there are now more than 100 physical phenotypic features reported. VCFS affects every major system in the body and this 2005 book was the first to describe its full clinical impact. It has been authored by leading international VCFS clinicians/researchers. The focus is on clinical issues with chapters devoted to psychiatric disorders (with the sufferer showing very high levels of schizophrenia), neuroimaging, speech and language disorders, as well as cardiac, ENT, gastrointestinal, ophthalmic and urological manifestations. Molecular genetics, immunodeficiency and genetic counselling are also covered, and practical approaches to diagnosis and treatment described. As VCFS is seen as a paradigm for other microdeletion disorders, this book will not just appeal to clinicians seeing VCFS patients, but also to those interested in other genetic disorders.

One outstanding question in biology is the problem of devel opment: how the genetic instructions encoded in the DNA become expressed in the morphological, physiological, and behavioral features of multicellular organisms, through an ordered sequence of events that extend from the first cell division of the zygote to the adult stage and eventual death. The problem is how a one dimensional array of instructions is transformed into a four dimensional entity, the organism that exists in space and time. Understanding this transformation is, nevertheless, necessary for mastering the process of evolution. One hundred and twenty-five years after The Origin of Species, we have gained some understanding of evolution at the genetic level. Genetic information is stored in the linear sequence of nucleotides in the DNA. Gene mutations, chromosomal reorganiza tions, and a host of related processes introduce variation in the sequence and the amount of DNA. The fate of these variations is determined by interactions within the genome and with the outside environment that are largely understood. We have recently gained a glimpse of how the genome of eukaryotes is organized and will learn much more about it in the future, now that we have the research tools for it."

The newest installment in this superb series presents descriptions of the latest DNA recombinants molecule technology. The text combines reports on basic research in genetics with discussions of specific new industrial applications (as well as refinements of older ones) that are likely to prove highly profitable in the years to come.

Advances in genetics, molecular biology and gene delivery technologies in recent years have led to new gene therapy strategies for treatment of a variety of diseases. This book gives a comprehensive overview of the present status and future directions of gene delivery systems and therapeutic strategies for the clinical application of gene therapy in cancer, cardiovascular and central nervous system diseases. Stem cell-based therapies and gene expression regulatory systems as novel platform technologies for various gene therapy applications are also discussed. Leading experts give excellent overviews of basic molecular aspects and clinical applications in this new emerging biomedical field.

Recent developments in stem cell biology have opened new directions in cell therapy. This book provides the state-of-the-art developments in using biomaterials as artificial niches for engineering stem cells, both for the purpose of better understanding their biology under 3D biomimetic conditions as well as for developing new strategies for efficient long term maintenance and directed differentiation of stem cells into various therapeutic lineages. Animal and human stem cells of both embryonic and adult origin are discussed with applications ranging from nerve regeneration, orthopedics, cardiovascular therapy, blood cell generation and cancer therapy. Both synthetic and natural biomaterials are reviewed with emphasis on how material-stem cell interactions direct specific signaling pathways and ultimately modulate the cell fate. This book is valuable for biomaterial scientists, tissue engineers, clinicians as well as stem cell biologists involved in basic research and applications of adult and embryonic stem cells.

Genetic testing has become commonplace, and clinicians are frequently able to use knowledge of an individual's specific genetic differences to guide their course of action. Molecular Genetics and Personalized Medicine highlights developments that have been made in the field of molecular genetics and how they have been applied clinically. It will serve as a useful reference for physicians hoping to better understand the role of molecular medicine in clinical practice. In addition, it should also prove to be an invaluable resource for the basic scientist that wants to better understand how advances in the laboratory are being moved from the bench to the bedside. All chapters are written by experts in their fields and include the most up to date medical information. The authors simplify complex genetic concepts and focus on practical patient related issues. The book will be of great value to pathologists, hematologists/oncologists, clinical geneticists, high-risk obstetricians, general practitioners, and physicians in all other medical specialties who utilize genetic testing to direct therapy.

It is now widely accepted that cells have the ability to initiate a program of gene-directed death, a process called "apoptosis" which may also be used as an innovative strategy for therapeutic intervention in cancer therapy. Experts in this area report on the regulation and control of apoptosis in hormone dependent (neoplastic) tissue and the possibility to exploit active cell death for therapeutic application.

Transposon tagging can work. Even though most of our understand ing about the factors that contribute to a successful tagging experiment has been accumulated from a limited number of experiments using different transposable elements in different genetic backgrounds, it is still possible to draw some conclusions regarding the best experimental strategies for gene tagging. In our experience, Spm has proved to be a good element for transposon tagging. The frequency of recovering mutable alleles in duced by Spm is not significantly different from that for Ac-Ds or for Mu 6 (summarized in Ref. 22) and varies from about 10- to 10=zr: -8pm has the unique advantage, however, in that all of the members of thiSfumily that have been examined thus far are homologous to each other at the DNA level. Therefore, by combining molecular analysis with genetic segre gation, it is possible to identify and isolate alleles that are due to insertions of either autonomous or nonautonomous Spm elements. There are definite steps one can take to increase the chances of de tecting a transposition into the gene of interest. The most important step is to select a genetic background in which the desired phenotype will be easy to screen. If the phenotype is not likely to be mutable, then tester lines should be constructed so as to contain flanking markers that can aid in subsequent segregation analyses."

In numerous conversations with our colleagues from India, it was suggested that we help to institute a series of symposia in India similar in nature to those that have been conducted by our Latin American colleagues for more than 10 years. We were fortunate to have with us in Oak Ridge Dr. Niyogi and Dr. Mitra from Indian universities. Their close ties with the Bose Institute in Calcutta and the resultant correspondence with the Institute Director, Dr. S. M. Sircar, provided the stimulus for organization of this first Indian symposium, which was held in Calcutta. Under the direction of Dr. Sircar, Dr. B. B. Biswas did an outstandingjob of organizing this conference. Financial support was arranged through Dr. R. R. Ronkin of the United States National Science Foundation, who smoothed the way for the use of PL 480 funds which were approved by the Indian Government for the organization and running of this most valuable symposium. The many Indian scientists who contributed papers and enthusiastically and vigorously entered into the discussions demonstrated the strength of modern science in India. The topic, Control of Transcription, is a timely one, and considerable activity in this area is going on all over the world. The success of this symposium speaks well for the future of these Indian conferences and workshops being planned for the next few years. Again, the worldwide "community of science" is clearly manifested by the close cooperation we have observed in this fruitful and successful symposium.

Many modern geneticists attempt to elucidate the molecular basis of phenotype by utilizing a battery of techniques derived from physical chemistry on subcellular components isolated from various species of organisms. Volume 5 of the Handbook of Genetics provides explanations of the advantages and shortcomings of some of these revolutionary tech niques, and the nonspecialist is alerted to key research papers, reviews, and reference works. Much of the text deals with the structure and func tioning of the molecules bearing genetic information which reside in the nucleus and with the processing of this information by the ribosomes resid ing in the cytoplasm of eukaryotic cells. The mitochondria, which also live in the cytoplasm of the cells of all eukaryotes, now appear to be separate little creatures. These, as Lynn Margulis pointed out in Volume 1, are the colonial posterity of migrant prokaryotes, probably primitive bacteria that swam into the ancestral precursors of all eukaryotic cells and remained as symbionts. They have maintained themselves and their ways ever since, replicating their own DNA and transcribing an RNA quite different from that of their hosts. In a similar manner, the chloroplasts in all plants are self-replicating organelles presumably derived from the blue-green algae, with their own nucleic acids and ribosomes. Four chapters are devoted to the nucleic acids and the ribosomal components of both classes of these semi-independent lodgers. Finally, data from various sources on genetic variants of enzymes are tabulated for ready reference, and an evaluation of this information is attempted."

In recent years, epigenetic approaches to existing scientific problems have offered many new and exciting perspectives. This book focuses on epigenetic approaches to study asthma and allergy research. The authors briefly review cellular factors, immune signaling, and inflammatory pathways in allergy and asthma, as well as genetic influences in the pathogenesis of atopic disorders. Diseases that have been clearly linked to an epigenetic dysregulation will be discussed, as well as the role of epigenetics in the origin of complex diseases. The authors will examine the impact of environment factors in the predisposition to atopic disorders, and they will also describe the major unanswered questions and future perspectives of an exciting new field that studies allergic diseases from the epigenetic point of view.