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The mRNA Metabolism in Human Disease
The eukaryotic gene expression pathway involves a number of interlinked steps, with messenger RNA (mRNA) being the key intermediate. The precursor mRNA is transcribed from DNA, processed by removal of introns and addition of the cap structure and the poly(A) tail. The mature mRNA is then exported to the cytoplasm where it is translated into protein and finally degraded. In this process, mRNA is associated with RNA-binding proteins forming ribonucleoprotein complexes, whose protein content evolves throughout the lifetime of the mRNA. While the complexity of eukaryotic gene expression allows the production of proteins to be controlled at many levels, it also makes the process vulnerable to err...
Alternative Splicing in Brain Function
Functional and structural intricacies of biological systems emerge from the complex nature of the genome. A key aspect of genome complexity can be attributed to the process of alternative splicing of precursor mRNA (or pre-mRNA), during which introns are removed and exons are selectively spliced together. This highly regulated process generates different mature mRNA transcripts from a single gene and is widespread throughout the eukaryotic evolution. The majority of the genes expressed in the mammalian central nervous system undergo extensive alternative splicing. Some genes can generate more than a thousand isoforms resulting in diverse proteoforms that can differ in their function, binding...
A Great Weekend in Lisbon
The fresh taste of vinho verde. The pretty blue of the tiles known as azulejos. And the Arab-tinged, irresistible sounds of fado, Portugal's national music. These are Lisbon's treats to the taste buds, the eye, and the ear. Are you ready to enjoy the gentle climate and old-fashioned charm of this Iberian capital? Navigate the city with ease, and enjoy the best it has to offer, with this easy-to-carry, informative guide to the town's variety of enchantments: delicious foods, like bacalhau (codfish); distinctive neighborhoods, like the Alfama, an old-world maze of small winding streets; and fabulous variety of sights, including the awe-inspiring architecture of the Jeacute;ronimos Monastery. And, the shopper or budget-conscious traveler will love the many bargains he'll be clued into!
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Metalloenzymes in Denitrification
The reduction of nitrate to nitrogen by metalloenzymes is a vital step in the nitrogen cycle. The importance of this pathway has inspired efforts to understand in greater depth the mechanisms involved. This book presents and discusses the latest information on multiple aspects of denitrification. Written by recognized specialists in the field, this book describes the bioinorganic aspects and the key enzymes involved in denitrification, including their structure, function and mechanisms. Active site modelling, novel methodologies for monitoring denitrification in vivo and biotechnological methods for water treatment are discussed. The book also focusses on the environmental implications of denitrification, such nitrate accumulation and the release of nitrous oxide into the atmosphere from excessive fertiliser use. An important topic in many biological, environmental and agricultural contexts, this book will aid teaching and help bioinorganic chemists and biotechnologists gain an up-to-date picture of the science behind the denitrification process.
