By Ibanez, H. Jornvall, D. Ottoson, C. F. Ibaanez
Hardbound. In multicellular organisms, survival, proliferation and differentiation of a given phone rely on signs produced through different cells, leading to the coordinated improvement and serve as of a few of the tissues and organs. within the anxious approach, the social keep an eye on of phone survival and differentiation is accomplished throughout the motion of designated teams of polypeptides jointly referred to as neurotrophic elements. in the course of the examine of nerve development issue (NGF), the opposite contributors of the neurotrophin family members and different neurotrophic molecules, we've started to appreciate the mechanisms that govern lifestyles and loss of life within the worried method. the gathering of chapters during this e-book deals a complete view of the state of the art in a single of the quickest growing to be fields of neuroscience. From the main points in their atomic constitution, to the devastating outcomes of gene ablation, those pages summarize our present wisdom on neurotrophic components and their receptors
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Additional resources for Life and Death in the Nervous System. Role of Neurotrophic Factors and Their Receptors
Identifying how point mutations of ligands perturb the observed receptor-binding association a n d / o r dissociation rates will help define functional epitopes. Such epitopes may be far smaller than the actual structural epitope (58). A larger database of structures of free and ligandcomplexed receptor ectodomains will allow systematic comparison of the types of steric, electrostatic and hydrogen bonding interactions important for receptor engagement and an analysis of conformational changes that occur on ligand binding.
A dose-response assay revealed no differences between the R31A + H33A NT-3 mutant and wtNT-3 (Fig. 4a). In addition, the activity of the mutant in TrkC-MG87 fibroblasts was indistinguishable from wtNT-3 (Fig. 4b), indicating that this mutation L N G F R only affected binding to p 7 5 . The NT-3 mutant was tested in dissociated cultures of E8 chick DRG neurons and compared to wtNT-3. This mutant was able to promote survival of embryonic sensory neurons with a potency comparable to that of wtNT-3 (Fig.
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