Download MendeleyStructural characterisation of PinA WW domain and a comparison with other Group IV WW domains, Pin1 and Ess1
Ng, C.A., Kato, Y., Tanokura, M., Brownlee, R.T.C.(2008) Biochim Biophys Acta 1784: 1208-1214
- PubMed: 18503784
- DOI: https://doi.org/10.1016/j.bbapap.2008.04.026
- Primary Citation of Related Structures:
2JV4 - PubMed Abstract:
The NMR solution structure of the PinA WW domain from Aspergillus nidulans is presented. The backbone of the PinA WW domain is composed of a triple-stranded anti-parallel beta-sheet and an alpha-helix similar to Ess1 and Pin1 without the alpha-helix linker. Large RMS deviations in Loop I were observed both from the NMR structures and molecular dynamics simulation suggest that the Loop I of PinA WW domain is flexible and solvent accessible, thus enabling it to bind the pS/pT-P motif. The WW domain in this structure are stabilised by a hydrophobic core. It is shown that the linker flexibility of PinA is restricted because of an alpha-helical structure in the linker region. The combination of NMR structural data and detailed Molecular Dynamics simulations enables a comprehensive structural and dynamic understanding of this protein.
Organizational Affiliation:
Department of Chemistry, La Trobe University, VIC 3086, Australia.
