[1] European Bioinformat Inst, Hinxton CB10 1SD, England
[2] Univ Paris 06, CNRS, Dept Chem, UMR 7613, F-75252 Paris, France
[3] Univ Cambridge, Dept Plant Sci, Cambridge CB2 3EA, England
[4] Univ Grenoble 1, INRA, Inst Rech Technol & Sci Vivant, CEA,CNRS,Lab Physiol Cellular Vegetale,UMR 5168, F-38054 Grenoble, France
[5] Tech Univ Carolo Wilhelmina Braunschweig, Dept Plant Biol, D-38106 Braunschweig, Germany
[6] Univ Utah, Dept Biochem, Salt Lake City, UT 84112 USA
[7] Univ Kent, Dept Biosci, Protein Sci Grp, Canterbury CT2 7NJ, Kent, England