Microbial physiology, biochemistry, and genetics allowed the
formulation of concepts that turned out to be important in the
study of higher organisms.
In the first section, the principles of bacterial growth are given,
as well as the description of the different layers that enclose the
bacterial cytoplasm, and their role in obtaining nutrients from the
outside media through different permeability mechanism described in
detail. A chapter is devoted to allostery and is indispensable for
the comprehension of many regulatory mechanisms described
throughout the book.
Another section analyses the mechanisms by which cells obtain the
energy necessary for their growth, glycolysis, the pentose
phosphate pathway, the tricarboxylic and the anaplerotic cycles.
Two chapters are devoted to classes of microorganisms rarely dealt
with in textbooks, namely the Archaea, mainly the methanogenic
bacteria, and the methylotrophs. Eight chapters describe the
principles of the regulations at the transcriptional level, with
the necessary knowledge of the machineries of transcription and
translation.
The next fifteen chapters deal with the biosynthesis of the cell
building blocks, amino acids, purine and pyrimidine nucleotides and
deoxynucleotides, water-soluble vitamins and coenzymes, isoprene
and tetrapyrrole derivatives and vitamin B12.
The two last chapters are devoted to the study of protein-DNA
interactions and to the evolution of biosynthetic pathways. The
considerable advances made in the last thirty years in the field by
the introduction of gene cloning and sequencing and by the
exponential development of physical methods such as X-ray
crystallography or nuclear magnetic resonance have helped
presenting metabolism under a multidisciplinary attractive
angle.
The level of readership presupposes some knowledge of chemistry
and genetics at the undergraduate level. The target group is
graduate students, researchers in academia and industry.
General
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