Download MendeleyA Refined Structure of Human Aquaporin 1
De Groot, B.L., Engel, A., Grubmuller, H.(2001) FEBS Lett 504: 206
- PubMed: 11532455
- DOI: https://doi.org/10.1016/s0014-5793(01)02743-0
- Primary Citation of Related Structures:
1H6I - PubMed Abstract:
A refined structure of the human water channel aquaporin-1 is presented. The model rests on the high resolution X-ray structure of the homologous bacterial glycerol transporter GlpF, electron crystallographic data at 3.8 A resolution and a multiple sequence alignment of the aquaporin superfamily. The crystallographic R and free R values (36.7% and 37.8%) for the refined structure are significantly lower than for previous models. Improved geometry and enhanced stability in molecular dynamics simulations demonstrate a significant improvement of the aquaporin-1 structure. Comparison with previous aquaporin-1 models shows significant differences, not only in the loop regions, but also in the core of the water channel.
Organizational Affiliation:
Max Planck Institute for Biophysical Chemistry, Theoretical Molecular Biophysics Group, Göttingen, Germany.
