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TitleA refined structure of human aquaporin-1.
Journal, issue, pagesFEBS Lett, Vol. 504, Issue 3, Page 206-211, Year 2001
Publish dateAug 31, 2001
AuthorsB L de Groot / A Engel / H Grubmüller /
PubMed AbstractA 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 linksFEBS Lett / PubMed:11532455
MethodsEM (electron crystallography)
Resolution3.54 Å
Structure data

PDB-1h6i:
A REFINED STRUCTURE OF HUMAN AQUAPORIN 1
Method: ELECTRON CRYSTALLOGRAPHY / Resolution: 3.54 Å

Source
  • homo sapiens (human)
KeywordsMEMBRANE PROTEIN / WATER CHANNEL / TWO-DIMENSIONAL CRYSTAL

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