Role of Proteases in the Pathophysiology of Neurodegenerative Diseases by Abel Lajtha - PDF and EPUB eBook
Researchers seeking problems that offer more hope of success often avoid subjects that seem to be difficult to approach...
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Details of Role of Proteases in the Pathophysiology of Neurodegenerative Diseases
- Exact title of the book
- Role of Proteases in the Pathophysiology of Neurodegenerative Diseases
- Book author
- Abel Lajtha
- Book edition
- Number of pages
- 302 pages
- July 31st 2001 by Springer
- File size (in PDF)
- 1208 kB
Some brief overview of book
Researchers seeking problems that offer more hope of success often avoid subjects that seem to be difficult to approach experimentally, or subjects for which experimental results are difficult to interpret. The breakdown part of protein turnover in vivo, particularly in nervous tissue, was such a subject in the past - it was difficult to measure and difficult to explore the mechanisms involved. For factors that influence protein metabolism, it was thought that protein content, function, and distribution are controlled only by the synthetic mechanisms that can supply the needed specificity and response to stimuli.
The role of breakdown was thought to be only a general metabolic digestion, elimination of excess polypeptides. We now know that the role of breakdown is much more complex: it has multiple functions, it is coupled to turnover, and it can affect protein composition, function, and synthesis. In addition to eliminating abnormal proteins, breakdown has many modulatory functions: it serves to activate and inactivate enzymes, modulate membrane function, alter receptor channel properties, affect transcription and cell cycle, form active peptides, and much more.
The hydrolysis of peptide bonds often involves multiple steps, many enzymes, and cycles (such as ubiquination), and often requires the activity of enzyme complexes. Their activation, modification, and inactivation can thus play an important role in biological functions, with numerous families of proteases participating. The specific role of each remains to be elucidated.