Download MendeleySolution structure and mapping of a very weak calcium-binding site of human translationally controlled tumor protein by NMR
Feng, Y., Liu, D., Yao, H., Wang, J.(2007) Arch Biochem Biophys 48: 57-467
- PubMed: 17897616
- DOI: https://doi.org/10.1016/j.abb.2007.08.021
- Primary Citation of Related Structures:
2HR9 - PubMed Abstract:
Human translationally controlled tumor protein (TCTP) is a growth-related, calcium-binding protein. We determined the solution structure and backbone dynamics of human TCTP, and identified the calcium-binding site of human TCTP using multi-dimensional NMR spectroscopy. The overall structure of human TCTP has a rather rigid well-folded core and a very flexible long loop connected by a short two-strand beta-sheet, which shows a conserved fold in the TCTP family. The C-terminal portions of loop L(alpha3beta8) and strand beta9 and the N-terminal region of strand beta8 may form a calcium-binding site in the human TCTP structure, which is largely conserved in the sequence alignment of TCTPs. The K(d) value for the calcium binding is 0.022-0.025 M indicating a very weak calcium-binding site.
Organizational Affiliation:
National Laboratory of Biomacromolecules, Center for Structural and Molecular Biology, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing 100101, China.
