Nuclear magnetic resonance characterization of peptide models of collagen–folding diseases
- 28 February 2001
- journal article
- review article
- Published by The Royal Society in Philosophical Transactions Of The Royal Society B-Biological Sciences
- Vol. 356 (1406), 159-168
- https://doi.org/10.1098/rstb.2000.0761
Abstract
Misfolding of the triple helix has been shown to play a critical role in collagen diseases. The substitution of a single Gly by another amino acid breaks the characteristic repeating (Gly-X-Y)n sequence pattern and results in connective tissue disease such as osteogenesis imperfecta. Nuclear magnetic resonance (NMR) studies of normal and mutated collagen triple-helical peptides offer an opportunity to characterize folding and conformational alterations at the substitution site, as well as at positions upstream and downstream of a Gly mutation. The NMR studies suggest that the local sequences surrounding the substitution site, and the renucleation sequences N-terminal to and adjacent to the substitution site, may be critical in defining the clinical phenotype of osteogenesis imperfecta. These studies may pave the way to understanding the mechanism by which a single Gly substitution in collagen can lead to pathological conditions.Keywords
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