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2zd0

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'''Crytal structures and thermostability of mutant TRAP3 A5 (ENGINEERED TRAP)'''
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===Crytal structures and thermostability of mutant TRAP3 A5 (ENGINEERED TRAP)===
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==Overview==
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The ability of proteins to self-assemble into complex, functional nanoscale structures is expected to become of significant use in the manufacture of artificial nanodevices with a wide range of novel applications. The bacterial protein TRAP has potential uses as a nanoscale component as it is ring-shaped, with a central, modifiable cavity. Furthermore, it can be engineered to make a ring of 12-fold symmetry, which is advantageous for packing into two-dimensional arrays. The 12mer form of TRAP is made by linking multiple subunits together on the same polypeptide, but the usefulness of the 12mers described to date is limited by their poor stability. Here we show that, by altering the length of the peptide linker between subunits, the thermostability can be significantly improved. Since the subunit interfaces of the different 12mers are essentially identical, stabilization arises from the reduction of strain in the linkers. Such a simple method of controlling the stability of modular proteins may have wide applications, and demonstrates the lack of absolute correlation between interactions observable by crystallography and the internal energy of a complex.
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==About this Structure==
==About this Structure==
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[[Category: Ring protein]]
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[[Category: Rna binding protein]]
[[Category: Rna binding protein]]
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Revision as of 13:02, 28 July 2008

Image:2zd0.png

Template:STRUCTURE 2zd0

Crytal structures and thermostability of mutant TRAP3 A5 (ENGINEERED TRAP)

Template:ABSTRACT PUBMED 18287284

About this Structure

2ZD0 is a Single protein structure of sequence from Geobacillus stearothermophilus. Full crystallographic information is available from OCA.

Reference

Intersubunit linker length as a modifier of protein stability: crystal structures and thermostability of mutant TRAP., Watanabe M, Mishima Y, Yamashita I, Park SY, Tame JR, Heddle JG, Protein Sci. 2008 Mar;17(3):518-26. PMID:18287284

Page seeded by OCA on Mon Jul 28 16:02:29 2008

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