Solution Structure and Dynamics of The Chimeric SH3 Domains, SHH- and ShA-“Bergeracs”
Document Type
Article
Publication Date
2009
Keywords
Protein Folding, Protein Dynamics, High-resolution NMR, Flexibility, Intrinsic Disorder, PONDR
Digital Object Identifier (DOI)
https://doi.org/10.1016/j.bbapap.2009.08.021
Abstract
Two chimeric proteins, SHН and SHA of the “SH3-Bergerac” family (where the β-turn N47D48 in spectrin SH3 domain was substituted for KITVNGKTYE or KATANGKTYE sequences, respectively), were analyzed by high-resolution NMR to resolve their spatial structures and to analyze their dynamics. Although the presence of a stable β-hairpin in the region of the insertion was confirmed, the introduced extension of the polypeptide chain in SHН (∼ 17%) practically did not affect the total molecule topology. Interestingly, the introduced β-hairpin had higher mobility in comparison with other protein regions. Finally, we performed a disorder prediction with the PONDR® VSL2 algorithm and discovered that the inserted β-hairpin in both SHH and SHA proteins exhibited significant propensity for intrinsic disorder and therefore for high mobility. In agreement with the experimental data, the predisposition for the increased intramolecular mobility was noticeably higher in SHA.
Citation / Publisher Attribution
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, v. 1794, issue 12, p. 1813-1822
Scholar Commons Citation
Kutyshenko, Victor P.; Prokhorov, Dmitry; Timchenko, Maria A.; Kudrevatykh, Yuri A.; Gushchina, Liubov V.; Khristroforon, Vladimir S.; Gushchina, Liubov V.; Filimonov, Vladimir V.; and Uversky, Vladimir N., "Solution Structure and Dynamics of The Chimeric SH3 Domains, SHH- and ShA-“Bergeracs”" (2009). Molecular Medicine Faculty Publications. 564.
https://digitalcommons.usf.edu/mme_facpub/564
