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-Structure paper
Title | A refined structure of human aquaporin-1. |
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Journal, issue, pages | FEBS Lett, Vol. 504, Issue 3, Page 206-211, Year 2001 |
Publish date | Aug 31, 2001 |
Authors | B L de Groot / A Engel / H Grubmüller / |
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 ...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. |
External links | FEBS Lett / PubMed:11532455 |
Methods | EM (electron crystallography) |
Resolution | 3.54 Å |
Structure data | PDB-1h6i: |
Source |
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Keywords | MEMBRANE PROTEIN / WATER CHANNEL / TWO-DIMENSIONAL CRYSTAL |