Intersubunit linker length as a modifier of protein stability: Crystal structures and thermostability of mutant TRAP. Export

@article{citeulike:2428865, abstract = {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.}, author = {Watanabe, M. and Mishima, Y. and Yamashita, I. and Park, S. Y. and Tame, J. R. and Heddle, J. G.}, citeulike-article-id = {2428865}, citeulike-linkout-0 = {http://dx.doi.org/10.1110/ps.073059308}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/18287284}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=18287284}, doi = {10.1110/ps.073059308}, issn = {0961-8368}, journal = {Protein Sci}, keywords = {self-assembly}, month = {March}, number = {3}, pages = {518--526}, posted-at = {2008-02-26 09:56:08}, priority = {5}, title = {Intersubunit linker length as a modifier of protein stability: Crystal structures and thermostability of mutant TRAP.}, url = {http://dx.doi.org/10.1110/ps.073059308}, volume = {17}, year = {2008} }

TY - JOUR ID - citeulike:2428865 L3 - citeulike-article-id:2428865 N2 - 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. IS - 3 JF - Protein Sci SN - 0961-8368 EP - 526 TI - Intersubunit linker length as a modifier of protein stability: Crystal structures and thermostability of mutant TRAP. VL - 17 SP - 518 KW - self-assembly AU - Watanabe, M AU - Mishima, Y AU - Yamashita, I AU - Park, SY AU - Tame, JR AU - Heddle, JG PY - 2008/03// UR - http://dx.doi.org/10.1110/ps.073059308 ER -